RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2017, Vol. 26 >> Issue (04): 624-630.doi: 10.11870/cjlyzyyhj201704016

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STUDY ON SPATIAL VARIATION AND CONTROL MEASURES OF ECOLOGICAL RED LINE IN ROCKY DESERTIFICATION SENSITIVE AREA OF GUIZHOU PROVINCE

XIE Ya-ting1,2, ZHOU Zhong-fa1,2, YAN Li-hui1,2, NIU Ying-chao1,2, WANG Li1,2   

  1. 1. School of Karst Science, Guizhou Normal University, Guiyang 550001, China;
    2. State Engineering Technology Institute for Karst Desertification Control, Guiyang 550001, China
  • Received:2016-08-29 Revised:2016-11-28 Online:2017-04-20
  • Supported by:
    National Program on Key Basic Research Project of China (973 Program)(2012CB723202);National Natural Science Foundation of China (41301504);The Major Application Foundation Research Project of Guizhou Province (Guizhou S&T Contract JZ 2014-200201);Guizhou Provincial Development and Reform Commission Commissioned-Guizhou Province in 2015 the Provincial Energy-saving Emission Reduction Special Funds Investment Projects (Guizhou NDRC Environmental Assistance Project 2015-1612)

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Abstract: The evolution of rocky desertification in Guizhou has curbed the ecological security demands of the Yangtze River and Pearl River Basins. In response to the national ecological environment protection and restoration policies, aiming at strengthening the upper reaches of the Yangtze River ecological protection work to curb the deterioration of ecological environment in Guizhou Province, this study established sensitivity evaluation index system and the evaluation model to evaluate the sensitivity of rocky desertification in Guizhou province by the remote sensing and GIS technology, according to the guideline of ecological red line delimitation technology guide (2015.06) and the typical ecological environmental problems of karst rocky desertification in Guizhou Province. The ecological red line of sensitive area of rocky desertification was defined, and the ecological red line of rocky desertification sensitive area in Guizhou Province was quantitatively revealed and the law of regional differentiation was put forward. And the concrete control measures were put forward according to the actual situation of rocky desertification control in Guizhou Province. The results showed that:(1) In 2011, the susceptibility of rocky desertification in Guizhou province is 36227.83 km2, which accounts for 32.23% of the total area of karst landforms, and the distribution of the total distribution is striped. (2) The spatial distribution of the rocky desertification sensitive area is related to the rocky desertification. There was a positive correlation between the proportion of land and the proportion of the above sensitive areas when excluding non-obvious rocky desertification, potential rocky desertification, insensitive area and mild sensitive area. (3) The ecological red line area in the rocky desertification sensitive area of Guizhou Province is 6814.25 km2, accounting for 3.87% of the total land area of the whole province. It is mainly composed of broken patches, which are concentrated in the northern, southern and western regions of Guizhou. (4) The control measures of ecological red line in the rocky desertification sensitive area should be parallel to the control and protection, mainly in the protection, and at the same time strengthen the comprehensive control of the rocky desertification sensitive area and the ecological protection policy system.

Key words: ecological red line, rocky desertification sensitive area, spatial variation, control measures

CLC Number: 

  • X171.1
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