| 北京市耕地资源动态变化及其驱动力分析 |
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| 引用本文： | 李论,金建君,江冲.北京市耕地资源动态变化及其驱动力分析[J].安徽农业科学,2011,39(29):18218-18220. |
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| 作者姓名： | 李论 金建君 江冲 |
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| 作者单位： | 北京师范大学资源学院地表过程与资源生态国家重点实验室,北京,100875 |
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| 基金项目： | 北京市优秀人才项目(2010D009012000003); 中央高校基本科研业务费专项资金资助; 国家社会科学基金资助项目(09CJY066) |
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| 摘 要： | 利用1991～2008年北京市统计资料,分析了北京市耕地资源的时空变化特征,运用主成分分析法研究了影响北京市耕地数量变化的主要驱动因素。结果表明,北京市耕地面积总体上呈减少趋势,耕地年均减少2.43%;人均耕地面积也呈逐年下降趋势;影响北京市耕地资源数量减少的主要驱动因素在于人口增长、经济发展和城市化发展。
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| 关 键 词： | 耕地资源 动态变化 驱动力 北京市 |
Analysis on Dynamic Changes of Cultivated Land Resources and Its Driving Forces in Beijing |
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| LI Lun et al.Analysis on Dynamic Changes of Cultivated Land Resources and Its Driving Forces in Beijing[J].Journal of Anhui Agricultural Sciences,2011,39(29):18218-18220. |
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| Authors: | LI Lun |
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| Institution: | LI Lun et al(College of Resources Science and Technology,Beijing Normal University,State Key Laboratory of Earth Surface Processes and Resource Ecology,Beijing 100875) |
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| Abstract: | Using statistical data of Beijing from 1991 to 2008,temporal & spatial variation characteristics of cultivated land resources in Beijing are analyzed.The driving forces of cultivated land area change are analyzed using the principal component analysis method.The results show that the area of cultivated land in Beijing has been decreasing.The yearly decreasing rate is about 2.43%.The area of cultivated land resources per capita has been decreasing.The main driving forces of cultivated land decrease in Beijin... |
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| Keywords: | Cultivated land resources Dynamic change Driving forces Beijing |
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