银川市三区土地利用时空变化研究

基于土地利用调查数据,利用ArcGIS软件的空间分析功能制作土地利用转移矩阵、变化图谱,计算土地利用强度等指数分析银川市三区2009-2018的土地利用时空变化特征。结果表明2009-2018年,研究区耕地减少最多,城镇村及工矿用地面积增长明显;土地利用空间变化方向呈东西-南北走向;土地利用变化模式以稳定型为主;城镇村及工矿用地和耕地的土地利用强度较大,林地和草地有下降的趋势,交通运输用地的动态度相对较高,后期动态度指数更高。该研究可为银川市三区的土地利用结构调整、土地利用规划提供一定的理论参考。

Study on Spatio-temporal Land Use Changes in Three Districts of Yinchuan City

Based on the land use survey data,we used ArcGIS software to make the land use transfer matrix and change map and calculated the land use intensity and other indexes to analyze the spatio-temporal change characteristics of land use in three districts of Yinchuan City from 2009 to 2018.The results show that from 2009 to 2018cultivated land decreased the most,and urban villages,industrial and mining land in-creased significantly.The land usespatialchange direction is east-west-north-south.The land use change mode is mainly stable.The intensities of urban villages,industrial,mining and cultivated land use are larger.The forestsand grassland have a downward trend.The dynamic index of land for transportation is relatively high,especially at the later period.This study can provide some theoretical reference for land use structure adjust-ment and planning in the three districts of Yinchuan City.