| 1980年以来中国农地利用变化的区域差异 |
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| 引用本文： | 刘成武,李秀彬.1980年以来中国农地利用变化的区域差异[J].地理学报(英文版),2006,16(3). |
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| 作者姓名： | 刘成武 李秀彬 |
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| 作者单位： | 中国科学院地理科学与资源研究所 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，欧盟资助项目，湖北省自然科学基金，湖北省教育厅资助项目 |
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| 摘 要： | The study of land use change and its driving mechanism has become the focus since the research of land use/land cover change (LUCC) became one of the important areas of Global Environmental Change (GEC) researches in the 1990s (Turner, 1994). Scholars mai…
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Regional disparity in the changes of agricultural land use intensity in China during 1980-2002 |
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| LIU Chengwu,LI Xiubin.Regional disparity in the changes of agricultural land use intensity in China during 1980-2002[J].Journal of Geographical Sciences,2006,16(3). |
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| Authors: | LIU Chengwu LI Xiubin |
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| Abstract: | Based on the cost-benefit data (1980-2002) of farm products and China Agriculture Yearbooks,this paper studies the regional disparity in the changes of the agricultural land use in China during the period 1980-2002 from three aspects such as the degree of intensity, the sown area and the abandoned farmland. The results show that: (1) The degree of intensity of land use in the western region during 1980-2000 has a strong uptrend, but in the eastern and central regions the degree of intensity descends obviously and has shown a continuous downtrend since 1997. (2) The total sown area shrinks notably in the eastern region, while it enlarges constantly in the western region. (3) The sown area in the eastern,central and western regions has gone through a similar cyclic process: down (1980-1985)-up (1985-1991)-down (1991-1994)-up (1994-1999)-down (1999-2002). However, there are obvious differences in amplitude variation and tendency among them. The sown area has shrunk in the eastern region and expanded in the central and western regions especially before 1999. (4) The most cases of abandoned farmland are reported in the central region, the second in the eastern region and the least in the western region. The abandonment phenomena chiefly occurred during 1992-1995 in the eastem region,and during 1998-2002 in the central region. |
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| Keywords: | China agricultural land use the degree of intensity sown area abandonment of farmland regional disparity |
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