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江阴市耕地变化驱动因素及耕地利用效率定量研究
引用本文:俞勇军,陆玉麒.江阴市耕地变化驱动因素及耕地利用效率定量研究[J].经济地理,2002,22(4):440-443,447.
作者姓名:俞勇军  陆玉麒
作者单位:南京师范大学地理科学学院,中国江苏,南京,210097
摘    要:江阴市耕地呈逐年不断减少的趋势,而且耕地减少与经济发展和人口增长均存在较好的相关性。本文利用主成分分析法,探寻江阴耕地减少的驱动因素,在此基础上,根据因子分析法的主因子载荷系数的含义,对江阴市耕地利用效率进行了估算。

关 键 词:江阴市  耕地  主成分分析  耕地利用效率  耕地管理
文章编号:1000-8462(2002)04-0440-04

QUANTITATIVE STUSIES ON THE USING EFFICIENCY AND DRIVING FACTORS OF CHANGING OF CULTIVATED LAND IN JIANGYIN CITY
YU Yong-jun,LU Yu-qi.QUANTITATIVE STUSIES ON THE USING EFFICIENCY AND DRIVING FACTORS OF CHANGING OF CULTIVATED LAND IN JIANGYIN CITY[J].Economic Geography,2002,22(4):440-443,447.
Authors:YU Yong-jun  LU Yu-qi
Abstract:The quantity of cultivated land are reducing constantly in Jiangyin city.The movement of cultivated land is marked correlation to the development of economy and increase of population , studied by correlation analysis.The article uses the method of principal components analysis to search for the driving forces of culvated land reducing in Jiangyin city.Then it estimates the using efficiency of cultivated land basing on the meaning of factorial loading.At last the article advances the strategies of protecting cultivated land.
Keywords:Jiangyin City  cultivated land  driving forces  principal components analysis  using efficiency of cultivated land
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