[1]RONG Lianwei,SHI Xueyi,GAO Qi,et al.Dynamic Evaluation and Prediction on Land Ecological Security in Hilly Loess Plateau[J].Research of Soil and Water Conservation,2015,22(03):210-216.
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Dynamic Evaluation and Prediction on Land Ecological Security in Hilly Loess Plateau
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 03
Page number:
210-216
Column:
Public date:
2015-06-28
- Title:
- Dynamic Evaluation and Prediction on Land Ecological Security in Hilly Loess Plateau
- Keywords:
- land ecological security; PSR model; SPA; hilly Loess Plateau
- CLC:
- X826;F301.2
- DOI:
- -
- Abstract:
- In this paper, the basic data of land ecological security from 2001 to 2010 in Jincheng City were used. The dynamic evaluation index system of land ecological security was constructed with PSR framework model. Principal component analysis was used to determine the index weight. Based on the above methods, this paper evaluated the land ecological security in Jincheng City. Otherwise, the future land ecological security was predicted using GM(1,1) model. The results showed that the land ecological security integrated value of Jincheng rose overall, the land ecological security level changed from Ⅱ in 2001 toⅢ in 2010, the land ecological security status transformed from the sensitive status in 2001 to less safe state in 2010, the spatial differentiation of land ecological security in Jincheng City was significant. Because different county has different levels of social and economic development, natural conditions, level of environmental investment, land use structure and industrial distribution, the city spatial distribution was diverse and the evolution of land ecological security pattern was heterogenous. This study provided a good method for dynamic evaluation of land ecological security in the hilly Loess Plateau, and provided the way to make effective policies for ecological environment and carry out land consolidation.
- References:
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1900-01-01