江苏省耕地资源时空变化及驱动力研究

Research on Spatial and Temporal Characteristics and Driving Forces of the Cultivated Land Change in Jiangsu Province

选取1999-2006年为研究时段,对此期间江苏省耕地资源的数量变化特征和区域差异进行了分析,并借鉴人口地理学中人口重心的计算方法对其分布重心的转移趋势进行了计算。在此基础上,还利用与耕地变化相关的一系列统计数据,运用主成分分析方法,对江苏省近年来耕地变化的驱动因素进行了研究,发现影响江苏省耕地资源变化的因素可以归纳为社会经济发展因素、农业科技进步以及人口系统压力3个方面。

The spatial and temporal characteristics of the cultivated land change of Jiangsu Province during 1999 and 2006 were studied,and its barycenter change according to the calculation of population barycenter in population geography was calculated.Then,the driving factors of the cultivated land change were analyzed using principal component analysis based on a series of data related to cultivated land change.The factors affecting the cultivated land change of Jiangsu Province could be summarized as three aspects,including socio-economic development,agricultural scientific and technological progress and population pressure.