土地利用转型时空特征及其影响因素研究——基于江苏北中南三县的比较分析

Spatio-temporal Patterns of Land Use Transitions and Related Influencing Factors--Comparative Analysis Based on Three Counties of North,Middle and South Jiangsu Province,China

基于江苏省北中南的赣榆、仪征和常熟三县2009年、2012年和2016年三期遥感影像、土地利用变更调查数据及社会经济统计数据,运用GIS和SPSS分析了三县2009~2016年土地利用转型的时空特征,并对三县五种主要土地利用类型转换的影响因素进行辨识。结果表明:(1)土地利用转型的时空特征方面,三县的主要土地利用类型转换和时空分布特征差异显著,三县的建设用地均呈增加趋势,但增加的主要来源不同。(2)土地利用转型的影响因素方面,三县土地利用类型转换是多种人文和自然因素共同作用的结果,人均GDP、农民人均纯收入、第二产业增加值、第三产业增加值、距主要铁路距离及距主要河流距离是五种土地利用转型的主要驱动因子,但三县不同土地利用类型转换的主要影响因素存在差异。通过对不同区域土地利用转型的时空特征及影响因素进行对比研究,能够辨识土地利用类型转换的主要驱动因子,对土地利用的可持续发展具有重要意义。

Based on remote sensing images,land utilization alteration data and socioeconomic data in 2009,2012 and2016 in Ganyu,Yizheng and Changshu of Jiangsu Province,we analyzed the spatio-temporal characteristics of land use transitions and their influencing factors by using GIS and SPSS during 2009-2016.The results showed that there were significant differences in the main land use type conversion and spatio-temporal distribution characteristics among the three counties.The construction land in the three counties showed an increasing trend,and its main reasons were different.The transformation of five major land use types were the results of combined effects of natural,social and economic factors.GDP per capita,net income per capita of rural residents,added values of secondary and tertiary industry,the distance from the main railway and the distance from the main rivers were the main influencing factors.But the main influencing factors of land use transitions were different among the three regions.The results could identify the main drivers of land use type conversion,and be of great significance for the sustainable development of land use.