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Table of Content
20 March 2018, Volume 27 Issue 03
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    Study on the Temporal-Spatial Heterogeneity and Driving Factors of Air Environmental Efficiency for Yangtze River Economic Zone
    WANG Ke-liang1, SHI Li-juan1, LIU Lei1, DU Yu1, MENG Xiang-rui1, YANG Bao-chen2
    2018, (03):  453.  doi:10.11870/cjlyzyyhj201803001
    Abstract ( 116 )   PDF (864KB) ( 9 )   Save
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    Regarding air pollutant as bad output, this paper evaluates air environmental efficiency and air environmental total factor productivity of 11 provinces for Yangtze River Economic Zone (YREZ) during the period of 2006-2015 and investigates the temporal-spatial heterogeneity based on SBM-Undesirable model and Global Malmquist-Luenberger (GML) productivity index. Then using Theil index decomposition approach to reveal the sources of regional differences of YREZ’s air environmental efficiency and build “efficiency-productivity” matrix to investigate the advantage and disadvantage of improving air environmental efficiency of 11 provinces in YREZ. The empirical results show that the YREZ’s air environmental efficiency is relatively low, regional differences are significantly existed with downtrend during the study period, large potential of air pollutant reduction is indicated. It is found that the gap between YREZ’s upstream, midstream and downstream and the gap between the provinces of YREZ’s upstream are the major sources of the regional gap of YREZ’s air environmental efficiency; Technical progress is the major driver of YREZ’s air environmental total factor productivity, and technical efficiency deterioration seriously block the improvement of YREZ’s air environmental productivity. The advantage and disadvantage for improving air environmental efficiency is different in YREZ’s 11 provinces. As a result, each province should take targeted measure to control air pollutant. The conclusion of this paper can help YREZ to improve air environmental efficiency and realize sustainable development.
    Key words:Yangtze River Economic Zone; air environmental efficiency; temporal-spatial heterogeneity; driving factor
    Problems and Potentiality of Ecological Civilization Construction in Yangtze River Delta Urban Agglomerations:Based on the Comparison of Five Major Urban Agglomerations
    MI Ze-feng1,ZENG Gang1, ZHOU Can1,ZHU Fei-fei2
    2018, (03):  463.  doi:10.11870/cjlyzyyhj201803002
    Abstract ( 364 )   PDF (1896KB) ( 10 )   Save
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    Clarifying the current situation and problems of ecological civilization construction is of great significance to recognize the next direction of that in the urban agglomeration. This paper evaluates the present situation of the ecological civilization construction and summarizes the problems which faced by the five urban agglomerations with the ecological civilization evaluation index system constructed by the compound ecosystem theory and “PSR” model. The methods include the entropy weight TOPSIS method, the coordination degree model, the coupling coordination degree model and the potential model of ecological civilization construction. Research shows: (1) The contradiction between economic development and ecological protection is the main contradiction of ecological civilization construction in Yangtze River Delta urban agglomeration. As a whole, the natural, economic and social development of the urban agglomeration is out of harmony. (2)There is blindness and weak construction consciousness of ecological civilization construction in some Prefectural-Level cities, which is the lack of scientific guidance. (3) There is stronger initiative in developed areas, while there is a greater potential for ecological civilization development in the coordinated developed region. It is suggested that the urban agglomeration in the Yangtze River Delta should focus on the science and technology innovation and take the path of coordinated development of economic and environment. It is so wise to support large cities like Shanghai and Hangzhou as a model city at first, then to realize their function of leading role.
    Key words:urban agglomeration; ecological civilization; potentiality; PSR; compound ecosystem
    A Study on Carbon Emissions Efficiency of Tourism and Its Spatial Correlation Characteristics in China
    WANG Kai1, SHAO Hai-qin1, ZHOU Ting-ting1, LIU hao-long2
    2018, (03):  473.  doi:10.11870/cjlyzyyhj201803003
    Abstract ( 322 )   PDF (847KB) ( 7 )   Save
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    It is of great significance to measure and analyze China’s carbon emissions efficiency of tourism and its spatial heterogeneity scientifically to promote the sustainable development of tourism. This paper estimate the carbon emissions efficiency of tourism of 30 provinces in mainland China from 2000 to 2015 by using the Slack-Based Measure (SBM) considering the unexpected output. On this basis, the method of the non-parametric Kernel density estimation is applied to characterize the dynamic evolution of carbon emissions efficiency of tourism. The results found that there are obvious differences of carbon emissions efficiency of tourism among the 30 regions in China, and it is normal to see that the carbon emissions efficiency of tourism of the eastern region is higher than that of the western region. However, most of provinces are still in the state of carbon emissions inefficiency of tourism. Furthermore, the density curve reveals that an increasing trend of China’s carbon emissions efficiency of tourism is emerged as the time went by, and the distribution of carbon emissions efficiency of tourism changed from “single peak” to “three peaks” to “twin peak” over time, facing the problem of uncoordinated development; Besides, the spatial Durbin model is used to study the spatial correlation characteristics of carbon emissions efficiency of tourism among each provinces. Results show that the carbon emissions efficiency of tourism has apparent spatial spillover effects, that is to say, Not only is the carbon emissions efficiency of tourism affected by its own characteristics of each province, but also it is relevant to the development of the surrounding provinces. Specifically, the level of tourism technology, the level of economic development, the industrial structure and the degree of openess exert significantly positive impact on the tourism carbon emissions efficiency of both its own province and the surrounding provinces, The property right structure of tourism has a significant negative impact on the province’s own carbon emissions efficiency of tourism, while the impact on that of the surrounding provinces is not obvious. The tourism economy scale and the urbanization level have a negative external influence on the carbon emissions efficiency of tourism, but the effect of education on the carbon emissions efficiency of tourism is not significant.
    Key words:carbon emissions efficiency of tourism; SBM model; kernel density estimation; spatial Durbin model; China
    Analysis on the Spatio-Temporal Characteristics of Urban-Rural Construction Land in Southern Hangzhou Bay
    HE Gai-li1, LI Jia-lin1,2 SHI Xiao-li3, LIU Yong-chao4,5, FENG Bai-xiang1, HUANG Ri-peng1,TIAN Peng1, WANG Li-jia1, LIU Rui-qing1
    2018, (03):  483.  doi:10.11870/cjlyzyyhj201803004
    Abstract ( 331 )   PDF (2344KB) ( 4 )   Save
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    The large increase of urban-rural construction land is the main feature of modern land use.Based on the data of land use in 2005, 2010 and 2015, the spatio-temporal evolution of urban-rural construction land in the south bank of Hangzhou Bay is studied, which combined   with GIS spatial visualization using land use structure model, dynamic attitude model, landscape model. The results show that:(1)Urban and rural construction land is the largest increasing and the fastest growing in the area of all land use types in the south bank of Hangzhou Bay, but the growth rate has slowed down.; (2)The construction land of the town has the fastest growth rate, and the water conservancy facilities and the area of independent industrial and mining land are decreasing. Construction of the town of land and traffic land have the largest land dynamic, village and water conservancy public facilities are the lowest degree of dynamic; (3)Construction of the land composition:designated town land> village> city> traffic land> water conservancy and public facilities> independent industrial and mining land, the overall balance has declined,the dominance of designated town land is gradually emerging; (4)The spatial distribution of the land for construction is in the form of a polar nucleus and a belt, scattered and gradually expanding northward; (5)Before 2010, the construction land showed a fine grain dispersion development characteristics, which is to the coarse grain development after 2010, and landscape heterogeneity weakened.
    Key words:construction land;spatial-temporal characteristics; landscape pattern; Hangzhou Bay
    #br# Competition Pattern and Integration Development of Inland Ports of Yangtze River in Jiangsu Province
    ZHOU Si-yue1, HE Jin-liao2, HUANG Xian-jin2
    2018, (03):  493.  doi:10.11870/cjlyzyyhj201803005
    Abstract ( 259 )   PDF (1096KB) ( 8 )   Save
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    This paper focuses on the development and integration of inland ports of Yangtze River in Jiangsu province by using several qualitative models such as Port Location Quotient, Division Coefficient, Homogenization etc. It reveals some significant features of the inland port cluster in Jiangsu which are still on the stage far from sufficiently collaborative; there are lots of problems and challenges existing in current development. The results can be concluded as following: (1)Competitive relationship among different ports has been formed (a situation of tripartite confrontation with one superpower, one big-power and many powers) which takes Suzhou as the core, Nanjing as the inferior center, the other ports in southern and middle Jiangsu as the auxiliaries; (2)Excluding the container cargo transportation still maintain the monopoly position in hub ports, the port group construction of Jiangsu section belongs to high level. However, there are still some problems including the excessive competition and serious homogenization among all these ports; (3)Jiangsu inland port cluster is experiencing a period of slow adjustment of structure, in which the scale grade tends to remain a stable increase. Finally, this paper reviews the development trend of the Yangtze River inland port group in Jiangsu from the perspective of the integration of regional governance and provides some policy recommendations about port development in strategy optimization, re-positioning and collaboration.
    Key words:inland port group; competition pattern; integration; the Yangtze River
    Study on the Measurement and Coordination of Road Traffic and Economic Development in Anhui Province
    DING Meng-meng1, CAO Wei-dong1,2,ZHANG Da-peng1,REN Ya-wen1,YUE Yang1,YAO Zhao-zhao1
    2018, (03):  503.  doi:10.11870/cjlyzyyhj201803006
    Abstract ( 1298 )   PDF (1261KB) ( 3 )   Save
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    Measuring the coordination and analyzing the spatial-temporal pattern between regional road traffic and the level of economic development can provide a better theoretical and practical guidance for a balanced development in the development stage of “New Normal” and the strategy of “Yangtze River Economic Belt”. Based on the study of 16 cities in Anhui Province, this paper chooses three time nodes which are 2005, 2010 and 2015 to construct a comprehensive evaluation index system, then uses the entropy method, variation coefficient and coordination index to analyze the spatial-temporal pattern and coordination level between road traffic and economic development. The results show that: (1) The variation coefficient of economic development level is large, but that of road traffic is small, while the regional difference of both is obvious in Anhui Province. (2) The development level of road traffic in Anhui Province has been increasing year by year, and the distribution pattern has been changed from “Z” type to “V” type and then to “Z” type. The level of economic development has been integrally improved, and represents a typical Core-Periphery distribution in which the region of Hefei-Wuhu-Ma Anshan is the core. (3) The coordination degree between road traffic and economic development level is changed from coordinated to imbalance overall, meanwhile different urban development types are formed in different period, in which coordination and traffic lag are the main types.
    Key words:road traffic; economic development; spatial-temporal pattern; coordination; Anhui province
    Interactive Relationship between Population Mobility and Industrial Agglomeration: Based on County Panel Data of Hubei Province
    AO Rong-jun, MEI Lin, LIANG Ge,LI Jia-cheng
    2018, (03):  514.  doi:10.11870/cjlyzyyhj201803007
    Abstract ( 192 )   PDF (2482KB) ( 5 )   Save
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    Based on a dataset consisting of Gross Output Value of Industrial Enterprises above Designated Size and inter-county immigrants of 102 counties in 2000 and 2010, the spatial patterns of industries and immigrants in Hubei province are analyzed by univariate spatial correlation model firstly. Then, the spatial correlation between the inter-county distribution of industries and immigrants is measured by bivariate spatial autocorrelation model. Finally, the interaction between population immigration and industrial agglomeration is investigated based on the Panel Data Simultaneous Equations Model. The main results are as follows. (1) The inter-county distributions of immigrants and industries in Hubei province are spatially correlated positively. The bivariate LISA cluster maps indicate that the “High-High” type clusters distribute in the areas consisting of Wuhan city and its neighboring counties, and the “Low-Low” type clusters distribute in the western areas. (2) The interaction between population immigration and industrial agglomeration is significant. Ceteris paribus, if the degree of industrial agglomeration increased by 1 percent, the amount of overall inter-county immigrants and intra-provincial inter-county immigrants would increase by 0.544 9 percent and 0.602 3 percent respectively. In the other hand, if the amount of overall inter-county immigrants or intra-provincial inter-county immigrants increased by 1 percent, the degree of industrial agglomeration would increase by 0.294 percent or 0.267 8 percent correspondingly. (3) The provinces that characterized by relatively lower level of socio-economic development in the central and western China should promote the co-agglomerations between population and non-agricultural industries to foster growth pole. So that the objectives of regional economic growth and inter-regional coordinated development might be attained.
    Key words:inter-county immigration; industrial agglomeration; spatial correlation; interaction; Hubei province
    Spatio-temporal Variations of Evapotranspiration in Anhui Province Using MOD16 Products
    WANG Fang1,2,WANG Zuo1,2,ZHANG Yun1,2, SHEN Fei1,2
    2018, (03):  523.  doi:10.11870/cjlyzyyhj201803008
    Abstract ( 266 )   PDF (4934KB) ( 5 )   Save
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    Anhui is one of the agricultural provinces in China, and the management and utilization of water resources directly affect the sustainable development of agriculture. It is of great significance to analyze the changes of evapotranspiration in Anhui Province, which rationally allocates water resources and rational use. Based on MOD16 data, the spatio-temporal variations of surface evapotranspiration in Anhui Province from 2000 to 2014 were studied by using the method of mean, standard deviation method, bias analysis, trend analysis and spatial variation analysis. Besides, the variation characteristics of evapotranspiration under different land use types were analyzed. The results showed that: 1) the annual average evapotranspiration was 694.9 mm during 2000-2014, and the annual mean value of surface evapotranspiration fluctuated from 647.5 to 730.5 mm, and interannual changes showed a downward trend, and it had strong spatial distribution, with the trend of higher in the south and lower in the northern part of the Province. There were significant differences in the annual evapotranspiration of each city, and the highest evapotranspiration in Huangshan was 844.1 mm, while the lowest was 603.7 mm in Suzhou. 2) The variations of monthly evapotranspiration in Anhui province showed the trend of “single peak”, and there were obvious seasonal differences, the magnitude of the evapotranspiration in the season was: summer(304.17 mm)> spring(167.56 mm)> autumn(150.41 mm)> winter(73.92 mm). The evapotranspiration of the cities in the south of Huaihe River showed a trend of “single peak ”, while the north of the Huaihe River was a typical “bimodal peak” trend. 3) The evapotranspiration varied for different land use types in Anhui Province, and the annual evapotranspiration was decreased according to the order of “forest land> grassland> unused land> cultivated land> residential land”.
    Key words:MOD16; Anhui Province; evapotranspiration; temporal and spatial distribution; land use type
    Evaluation of Nature Suitability for Human Settlement in Anhui Province Based on GIS and Grid Data
    SHEN Fei1, HUANG Yan-ping1, WANG Fang1, MA Jin-ji1, CHEN Ming-xing2
    2018, (03):  535.  doi:10.11870/cjlyzyyhj201803009
    Abstract ( 206 )   PDF (1541KB) ( 2 )   Save
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    The scientific measurement of the suitability of the natural environment of human settlements will be conducive to guide reasonably the population distribution and mobility, and promote the coordinated development of regional population and the resources and environment. By using GIS technology and taking 250 m×250 m grid as the basic unit, the climate, topography, hydrology, ground cover, natural disasters and other factors were selected to construct the natural suitability evaluation model of human settlements and evaluate quantitatively the natural suitability of human settlements in Anhui Province. On this basis, suitability and restrictive factors of each type of area are analyzed. The research shows that the index of natural suitability of human settlements in Anhui Province is between 33.64 and 74.58, and the natural suitability of human settlements is generally good, and most of the areas are suitable for human settlements, and there is a general trend of “higher in the south while lower in the north” in space which is just opposite to the existing population distribution pattern. Considering area, the general suitable region is the most extensive, accounting for about 46.08% of the total area of Anhui Province; the more suitable region ranks second, about 31.29% of the total; the highly suitable region accounts for 22.54% of the total; the critically suitable region is the smallest, only about 0.08%. About 61.16% of Anhui’s population is concentrated in the general suitable region. The percentage of the highly suitable region and the more suitable region’s population is less than 40%. The critically suitable region’s population is extremely scarce. Topographic relief and hydrological index are the main factors that cause the natural suitability of the human settlements in the whole province, and the evaluation results reflect objectively the natural background of the human settlements in Anhui Province. The space for the provincial population survival and development is fairly large, and there is a wider suitable range for population mobility and agglomeration.
    Key words:human settlements;natural suitability;grid;GIS;Anhui Province
     
    Temporal-Changes in Hinterland Soil Erosions Within Three Gorges Reservoir Area
    WEN Wen,LI Yang-bing,LI Rui-kang,ZHOU Ya-lin
    2018, (03):  544.  doi:10.11870/cjlyzyyhj201803010
    Abstract ( 221 )   PDF (3253KB) ( 7 )   Save
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    This study includes five county-based hinterland locations located within Three Gorges Reservoir Area (TGRA). Based on the Remote Sensing Imagines in the years of 1988, 2000, 2010 and 2015, the GIS and RS techniques were applied for data extraction of the soil erosion integrated index to analyze temporal variations of hinterland soil erosion at the regional and local scales within the TGRA. The two results were found as follows: (1) at the regional scale (i.e. Entire study area), the hinterland soil erosion fluctuated dramatically to be worsened until the year of 2000, and then improved gradually to be in stable; (2) at the local scale, the hinterland soil erosion evolved in temporal trend with four different types (i.e. Continuously-improved, Continuously-worsen, Fluctuating-improved, and Fluctuating-worsen). Temporal trend of soil erosion was found with the same type among most of local areas in this study, except for the Yunyang County and areas which are located nearly by the reservoir; (3) the priority of governance and management should be emphasized on the 12 towns which were identified as the continuously-worsen type, and followed by other 24 towns which were classified as the fluctuating-worsen type. All aspects of the study findings will have important implications specified to the governance and management of TGRA.
    Key words:hinterland soil erosion; integrated index; multi-scale analysis; Three Gorges Reservoir Area
    Study on the Change of Landscape Pattern on Habitat Environment of Winter Cranes in Shengjin Lake Nature Wetland
    CHEN Ling-na1,DONG Bin1,2,PENG Wen-juan 1, GAO Xiang1,HUANG Hui1, WANG Cheng1, YE Xiao-kang 1, ZHU Ming1,Lv Dian1,ZHAO Kang-kang 1, ZHANG Shuang-shuang 1, NI Yan-hua1
    2018, (03):  556.  doi:10.11870/cjlyzyyhj201803011
    Abstract ( 226 )   PDF (1168KB) ( 6 )   Save
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    Shengjin Lake wetland was located in the middle and lower reaches of the Yangtze River in Anhui Province. It was one of the important areas for wintering cranes and the changes of wetland landscape influence the habitat quality of wintering cranes. It was of great significance to study the wetland ecological restoration in wetland. With the rise of Shengjin Lake National Nature Reserve as the research object, ERDAS software was used to divide TM image into 8 landscape types in 8 years in winter from 1986 to 2015. The landscape indexes of each year were calculated by using FRAGSTATS software. Disturbance degree, food richness, vegetation cover and hydrological condition, were selected as the main factors affecting wintering habitat of cranes. A habitat suitability index model for wintering cranes was established and the habitat suitability assessment maps for cranes were generated by ARCGIS. The results show that the change of landscape pattern in Shengjin Lake protected area was obvious, the number of wetland patches increased, the fragmentation degree of landscape increased, the landscape patch difference became smaller, and the diversity index and evenness index increased gradually. The habitat suitability index of wintering cranes decreased from 0.845 to 0.465, and the overall habitat deteriorated significantly. The habitat suitability of wintering cranes fell from 13 577.11 hectares in 1986 to 7 424.42 hectares in 2015.From 1986 to 2015, the number of wintering cranes decreased.
    Key words: habitat impact factors;habitat suitability evaluation model; winter cranes ;landscape
    Metazooplankton Community Structure and Saprobity Evaluation in Dajiuhu Wetland of Shennongjia Alpine#br#
    PAN Chao1, LIU Lin-feng1, GAO Jian1,2, ZHOU Xian-hua3, LIU Mei-qun3, PAN Xiao-bin3, CAI Shi-yao3, HE Lei3, WANG Hui-jun1, ZHANG Jia-min1, ZHAO Yi-jun1, LIU Wei1, MIAO Teng4, KANG Yu-hui4, XU De-xiong1
    2018, (03):  564.  doi:10.11870/cjlyzyyhj201803012
    Abstract ( 147 )   PDF (1037KB) ( 5 )   Save
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    Dajiuhu wetland is a rare subtropical alpine in the central China. The Dajiuhu wetland is the source of the Du river, a first-grade tributary of the Han River, and the wetland also serves as one of the important water conservation area of the middle routes of South-to-North Water Diversion Project. The human activities such as ditches digging, holes dredging and bog draining have led to severe degradation of ecological function and the shrinking of lake surface area in Dajiuhu wetland since 1986. After the implementation of ‘the Dajiuhu wetland protection and ecological restoration project’ from 2005 until present, we conducted a field survey on the metazooplankton community and lake saprobity status from November 2014 to September 2015 to reveal the status quo post the restoration project.A total of 36 metazooplankton species were observed, including 29 rotifer species, 2 copepod species and 5 cladoceran species. Keratella cochlearis and Asplachna sp. were the common dominant species in November 2014, and Keratella cochlearis,Filinia maior, Keratella cochlearis tecta, Polyarthra vulgaris, and Brachionus calyciflorus in May 2015; Brachionus diversicornis,Filinia maior, and Brachionus forficula in September 2015. The dominant species were o-βmesosaprobity in November 2014, o-β and β-mesosaprobity in May 2015, and β-mesosaprobity in September 2015. Redundancy analyses indicated that CODMn were the key drivers behind this difference of metazooplankton saprobity distribution.
    Key words:Dajiuhu wetland; metazooplankton; saprobity; alpine wetland
    Research on the Change and Simulation of Landscape Pattern in Mining Area With Higher Level of Underground Water——A Case Study of Peibei Mining Area
    WANG Hui, DING Zhong-yi, HOU Hu-ping, JIA Fei-fei, YANG Zi-rui
    2018, (03):  574.  doi:10.11870/cjlyzyyhj201803013
    Abstract ( 719 )   PDF (2505KB) ( 5 )   Save
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    The coal mine area in eastern China is one of the typical areas in resource utilization, which is characterized by high groundwater level. In this area, the land reclamation is difficult to implement and maintain effectively due to the combination relationships among coal and grain, coal and water, coal and village. The study on the spatial-temporal evolution law of Landscape in the high water level coal mine area can provide an important scientific basis for making effective land reclamation strategy. This study selected the Peibei mining area as a case study, which locate in Xuzhou city, Jiangsu Province. In this study, based on the data of Landsat TM image in 1995 , Landsat ETM+ images in 2005 and Landsat8 OLI images in 2015, land use transfer trajectory and landscape pattern index were used to analyze the characteristics of landscape pattern changes and CA-Markov model was used to forecast the land use landscape pattern in 2025.The results showed that: (1) The trend of landscape change was obvious: During 1995 to 2015,the cultivated land is the main source of land transfer,which is mainly converted to the building land, water and wetlands. In addition, collapse water area mainly comes from the building land and cultivated land, and the contribution ratios were 47.68% and 19.20% respectively. (2) The simulation results of CA-Markov model show that from 2015 to 2025, the area of cultivated land, water and wetland decreased, on the contrary, the area of construction land and collapse water area increased significantly. (3) The results of landscape pattern index analysis show that: On the patch type level, farmland, water and wetlands. are dominant types in the study area, however the degree of fragmentation of cultivated land, collapse water area, water and wetland is higher. On the landscape level, the overall shape of the landscape pattern tends to be simple. The results above show that the changes of land use landscape in the study area are caused by the acceleration of regional urbanization and the increase of surface subsidence caused by mining activities. It is suggested that the prevention and control scheme of the expected subsidence area and the planning management scheme of collapsed area should be prepared in advance.
    Key words:landscape pattern evolution; coal mine; high ground water; land landscape pattern; CA-Markov
    Variation Characteristics of the HazardInducing Tropical #br# Cyclones and Their Direct Economic Loss in the Coastal #br# Region of Southeastern China During 1986-2015
    CHEN Xue1, WANG Yanjun1, WEN Shanshan2,5, SU Buda 1,2,3,
    2018, (03):  583.  doi:10.11870/cjlyzyyhj201803014
    Abstract ( 286 )   PDF (2819KB) ( 5 )   Save
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    Hazardinducing tropical cyclones are defined as those causing economic losses. Based on the direct economic losses, socioeconomic data, and track data of 180 hazardinducing tropical cyclones that occurred in the provinces of Zhejiang, Fujian and Guangdong during 1986-2015, this study analyzes the spatiotemporal distribution of the frequency, direct economic losses, wind speed and precipitation of the hazardinducing tropical cyclones in coastal region of southeastern China. 1) The results reveal that the total frequency of the hazardinducing tropical cyclones in these three provinces have shown an increasing trend during 1986-2015. The highest frequency was found in Guangdong Province. Comparatively lower frequency was found in Zhejiang Province, while the frequency of those tropical cyclones with intensity higher than typhoon has shown a significant rising trend. 2)The total direct economic losses caused by the hazardinducing tropical cyclones in these three provinces have been increasing during 1986-2015. However, the percentages of the direct economic losses to regional GDP in these provinces have all been decreasing to different extents during 1986-2015, with that of Guangdong declining the most. Zhejiang province suffered the greatest direct economic loss, while the direct economic loss in Fujian province was relatively small. 3) The direct economic losses of the hazardinducing tropical cyclones are closely related to the wind speed and the rainfall. The influence of wind speed was significant in Guangdong, while the rainfall has significant impacts in Zhejiang. The eastern and southern Zhejiang, northeastern Fujian as well as the eastern and southwestern Guangdong have been affected frequently by the hazardinducing tropical cyclones with high wind speed and precipitation, and thus suffered the most serious direct economic losses. This study provides references for the disaster prevention and mitigation policies of tropical cyclone in the coastal region of southeastern China.
     
    Analysis of Land Function Evolution and Its Driving Forces in the #br# Hinterland of Three Gorges Reservoir Area
    LI Ruikang1,HUANG Yong2,LI Yangbing1,LIU Liqiong1,RAN Caihong1,ZU Linlin1
    2018, (03):  594.  doi:10.11870/cjlyzyyhj201803015
    Abstract ( 118 )   PDF (8082KB) ( 9 )   Save
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    Land use function reflects the change of land use pattern and intensity to a certain extent. The paper takes the hinterland of the Three Gorges Reservoir area Fengjie County and Wushan County as the study areas, analyses temporal and spatial evolution of land use function, and explore the natural factors such as altitude, slope and lithology factor, as well as the coupling driving mechanism of population, road and other social and economic conditions, to reveal the theoretical and practical significance of land use function using spatial autocorrelation, hot spot analysis and other research methods based on multitemporal remote sensing image data of 1986, 2000, 2007, 2015. The results shows: 1. In terms of the quantity of land use function, the living land shows an increase, while the production function decreases, and the ecological land tends to be stable. On the change of land use function area, the three functions shows a stable development; 2. As far as the distribution is concerned, the production function is changed from the large to the small and the gathering area is reduced; The clustering of life function continues to increase, and the area is enlarged; The ecological function is changed from agglomeration to decentralization with an increase area; 3. As for the driving mechanism of land use function, natural factors, including elevation, slope and lithology, influence the spatial variation of the three function.
    Tourism Ecological Security Evaluation and Obstacle Factors Analysis of Zhangjiajie
    XU Mei1, LIU Chunla2
    2018, (03):  605.  doi:10.11870/cjlyzyyhj201803016
    Abstract ( 128 )   PDF (831KB) ( 5 )   Save
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    Study on tourism ecological security is of great significance for tourism destination to the coordination of ecological environment protection and tourism development. Based on tourism ecological security data of Zhangjiajie from 2001 to 2014, the tourism ecological safety evaluation index system of “TQR” was constructed from 3 aspects, which were threaten, quality and regulation. Then, by using the grey relation projection method and obstacle degree model, the ecological security status and main obstacle factors were analyzed. Results indicated that: In 2001-2014, the tourism ecological security grey related projection value kept the rise trend although there was some volatility, and the security situation was in the “general” level except in 2003. In terms of each subsystem, in 2001-2014, the ecological security situation of threaten system drop from “general” level to “relatively unsafe” level, the ecological security situation of quality system was in “relatively safe” level except in 2003, the ecological security situation of regulation system raised from “less safety” level to “safer” level. In 2001-2014, the main obstacle factors that influencing the tourism ecological security of Zhangjiajie had some changes. In early times, the main obstacle factors were ecological land be occupied, sewage treatment level was low, and the quality of practitioners was not high. In recent years, factors as visitor density control, tourism resource utilization intensity control, ecological land protection and pollution reduction were facing a growing press.
    Key words:tourism ecological security; evaluation; grey relation projection method; obstacle factors; Zhangjiajie
    Contribution Rate Analysis of Driving Factors on the RainfallSediment #br# Relationship of Zhangriver Watershed in the Upper Region of Ganjiang Watershed
    LIU Huiying1,2,BAI Huang1,2
    2018, (03):  615.  doi:10.11870/cjlyzyyhj201803017
    Abstract ( 156 )   PDF (937KB) ( 7 )   Save
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    The sediment load dramatically decreased at Zhangshui River watershed, the upper Ganjiang River of China. Quantitatively analyzing the contributions of anthropogenic and climatic factors on the reduction would be helpful of better understanding the dynamic of hydrological processes. Based on the longterm hydrological and meteorological series, this study was aimed to analyze the trends and change points of annual precipitation and sediment loads from 1956 to 2015 at Bashang gauging station of Zhangshui River watershed. It was realized by the help of the trend test, Pettitt test,and comparision of changes in the slope of cumulative annual measured data vs years between the two connected periods.Consequently,a significant decreasing trend was revealed in annual sediment loads, whereas insignificant decreasing trends were detected for annual precipitation and annual runoff, respectively. Meanwhile, there was a change point of annual sediment in 1994. By the benefit of the double accumulative curve(DMC) method between the accumulative annual rainfall to sediment, the relative change point was recognized to be 1995. According to this relative change point, the whole period was divided into two connected parts of 1956-1994 and 1995-2015.The contribution rate of remarkable decline of sediment load in the upper region of Ganjiang River watershed in 1995-2015 was also obtained when the rainfall was taken for the indicator of natural factor. As a result, the contribution rate of the human intervention to sediment load was 99.4% in 1995-2015, when the period of 1956-1994 was taken as a fundamental baseline. Integrating all these results, this paper could prove clearly that human intervention has a significant impress on rainfallsediment relationship of Zhangshui River watershed. Also it has an useful meaning as a method to evaluate the benefit of soil and water conservation measures. The study provides scientific foundation for understanding the causes of water resources decrease and significant information for water resources management under the influence of climate change and human activities.
    Key words:rainfallsendiment relationship; ZhangRiver watershed; contribution rate of human intervention; rainfall erosivity;double cumulative curve
    Relationships Between Spatial Pattern of Landscape Fragmentation and Urbanization and SocioEconomic Developmental Level in Southwest Mountainous Region: A Case Study of Yubei District in Chongqing
    WANG Rong,ZHOU Baotong,GAN Xuekun
    2018, (03):  621.  doi:10.11870/cjlyzyyhj201803018
    Abstract ( 138 )   PDF (1267KB) ( 7 )   Save
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    The landscape fragmentation in urbanization has attracted considerable concern in recent years. Landscape fragmentation index as a quantitatively measurement for the reasonability of urban development has been widely used in researches. This paper selected four kinds of representative landscape fragmentation index in Yubei district of Chongqing, then analyzed the spatial pattern and internal differences of landscape fragmentation, and researched the relationships between landscape fragmentation and urbanization and the socialeconomic development level by the moving window method, gradient method, correlation and regression analysis. Results show that urban and forest landscape fragmentation of Yubei district is significantly lower than that in other lower altitude township units, the farther the city is away from the city center, the higher degree of the landscape fragmentation it has, and the numeric value begins to decrease when it comes to the top at the edge of the city. Population density is the direct affecting factor of the degree of landscape fragmentation, while the economic development is the indirect one. This research could contribute to reveal the internal spatial pattern of the evolution characteristics in southwest mountainous area, and also provide the theory basis for the biodiversity conservation, the green corridor maintaining and the construction of ecological civilization city.〖HJ1〗〖HJ〗〖HQ〗
    Impact of Environmental Taxes on High Pollution Industries
    LIN Siyu, SHI Lei, MA Zhong, WEN Yang
    2018, (03):  630.  doi:10.11870/cjlyzyyhj201803019
    Abstract ( 329 )   PDF (724KB) ( 3 )   Save
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    In view of the influences of environmental tax on high pollution industries, this paper selected Shaoyang City in Hunan Province as the research area and the COD emission was taken as an example. This paper investigated the cost of wastewater treatment of different industries, which were considered to cause the highest COD emission, such as pulp and paper industry, agricultural and sideline food processing industry, chemical raw material and chemical product manufacturing. Based on the previous survey, it was found that there were significant differences of average treatment cost among these industries, indicated by the calculated average cost from 1.55 yuan/kg to 8.11 yuan/kg. However, the charge of wastewater emission is 0.7 yuan/kg far below the average cost. Thus, with environmental taxes at such a low level, it could neither encourage these industries to reduce wastewater emission nor raise funds for government to further deal with environmental pollution. This paper analyzed the impacts of environmental tax levied on industries of high COD emission in Shaoyang. The results suggested that the influence rate of current tax policy on most industrial interest and taxes was less than 5%, such as the environmental protection tax in regard to the average treatment cost of industries and in case of the increased marginal cost. Moreover, based on the average treatment cost the environmental protection tax levied on industries would not only eliminate the backward production capacity of high pollution but also promote the optimal allocation of the entire industrial resources, which is of practical significance for the industrial development, promotion of supply side reform and improvement of the environmental quality in the long run.
    Key words:environmental tax; impact analysis; highpolluted enterprises; supplyside reform
    Response of Danjiangkou Reservoir Inflow to Meteorological Factors and Forecasting
    QIN Pengcheng, LIU Min, XIAO Ying, WANG Miao, FANG Sida, REN Yongjian
    2018, (03):  638.  doi:10.11870/cjlyzyyhj201803020
    Abstract ( 108 )   PDF (1329KB) ( 6 )   Save
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    Based on the monthly inflow data of Danjiangkou reservoir as well as the meteorological data of 41 weather stations in the upper basin during 1959-2016, the key meteorological factors and timing that affecting inflow were identified by correlation analysis, and then forecasting models for each month were established and systematic errors were also analyzed. The results show that the reservoir inflow is significantly and positively correlated with precipitation, with the highest correlation ranging from 0.45 to 0.85 for each month, and negatively correlated with temperature, with the highest correlation ranging from -0.26 to -0.54. generally, the rainy season has a higher correlation, and the influencing timing is in the latest 1-3 months, while the nonrainy season has a lower correlation, with a more longer influencing timing of 2-6 months. Using mean temperature and precipitation in the last several months as predictor variables, stepwise regression model with logarithmic transformations was chosen as the best fitted model, the models could explain 45%-88% of the total variance for each month, and more than 75% for rainy season months. 10-fold cross validation give a mean absolute percentage error within 20.5%-40.7% for each month, and 9.6% for whole year. The spatial and temporal distribution of precipitation can have a significant impact on forecast accuracy, with precipitation of the upper subbasin of hanzhong, shiquan, ankang and baihe above normal level, or precipitation in the edge of the basin below normal level, there may be a lower forecast discrepancy, while higher forecast discrepancy on the contrary, and a more concentrated or heavy precipitation results in a lower forecast discrepancy, a more even precipitation distribution leads to higher discrepancy.
    Key words:Danjiangkou Reservoir; inflow; regression analysis; forecasting error
    Research on Vegetation Information Extraction and Distribution Characteristics of Rocky Desertification Area by Means of Object Oriented Approach#br#  
    ZHENG Hui-ru1,LUO Hong-xia1,XIANG Hai-yan1,CHENG Yu-si1,YANG Ren-fei1,CHENG Quan-ying2
    2018, (03):  648.  doi:10.11870/cjlyzyyhj201803021
    Abstract ( 191 )   PDF (4408KB) ( 2 )   Save
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    Northeastern Chongqing is the key harnessing area of Karst rock desertification, where there is complex terrain, steep slopes and serious vegetation degradation. Knowledge of vegetation distribution pattern in this area is of great practical significance for the improvement of the environment and the control of rock desertification. By using Landsat 8 OLI remote sensing image, 30 mresolution DEM data and field survey data, we extracted the vegetation information with an objectoriented image classification method. Then, statistics, mapping and analysis on the classified data were implemented to comprehend the characteristics and law of vegetation spatial distribution pattern in this area. The results showed that:(1) after multiscale segmentation with eCognition 9 software, land cover was classified by using the membership function method based on land cover features. This approach is applicable to the land cover classification in the Karst rocky mountain areas, the classification accuracy reached 81.35%.(2) The study area is typical of the middle mountain area. The area at an altitude between 500 and 1 500 meters accounted for 64.49%. Woodland and cropland are the major land cover types in this area, which cover an area of 8 872.22 km2, accounting for 96.50% of the total area of the study area. The distribution of various land cover types is greatly influenced by the topography.(3) The results showed that cropland, grass and bush mainly distributed between the elevation of 200 and 1 500 meters, with the slope grade between level 2 and 4(i.e. 5°-35°), according to the correlation between terrain factors(i.e. elevation and slope) and vegetation distribution. There are frequent human activities, low vegetation coverage, and unstable community growth in this area, which make it vulnerable to interference. Mixed coniferbroadleaved forest is mainly distributed in the elevation higher than 500 meters, with the slope grade between level 2 and 4(i.e. 5°-35°). Masson pine forest, broadleaved forest and cupressus funebris forest are mainly distributed in the elevation higher than 500 meters, with the slope grade between level 2 and 5(i.e. 5°-45°).
    Key words:multiscale segmentation; objectoriented classification; terrain factor; vegetation spatial distribution
    SpatialTemporal Variations of Lakes in Qinghai Province and Its #br# Responses to Climatic Change Analysis from 1990 to 2015
    CUI Jinxia 1,3, GUO Anting2, DU Rongxiang 1, TANG Bin1, WANG Jingyun3, ZHAO Xiangwei3,4
    2018, (03):  658.  doi:10.11870/cjlyzyyhj201803022
    Abstract ( 134 )   PDF (2085KB) ( 5 )   Save
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    As an important part of the terrestrial hydrosphere, lake is an essential information carrier for revealing global climate change and regional response. Spatiotemporal variation characteristics of lakes in Qinghai Province from 1990 to 2015 were obtained by using remote sensing technology, and the responses of lakes to climate change were explored based on the spatiotemporal variation characteristics of temperature and rainfall in Qinghai Province in recent 25 years. Results show that the lake area has increased from 12 757 km2 to 15 167 km2 and that the number of lakes has increased from 241 to 286 in Qinghai Province over the past 25 years. The spatiotemporal variations of lakes are very different in different regions, including Eastern region(Ⅰ), northwest region(Ⅱ) and southwest region(Ⅲ). Precipitation enhancement promoted the increase of lake area and quantity in the area Ⅰ where lake area increased from 7 173 km2 to 8 474 km2 and where number of lakes increased by 19. In the area Ⅱ, lake area increased from 1 369 km2 to 1 542 km2, and number of lakes increased by 7. The area Ⅱ is located in the Qaidam Basin, which is one of the arid areas in china with dry and rainless climate and small lake area. The main factor for lake expansion is the increase of rainfall and main factor for lake shrinking is lake evaporation. Lake area of the area Ⅲ increased from 4 215 km2 to 5 152 km2, and number of lakes increased by 19. The lake expansion in the area Ⅲ is due to the increase of rainfall and decrease of evaporation. The basic data for scientific utilization of lake and rational allocation of water resources in Qinghai Province were provided in this study.
    Key words:Qinghai province; lake; spatiotemporal variation; responses to climatic change
    Analysis of Influencing Factors on Farmers’ Adoption of the Application Technology of Organic Fertilizer Combined with Chemical Fertilizer#br# ——Based on the Survey of Farmer Households in Jiangsu, Zhejiang and Anhui
    ZHU Liqun1,3,WANG Jue2,WANG Chunjie2,ZHANG Peipei2
    2018, (03):  671.  doi:10.11870/cjlyzyyhj201803023
    Abstract ( 197 )   PDF (1019KB) ( 9 )   Save
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    In order to research the main factors influencing farmers’ willingness to adopt the application technology of organic fertilizer combined with chemical fertilizer, a binary Logistic regression model was used to analyze the data collected by 596 surveys across Jiangsu, Zhejiang and Anhui provinces, based on the theory of risk aversion. It is mainly affected by the head of household age and special experience, proportion of agricultural workers, farmers accounted for excessive fertilization and cognition of organic fertilizer, the agricultural fertilization technology to be propagated or not by local governments. Accordingly, three proposals were advanced to policymakers for reference: First, the government should strengthen the publicity and promotion of the application technology of organic fertilizer combined with chemical fertilizer; Second, the government should help the relevant organizations to solve the outstanding problems of organic fertilizer; Finally, the government should improve the support of relevant policies
    Farmer Cognition, External Environment and Willingness of Green Agriculture Production ——Based on the Survey Data of 632 Farmers in Hubei Province
    HUANG Yanzhong1,2, LUO Xiaofeng1,2, LI Rongrong1,2,ZHANG Junbiao1,2
    2018, (03):  680.  doi:10.11870/cjlyzyyhj201803024
    Abstract ( 185 )   PDF (778KB) ( 5 )   Save
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    Based on the survey data of 632 rural households in Hubei province, this paper considered the external environment of green agriculture production, and combined the farmers’ cognition of green agricultural production and the characteristics of farmers’ households. Then the logistic regression was employed to analyze the influencing factors of farmers’ willingness to green agriculture production. The results  show that :(1) several factors have a positive impact on farmers’ willingness, such as the proportion of agricultural income in the total household income, the economic benefits and understanding of green agriculture, rural environmental pollution status and government subsidies;(2) nevertheless, some other factors will weaken the farmers’ willingness, including the farmers’ age, the risk of adopting green technology and government regulation. Therefore, in the process of promoting the green transformation of agricultural production, we should strengthen the training of professional farmers and the green agricultural production technology, in order to guarantee the reliability of green technology. At the same time, the government should improve the green agricultural production system, and moreover should guide and standardize the green agricultural production behavior of farmers by means of incentive policies instead of regulation and punishment mechanism
    To Lead the Integration Development of  “Large Water Economy” With Global Water Planning——Based on the Investigation of Anlong County in Guizhou Province
    MA Jingzhou,WU Xinmu
    2018, (03):  689.  doi:10.11870/cjlyzyyhj201803025
    Abstract ( 79 )   PDF (881KB) ( 4 )   Save
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    The Fifth Plenary Session of the 18th CPC Central Committee stressed that we should firmly establish and practice the developing concept of innovation, coordination, green, open and sharing. Economic and social development must be coordinated with the ecological environment. The State Department has released a series of documents about controlling and developing water. Through perfecting water articles, playing water advantages, enriching water economic connotation, the WholeRegion Water Planning can determine the waterdevelopment, waterindustry, waterscale and waterlayout. The WholeRegion Water Planning can also lead the integration development of industry, agriculture, culture, tourism, health, medium medicine, pension and other industries. Then, the “Green water and Castle peak” will become “Gold hill and Silver hill”. Based on the analysis of the relevant national water controlling policies and the county situation & water conditions, advantages & short board of Anlong County, this paper puts forward that, the WholeRegion Water Planning can lead the integrated development of Anlong’s LargeWater Economy, and presents a demonstration effect of “Anlong model”.
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