| Regional disparity in the changes of agricultura land use intensity in China during 1980-2002 |
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| 作者姓名： | LIU Chengwu LI Xiubin |
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| 作者单位： | [1]Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China [2]Department of Town Planning and Resources Sciences, Xianning College, Xianning 437005, China |
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| 基金项目： | National Natural Science Foundation of China, No.40571003; European Committee Item, No. ICA4-CT-2001-10085; Provincial Natural Foundation of Hubei, No.2005ABA008; Foundation of Hubei Provincial Education Department, No.D200528002 |
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| 摘 要： | 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 westena 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 eastern region, and during 1998-2002 in the central region.
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| 关 键 词： | 中国 农地利用 区域差异 土地资源 |
| 收稿时间： | 2006-03-26 |
| 修稿时间： | 2006-03-262006-05-10 |
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 agricultura land use intensity in China during 1980-2002[J].Journal of Geographical Sciences,2006,16(3):286-292. |
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| Authors: | Chengwu Liu Xiubin Li |
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| Institution: | (1) Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing, 100101, China;(2) Department of Town Planning and Resources Sciences, Xianning College, Xianning, 437005, China |
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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 eastern region, and during 1998–2002 in the central region.
Foundation: National Natural Science Foundation of China, No.40571003; European Committee Item, No.ICA4-CT-2001-10085; Provincial Natural
Foundation of Hubei, No.2005ABA008; Foundation of Hubei Provincial Education Department, No.D200528002
Author: Liu Chengwu (1966-), Ph.D. and Professor, specialized in land use and land cover change. |
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| Keywords: | China agricultural land use the degree of intensity sown area abandonment of farmland regional disparity |
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