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[1]SHENG Dong,LI Gui-yuan,XU Yi-jun.Evaluation Index System of Ecological Security in the Watershed of Hu’nan Province[J].Research of Soil and Water Conservation,2010,17(02):58-63.

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Evaluation Index System of Ecological Security in the Watershed of Hu’nan Province

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 17 Number of periods: 2010 02 Page number: 58-63 Column: Public date: 2010-04-20

Title:: Evaluation Index System of Ecological Security in the Watershed of Hu’nan Province

Author(s):: SHENG Dong¹, LI Gui-yuan², XU Yi-jun²; 1. College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China;
2. Hu’nan Provincial Research Institute of Water Conservancy and Hydropower, Changsha 410007, China

Keywords:: watershed; ecological security; index system; Hu’nan province

CLC:: X171.4

DOI:: -

Abstract:: After collecting basic data of 11 small watersheds in Hu’nan province and considering the practical investigation, the selection of indexes for ecological security assessment for Eastern, Western and Southern Hu’nan province have been accomplished in this paper. Based on the composite characteristics of soil and water resources, ecological environment and society and economy, the integrated evaluation index system and assessment model on small watersheds in red soil region in Southern China were constructed through analytic hierarchy process method and expert consultation method and so on. In conclusion, the ecological security assessment of every watershed in Hu’nan is safe, the degree sequence is Western Hu’nan, Southern Hu’nan and Eastern Hu’nan. The distribution of integrated index of ecological security assessment on small watersheds has strong negative correlation with the distribution of rate of soil and water loss. The bigger the water lose rate was, the smaller the integrated index was. The main hindering factors are amount of soil erosion, rate of soil and water lose, per capita income and so on.

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