临沂市土地利用/土地覆被变化及其环境影响研究

Analysis of Land Use Changes and its Environmental Impacts in Linyi,Shandong Province

借助RS和ArcGIS的统计分析功能,得到了1987年和2010年两年土地利用数据,通过对比发现:在近20年的时间内,耕地和城乡建设用地是变化最为明显的两种用地类型,而且变化数值相当,探讨了引起两种用地类型变化的最主要的原因,即人口增长和经济发展,另外从引起土地利用变化的原因出发,定性地分析了土地利用变化带来的环境影响。

T his article obtains the land use data of the year of 1987 and of 2010 by means of RS and the statis-tical analysis of ArcGIS .Through comparative analysis ,it finds that ,the two most obvious changes types in land use are farmland and land for urban and ruralconstruction use in the past 20 -yearperiod ,and change values are considerable .Meanwhile ,the article briefly discusses the most important reasons causing the chan-ges of the two types of land use ,namely ,population grow th and economic development ,and then makes a qualitative analysis ofthe environmental effectsas a result of land use changes .