元江县河谷区土地利用格局研究

以2002年2月的Landsat—TM影像为数据源，应用景观生态学原理，采用分离度和类型破碎度指数从土地利用现状和空间结构上对元江县河谷区的土地利用格局作了分析。元江河谷区目前呈现以灌木林地为基质，荒草地、有林地、人工植被、城乡居民地斑块镶嵌，水域和河滩由西北至东南线性廊道贯穿全境的土地利用格局。河谷的整个生态环境破坏严重，景观破碎程度大，现行土地利用格局不尽合理，需要进行结构调整，以期解决元江县优势产业开发区生态保护与经济发展之间的矛盾，为此提出了有关建议。

Research on Land Use Pattern of River Valley in Yuanjiang

Based on Landsat remote sensing image of February 2002 and landscape ecology principles,four indices, i.e, area, patches, fragmentation and isolation were chosen to analyse spatial structure and present land use of river valley in Yuanjiang.The results indicated that ecosystem of Yuanjiang river valley was relatively worse, and landscape was comparatively fragmental. The structure of land use is not rational and should be adjusted in order to solve the contradiction between ecological protection and economic development of superior industrial development zone in Yuanjiang county .