基于空间技术的岷江上游土地利用空间分布现状分析

An Analysis on Spatial Distribution pattern of Land Use in Upper Reaches of Minjiang River Based on Spatial Technology

岷江上游生态环境与土地利用息息相关。要建设岷江上游生态屏障,调整土地利用结构,改善岷江上游地表覆被是重要的切入点。本文利用遥感、地理信息系统和全球定位系统等空间技术研究了岷江上游土地利用空间分布现状,详细分析了高程、坡度等地形因子对山地系统土地利用空间分布的重要影响,并进一步分析了该区县域土地利用水平的差异,结合区域地形、地貌特点以及资源和环境状况,提出了该区土地利用结构调整和规划的优化方向。

As the ecosystem in upper reaches of Minjiang River is closely related to land use, it is essential to build ecological fence through land use pattern adjustment and the optimization. Based on the spatial technologies of RS, GIS and GPS, this paper aims to analyze the spatial distribution pattern of land use in upper reaches of Minjiang River, the influences of altitude and gradient on the spatial distribution of hillside land use, and the differences of land use level in counties, thus pointing out the optimizing orientation for land use pattern adjustment and planning combining the geographical formation and present resources and environment under the guidance of the principle “harmony between nature and man.”