辽河流域土地利用/覆被变化

Land Use / Cover Change in Liao River Basin

［目的］研究辽河流域土地利用/覆被变化特征对分析辽河流域生态环境变化及其驱动力因素具有重要意义。［方法］基于2000~2010年辽河流域16期土地利用遥感数据，对辽河流域10年间土地利用/覆被变化进行定量分析。［结果］耕地、草地和建设用地面积增加，林地、水域和其他用地面积减少；土地利用信息熵与均衡度均呈现减少趋势，土地利用系统混乱度增加，均衡性减弱；土地利用程度变化量及变化幅度均大于0。［结论］该流域土地利用处于发展时期。

[ Objective ] The research on the change characteristics of land use in Liao River watershed played an important role in the analysis of the change in Liao River basin and the driving force factors. [ Method] Based on the remotely sensed data in 2000 and 2010, we analyzed the change characteristics of the land use in Liao River watershed quantificationally. [ Result] The areas of grassland, cultivated land and con- struction land increased while the forest land, water area and other land decreased. The information entropy and the equilibrium degree of land use were both in a decreasing trend. The randomness of land use system went up and the proportionality went down. The variation and the ex- tent of land use intensity in Liao River basin were both over zero. [ Conclusion] The basin was in a developing stage.