河南省耕地变化及其人文驱动力研究

Study on Cultivated Land Changes and Its Human Driving Forces in He’nan Province

根据河南省历年耕地及其相关统计数据,对河南省耕地时间(数量和质量)、空间变化和驱动因子进行了深入分析。结果显示:57 a期间,耕地总量自1954年最高峰9.06万km2以来,整体上呈逐年减少趋势;1984~2005年耕地标准面积和标准系数均呈现波动增长趋势;耕地空间分布重心整体上向东南方向变化;采用主成分分析方法,得出影响河南省耕地变化的驱动力归纳为农业科技进步、社会发展水平和经济发展水平。

Based on cultivated land and related social economic statistical data in 1949~2005,trend of cultivated land and its driving forces in He'nan province was analyzed.It was found that the biggest area was 9.06×104 km2 in 1954,the total area of land was reducing since 1954.Standard coefficient and area of cultivated land was fluctuant increasing from 1984 to 2005 and the relative coefficient was 0.988.The change trend of cultivated land gravity center is southeast.By using principal components analysis,the results showed that social development and economic development are the main human factors affecting cultivated land change with the progress of sci-tech in agriculture.