摘要
利用四川省各地、市近12年的耕地统计数据和相关社会经济资料,从耕地的数量变化和空间变化等方面,宏观分析了四川省耕地时空动态变化的趋势和规律。应用相关分析和主成分分析相结合,定量分析了耕地变化的驱动因子,揭示了耕地变化的驱动机制。结果表明,经济发展动态、人口系统压力和农业科技进步是影响四川省耕地变化的3类主要驱动因子。
According to the statistical and survey date at provincial and county levels, the trend of cultivated land change, the spatial difference, and the driving forces of cultivated land change in Sichuan province during the last 12 years were discussed in this paper. As a result of the principal component analysis and correlation analysis, the twelve driving force variables affecting arable land changes were analyzed which could be classified into three types： the dynamic development of economy, pressure of population system and progress of science and technology in agriculture.
出处
《广东农业科学》
CAS
CSCD
北大核心
2011年第23期164-166,170,共4页
Guangdong Agricultural Sciences
关键词
耕地变化
四川省
驱动因子
cultivated land change
Sichuan province
driving forces
