[1]HAN Lei,KONG Xiangbin,GUO Hongfeng,et al.Study on Land Eco-security Evaluation of Ecological Sensitive Area in Southwest Mountains -A Case Study in Xiushan County[J].Research of Soil and Water Conservation,2015,22(01):229-234,240.
Copy
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 01
Page number:
229-234,240
Column:
Public date:
2015-02-28
- Title:
-
Study on Land Eco-security Evaluation of Ecological Sensitive Area in Southwest Mountains -A Case Study in Xiushan County
- Author(s):
-
HAN Lei1,2,3, KONG Xiangbin3, GUO Hongfeng1,2,3, LUO Zhuo1,2
-
1. Chongqing Institute of Surveying and Planning for Land Resources and Housing, Chongqing 400020, China;
2. Chongqing Research Center of the Key Laboratory of Land Use, Ministry of Land and Resources, Chongqing 400020, China;
3. Department of Land
-
- Keywords:
-
land eco-security evaluation; ecological sensitive area of southwest mountains; county level; gird; Xiushan County
- CLC:
-
X171;F301.2
- DOI:
-
-
- Abstract:
-
The purpose of the paper is to explore a precise evaluation approach for land eco-security researches for ecological sensitive area of southwest mountains via using digital terrain model (DEM), MODIS remote sensing data and investigation of land-use status, support under the geographical information system (GIS)and based on the analysis and evaluation of the land eco-security in Xiushan County and the grid data. The result indicated that the land eco-system in Xiushan County was divided into four grades (safe grade, accounting for 21.23% of total area; relatively safe grade, 43.97%; prewarning grade, 21.81%; intermediate warning grade,4.99%). The safe grade was mainly in the central plain hilly region; the relatively safe grade was mainly in relatively low altitude and relatively small slope area of the county; the prewarning grade was mainly in the eastern and northern low mountain area, or at the relative low altitude of the eastern and northern high mountain area; the intermediate warning grade was mainly in the eastern and northern high mountain area. It was concluded that the condition of land eco-security in Xiushan County was better as a whole and it was in accordance with the actual situation.And in the future some measures should be taken to optimize land use structure and intensify orchard management in order to avoid water and soil erosion, promote soil fertility and enhance the health development and stability of the local land ecosystem.