THE LAND USE/COVER CHANGE AND ITS ECO-ENVIRONMENTAL EFFECTS THE INTERACTION MECHANISM IN JIANSANJIANG
以黑龙江建三江垦区为对象，利用1989和2006年遥感影像分析土地利用/覆盖变化，发现水田和草地变化最快，湿地减少导致负面环境效应，揭示土地利用与生态环境的相互影响。
This paper selects Jiansanjiang reclamation area,which is in Heilongjiang province as the study area,with TM remote sensing images of 1989 and 2006 as the main source of information.Use the method of remote sensing and geographic information systems combining to extract the land use / cover information.Calculating land use /cover change degrees and analyzing the overall characteristics by mathematical mathematical model,selection the ecological contributing ratios paraneters and the eco-environment value of land use changes.Reflects and reverls the land use /cover change and ecological response.The result indicates that land use / cover change and ecological environment interaction and mutual influence.The land use / cover has undergone great changes from 1989 to 2006,changes in paddy fields and grassland cover types most frequently and the fastest,construction land change is the slowest.During this time,the ecological environment either deterioration or improving.In the change of various land use types,the ecological contribution of wetlands to reduce is the maximum,resulting in negative environmental effects.Research shows that people irrational use of land,will cause deterioration of ecological environment,so that the original land use / cover means being forced to have changed.