RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2021, Vol. 30 >> Issue (3): 758-769.doi: 10.11870/cjlyzyyhj202103022

Previous Articles    

Identification of Concurrent Heat Waves and Droughts Risk and Its Influencing Factors in North and South of Qinling-Huaihe Region

ZHANG Yu-feng, LI Shuang-shuang, YAN Jun-ping   

  1. (School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119,  China)
  • Online:2021-03-20 Published:2021-04-07

Abstract: The interaction of multi-hazards has attracted much attention in recent years, especially the concurrent of heat waves and droughts, that improved the impacts on the agriculture, ecosystem and human daily life. In this study, based on meteorological data from 197 meteorological stations for the period of 1960-2018, we constructed a conceptual framework including the concurrent heat waves and droughts hazard, exposure, and vulnerability. Meanwhile, the spatiotemporal variation of the concurrent heat waves and droughts was analyzed in north and south of Qinling-Huaihe region. More importantly, we used path analysis to investigate the relationship between hazard, exposure and vulnerability based on socioeconomic and demographic data. The results showed, (1) during 1960 to 2018, the concurrent heat waves and droughts presented the spatiotemporal cluster by using bipartite networks in study region. In detailed, one distinct phase was identified that the concurrency of heat waves and droughts is significant from 1970s to the early 1980s, and there are three spatial cluster regions, i.e. Huaihe Plain, the middle and lower reaches of the Yangtze River, Hill areas of eastern Sichuan and Wushan Mountains in central China. It should be noted that the concurrency for heat waves and droughts weakened gradually after 1990s; (2) The risk of concurrent of heat waves and droughts showed a significant pattern of spatial variation. About 70% of the top 30 cities with the greatest risk located in Huaihe Plain and the middle and lower reaches of the Yangtze River and 30% covered in Sichuan Basin, led by the dense population and economy, which meant greater exposure and the higher risk of the concurrent heat waves and droughts hazard; (3)In the term of influence factors, the path analysis confirmed that the negative relationship between susceptibility and coping capacity, and further verified that hazard, exposure correlated negatively with concurrent risk. These results implied that greater coping capacity was significant driving factor of lower concurrent risk in area with the more concurrent of heat waves and droughts and exposure.

No related articles found!
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] XIE Xiao-nan,XU Peng-zhu, QIN Bo-qiang. ANALYSIS ON PROBLEMS AND COUNTERMEASURES OFLANDSURFACE SUBSIDENCE IN TAILAKE BASIN[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2005, 14(1): 125 -131 .
[2] TIAN Xiao-si, CHEN Jie, ZHU Cheng, ZHU Tong-lin. MODELING THE LEVEL OF ECONOMIC GROWTH AND THE INDUSTRIAL "THREE WASTE"|POLLUTION  IN NANJING CITY[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2007, 16(4): 410 .
[3] HUANG Liang1,2,ZHANG Guosen3. SEASONAL VARIATIONS OF BLACK CARBON IN XULIUJING WATER OF THE YANGTZE RIVER AND THEIR ENVIRONMENTAL IMPLICATIONS[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2014, 23(09): 1202 .
[4] WANG Kai, WANG Yujie, WANG Bin, ZHANG Shouhong, WANG Yunqi, WANG Chenfeng. Study on Soil Detachment Rate on a YellowSoil Hillslope[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2018, 27(09): 2114 -2121 .
[5] LIU Ji, SUN Zhouliang, ZHANG Te, CHENG Xiong, DONG Xiaohua, TAN Xin. Hydrological Evaluations of Runoff Simulations Based on Multiple Satellite Precipitation Products over the Huayuan Catchment[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2018, 27(11): 2558 -2567 .
[6] XIE Wu-san, WU Rong , DING Xiao-jun. Risk Assessment and Early Warning of Urban Waterlogging Based on FloodArea Model [J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2018, 27(12): 2848 -2855 .
[7] HU Bo-ting, LIU Jiang, WANG Wen-ling, FENG Yan. Temporal Spatial Differences of Water Resources Vulnerability in the Yarlung Zangbo River Basin Based on the Characteristics of Flood and Drought Disasters[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2019, 28(05): 1092 -1101 .
[8] CHENG Jun-xiang, XU Li-gang, JIANG Jia-hu, ZHU Qian-de, YU Dan-dan. Changes in Streamflow at the Outlet of Dongting Lake and Their Impacts on Ecosystems[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2019, 28(05): 1225 -1234 .
[9] LIU Song, SHE Dun-xian, ZHANG Li-ping, DING Kai-xi, GUO Meng-yao, CHEN Sen-lin. Global Sensitivity Analysis of Hydrological Model Parameters Based on Morris and Sobol Methods[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2019, 28(06): 1296 -1303 .
[10] CAO Yan-min, MAO De-hua, DENG Mei-rong, ZHANG Jing-ya. Assessment of Eco-Hydrological Regime of Daily Regulating Power Station Reservoir Area:Taking Hengyang Station on Xiangjiang River as An Example[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2019, 28(07): 1602 -1611 .