基于多模型测度的内蒙古土地利用动态变化分析

以1997、2005和2014年3期土地利用数据为基础,采用多模型测度的分析方法,对内蒙古自治区土地利用类型的动态变化幅度、变化速度及状态趋势进行定量分析。从变化幅度上看,近20年内蒙古自治区土地利用类型发生了明显的变化,草地面积大幅减少,耕地、林地、建设用地、水域和其他土地面积有所增加,其中林地和其他土地增幅较大,园地保持相对稳定;从动态变化上看,内蒙古自治区土地利用动态度变化具有明显的阶段性特征,基本上各用地类型在2005—2014阶段年均变化激烈于1997—2005阶段;从状态趋势上看,整个研究阶段内蒙古土地利用状态指数为0.35,表现为小幅扩张的变化趋势。未来内蒙古土地利用格局将随着人类活动的加剧和自然因素的作用会发生新的变化。

Dymanic change analysis of land use in Inner Mongolia based on multiple model comprehensive measure

Multiple model comprehensive measure is adopted to quantitatively analysis the dymanic change amplitude,change speed and statues trend of land use types in Inner Mongolia over the recent 18 years.Ihe main findings are as follows:From 1997 to 2014,the main types of land use in Inner Mongolia are grassland,garden land,farmland,woodland,water area,construction land,and unused land,among which the grassland is drastically reduced,woodland,farmland and water area are gradually increased.Meanwhile,the garden land remains relatively stable.From the dynamic point of view,the Inner Mongolia autonomous region land use dynamic change has obvious stage characteristics,which basically the degree on the various types of land use changes during 2005-2014 is more heated then 1997-2005;From the perspective of trend status trend,the indexes of land use status of the entire study stage of Inner Mongolia is 0.35,and the change trend of performance showed a modest expansion.The future land use pattern will be changed further with the intensification of human activities and the interaction between natural factors in Inner Mongolia.This study aims to put forward the best model to use land resources reasonably and provide a scientific basis for regional sustainable development.