基于转移矩阵的昆明市呈贡区土地利用变化分析

Evalution of Land Use Change of Chenggong District Based on Land Use Transfer Matrix

城市区域的土地利用变化与人类活动密切相关,受人类活动影响的同时也影响着区域内人类的生活发展,与区域内的水土流失关系紧密。昆明市呈贡区地处喀斯特地貌区,研究该辖区可以有效掌握该区域的土地利用变化情况、土地类型转换情况及区域发展情况,为分析该区的水土流失状况提供依据。该文运用土地利用转移矩阵方法研究昆明市呈贡区的土地利用变化特征、土地利用转化率及年平均变化率。研究结果表明呈贡区增长的类型为城镇村及工矿用地和交通运输用地2类,转换损失最严重的是耕地,该时期呈贡处于城建迅速扩张阶段,耕地的转换贡献最为突出。

Land use change in urban areas is closely related to human activities.It is also affected by human activities and affects the development of human life in the region.It is also closely related to soil erosion in the region.The Chenggong District of Kunming City is located in the karst landform area.Studying the area can effectively grasp the land use change,land type conversion and regional development in the area,and provide a basis for analyzing the soil erosion in the area.This paper uses the land use transfer matrix method to study land use change characteristics,land use conversion rate and annual average change rate in Chenggong District of Kunming City.The results show that the types of land types in the Chenggong District are urban villages,industrial and mining land and transportation land.The most serious conversion loss is cultivated land,indicating that the Chenggong is in the stage of rapid urban construction expansion,and the conversion contribution of cultivated land is the most prominent.