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| 基于PSR模型的艾比湖流域生态安全评价研究 |
| Ecological Security Evaluation of the Ebinur Lake Basin Based on the PSR Model |
| 投稿时间：2013-04-01 |
| DOI： |
| 中文关键词: PSR模型 生态安全评价 艾比湖流域 |
| 英文关键词: the model of PSR ecological security evaluation the Ebinur Lake basin |
| 基金项目:国家自然科学基金(41261051);新疆维吾尔自治区重点实验室“新疆干旱区湖泊环境与资源实验室”基金(XJDX0909-2010-08);新疆师范大学博士科研启动基金(xjnubs1005) |
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| 中文摘要: |
| 基于压力-状态-响应(PSR)概念模型,结合层次分析法并采用综合评价模型对艾比湖流域生态安全进行综合评价。研究结果表明:(1)在13项评价指标中,影响流域生态安全的主导因素为森林覆盖率、草地面积和水土流失治理面积,其所占权重均在0.1以上;(2)自2000—2010年以来,艾比湖流域生态安全指数由0.230 9增加至0.755 6,流域生态环境呈现良性发展趋势,生态安全状况有所好转。当地政府通过提高森林覆盖率、增加草地面积以及治理水土流失等措施,不断改善了该流域的自然生态环境。 |
| 英文摘要: |
| Based on the model of pressure-state-response(PSR), combining the method of analytic hierarchy process with the comprehensive evaluation model, we comprehensively evaluated the ecological safety of the Ebinur Lake basin. Research results showed that:(1)Of the 13 evaluation indexes, the forest coverage, grassland area and the area of water and soil conservation were all the dominant factors in ecological safety influence factors, their weights were above 0.1;(2)From year 2000 to 2010, the ecological safety index increased from 0.230 9 to 0.755 6 in the Ebinur Lake basin. The basin ecological environment presented benign development trend, ecological security situation im-proved. By increasing the forest cover rate, grassland area and controlling soil erosion, ecological environment of the river basin were im-proved. |
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