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《Scientia Geographica Sinica》 2004-01
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Analysis of Dynamic Changes and Driving Forces of Cultivated Land in Hunan Province

XIONG Ying~1 ,WANG Ke-Lin~1 ,LU Hui-Hong~2 ,XU Lian-Fang~3 (1.The Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125; 2.Station of Agricultural Eco-environment Monitoring and Managing, Changsha, Hunan 410005; 3.College of Resources and Environment Science, Hunan Normal University, Changsha, Hunan 4100)  
According to statistical and survey data from 1949 to 1999, dynamic changes of quantitative and regional differences of cultivated land in Hunan Province during the last 50 years are analysed. Based on which, the mechanism driving forces for the effect of the economy and population on the change in the cultivated land ares is dealt with in this article .The results indicates that the general trend of cultivated land during the past 50 years was decreasing and regional differences of cultivated land was very notable . The idiographic factors influencing the dynamic change of cultivated land quantity include: (1)the increasingly strong conflict from non-agricultural activities and construction,such as urbanization,industrialization, township and village infrastucture construction land;(2)the farmer′s incomes from planting is much lower than the output for the means of agricultural production,casuing jeopardizing farmer′s enthusiasm in cultivation activities and adjusting the structure of utilization in cultivatied land;(3)some inappropriate points in the present policies and land management and so on. In addition, the economic growth is the dominant macro-driving factor in decrease of cultivated land area in Hunan Province. The rapid decrease of cultivated land area coincided in time with the overheated economic growth resulting from the direct investment in fixed assets. The spatial distribution patterns for the decrease in arable land matched the differences in speed and scale of economic growth between different regions of the Hunan.
【Fund】: 中国科学院知识创新工程重要方向项目 (KZCX2 -SW -4 15 )资助
【CateGory Index】: F323.211
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