摘要
采用广东省56年来的耕地统计数据,对建国以来广东省耕地数量变化的趋势进行了分析,指出耕地数量的变化呈现出逐年减少的趋势;采用近30年来的社会经济统计数据,应用主成分分析方法定量地分析了影响耕地变化的因子,得出经济因素、农业生产力因素是引起耕地变化最主要的因子。
According to the statistical data of cultivated land of Guangdong province during the last 56 years, the trends of the quantity change on cultivated land are discussed in this paper. It is showed that the quantity of cultivated land has been reduced year by year. By using the society and economic statistical data from 1978- 2005,and combing the principal component analysis method ,it is obtained that the economic factor and the productive capacity of agriculture factor are the main factors which have an importing effect on the the change of the cultivated land.
出处
《国土与自然资源研究》
2008年第3期55-57,共3页
Territory & Natural Resources Study
关键词
广东省
耕地变化
影响因子
Guangdong Province
change of cultivated land
driving force.
