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 。
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.
出处
《经济地理》
CSSCI
北大核心
2002年第4期440-443,447,共5页
Economic Geography
关键词
江阴市
耕地
主成分分析
耕地利用效率
耕地管理
Jiangyin City
cultivated land
driving forces
principal components analysis
using efficiency of cultivated land
