| 宁夏生态安全预测与评价研究 |
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| 引用本文： | 张 磊,任 贤.宁夏生态安全预测与评价研究[J].中国农业资源与区划,2010,31(3):22-26. |
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| 作者姓名： | 张 磊 任 贤 |
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| 作者单位： | 北方民族大学生物科学与工程学院,宁夏,银川,750021 |
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| 摘 要： | 生态足迹方法目前被广泛地应用于区域生态安全的研究中。该文通过生态足迹方法对宁夏回族自治区1985-2005年的人均生态足迹、生态承载力、生态赤字以及生态安全情况进行分析,结果表明:宁夏20年间人均生态足迹增长了近3倍,人均生态承载力减少率为29.60%。生态压力指数由0.6469上升到3.5508,增长了4.49倍,生态安全等级由1985年的Ⅱ级变为1990年的Ⅳ级,此后15年生态安全等级始终为Ⅳ级,处于极不安全状态。
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| 关 键 词： | 宁夏 生态安全 预测与评价 |
| 收稿时间： | 2009/10/29 0:00:00 |
PREDICTION AND ASSESSMENT ON THE ECOLOGICAL SECURITY OF NINGXIA |
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| Zhang Lei and Ren Xian.PREDICTION AND ASSESSMENT ON THE ECOLOGICAL SECURITY OF NINGXIA[J].Journal of China Agricultural Resources and Regional Planning,2010,31(3):22-26. |
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| Authors: | Zhang Lei and Ren Xian |
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| Institution: | (College of Biological Science and Engineering,the North University for Ethnics,Yinchuan,Ningxia 750021) |
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| Abstract: | The method of ecological footprint has been widely applied in studying on the regional ecological safety.This article,using the method of ecological footprint,analyzed per capita ecological footprint,ecological capacity,ecological deficit and ecological safety during 1985-2005 in Ningxia Hui Autonomous Region.The results showed that the per capita ecological footprint of Ningxia increased by 3 times during 20 years,while the per capita ecological capacity decreased 29.60%.Ecological pressure index of Ningxia increased from 0.6469 to 3.5508,increasing by almost 4.49 times.The grade of ecological security changed from gradeⅡ in 1985 to grade Ⅳ in 1990,and always kept grade Ⅳ from1990 to 2005,which showed an extremely unsafe state. |
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| Keywords: | Keywords Ningxia ecological safety prediction and assessment |
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