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.
耕地生态安全评价研究——以黑龙江省宁安市为例
- 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
- 分类号:
- F323.22
- 摘要:
- 耕地生态安全关系到可持续发展和粮食安全，以黑龙江省宁安市为研究区，从自然因素、经济因素和社会因素3方面构建了影响耕地生态安全的评价指标体系。运用组合赋权法确定其指标权重，采用多因素综合评价法，对宁安市2000-2009年耕地生态安全进行定量评价及分析。结果表明：2000-2009年宁安市耕地生态安全水平处于“较安全-敏感-风险-敏感”的“U”型发展阶段，且总体上耕地生态安全程度相对较低，其中2000-2001年宁安市的耕地生态安全处于较安全状态，2002-2003年处于敏感水平，2004-2006年处于风险水平，2007-2009年耕地生态安全状况有所回升，但仍处于敏感水平。依据分析结果，提出了提高宁安市耕地生态安全水平的相关建议。
- 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.
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备注/Memo
收稿日期:2011-4-12;改回日期:2011-5-24。
基金项目:国家科技支撑计划项目(2008BAD96B02)
作者简介:徐辉(1986- )，男，河南周口人，硕士，研究方向为土地利用与土地生态。E-mail：xuhui469@163.com
通讯作者:雷国平(1963- )，男，辽宁沈阳人，博士，教授，研究方向为土地利用与土地规划。E-mail：guopinglei@126.com