| 西北干旱区耕地扩张原因的实证分析 |
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| 引用本文： | 朱会义,李义.西北干旱区耕地扩张原因的实证分析[J].地理科学进展,2011,30(5):615-620. |
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| 作者姓名： | 朱会义 李义 |
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| 作者单位： | 1. 中国科学院地理科学与资源研究所,北京,100101
2. 中国科学院地理科学与资源研究所,北京,100101;中国科学院研究生院,北京,100049 |
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| 基金项目： | 国家重点基础研究计划项目(2009CB421307) |
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| 摘 要： | 近10余年来,在全国耕地面积持续减少的背景下,西北干旱区的耕地面积却明显增加.区域耕地的这一逆向变化,不仅改变了中国的耕地分布格局,同时也加剧了西北干旱区的水资源冲突和荒漠化进程.现有研究中,西北干旱区的耕地扩张往往被理解为区域人口增长、技术进步、政策激励的结果,但这些认识主要来自于统计相关分析和经验判断,还缺乏必要的...
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| 关 键 词： | 土地利用变化 人口增长 技术进步 政策激励 西北干旱区 新疆 |
An Empirical Analysis of the Causes of Farmland Expansion in Northwest China |
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| ZHU Huiyi,LI Yi.An Empirical Analysis of the Causes of Farmland Expansion in Northwest China[J].Progress in Geography,2011,30(5):615-620. |
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| Authors: | ZHU Huiyi LI Yi |
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| Institution: | ZHU Huiyi1,LI Yi1,2(1.Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China,2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | In the past decade,farmland expanded remarkably in many regions in the arid Northwest China.These changes occurred in the context of rapid loss of farmland and exacerbated degradation of local environ-ments in China.Therefore,better understanding their causes is helpful for understanding land use changes in China and crucial for developing effective conservation and ecosystem management plans.In literature,it is sug-gested that local population growth,technological progress in agriculture,and policy prompti... |
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| Keywords: | farmland expansion population growth technological progress policy prompting Northwest Chi na Xinjiang |
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