耕地与建设用地变化驱动力比较分析

基于南昌市新建县1991~2005年土地利用和自然社会经济数据,采用数理统计分析方法,定量综合探讨耕地和建设用地变化驱动力。结果表明,社会经济因子对耕地、建设用地变化驱动方向和强弱顺序表现差异性;驱动因素同一性主要表现在,经济发展状况、城镇化水平和人口增长是耕地和建设用地变化的驱动因子主分量;相同驱动因素的影响敏感性也表现出差异性。

Comparative Analysis on Driving Forces of Cultivated Land and Construction Land Use Change

In order to discover the similarities and differences of driving forces on cultivated land and construction land changes,based on year-by-year renew investigation and statistical data involving nature,society and economy from 1991 to 2005 in Xinjian County of Nanchang City,driving forces of cultivated land and construction land use changes were analyzed synthetically and quantitatively in terms of mathematical statistics methods.Results indicated that driving factors display difference.Socio-economic factors make negative urge on cultivated land use change,relatively,and positive urge on construction land use change.And the sequences in strength of each socio-economic driving force on cultivated land or construction land show distinction.The similarity was manifested mainly in that the economic development,urbanization level and population growth are main components of all driving factors on cultivated land or construction land.Identically driving main components also displayed discrepancy in order of strength.For cultivated land,the sequence is economic development,population growth and urbanization.However,for construction land,that is economic development,urbanization and population growth.The research results contribute to knowing quantitatively and comparatively driving forces on cultivated land and construction land,and point out a way for land use change mechanism research.