[1]XU Hui,LEI Guo-ping,CUI Deng-pan,et al.Study on Evaluation for Ecological Security of Cultivated Land -A Case Study of Ning’an City in Heilongjiang Province[J].Research of Soil and Water Conservation,2011,18(06):180-184,189.
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Study on Evaluation for Ecological Security of Cultivated Land -A Case Study of Ning’an City in Heilongjiang Province
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
18
Number of periods:
2011 06
Page number:
180-184,189
Column:
Public date:
2011-12-20
- Title:
- Study on Evaluation for Ecological Security of Cultivated Land -A Case Study of Ning’an City in Heilongjiang Province
- Keywords:
- cultivated land ecological security; combination weighting method; evaluation index system; multi-factor comprehensive evaluation model; Ning’an City
- CLC:
- F323.22
- DOI:
- -
- Abstract:
- The ecological security of cultivated land is related to sustainable development and food security. Ning’an City in Heilongjiang Province was chosen as study area in this paper. Evaluation index system which affects cultivated land ecological security was constructed based on natural factors, economic factors and social factors. The optimal combination weighting method was used to determine index weights and multi-factor comprehensive evaluation method was adopted to quantitatively evaluate and analyze ecological security of cultivated land in Ning’an City from 2000 to 2009. The results show that: the level of the cultivated land ecological security in Ning’an City is the ’U’-type development stage of the ’relatively safe-sensitive-risk-sensitive’, and the cultivated land ecological security degree is relatively low in general, among which the cultivated land ecological security of Ning’an City was at a relatively safe state in 2000-2001; the cultivated land ecological security was at a sensitive level in 2002-2003; the cultivated land ecological security was at the level of risk in 2004-2006; the cultivated land ecological security have a certain increase during 2007-2009, but still at a sensitive level. According to the analysis results, this paper proposes some related suggestions to increase the level of ecological security of cultivated land of Ning’an City.
- References:
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1900-01-01