基于GIS支持下土地景观空间格局动态遥感研究

A Study on the Dynamic Remote Sensing of Landscape Spatial Pattern in View of GIS

应用３个时期航空遥感图像为基本信息源，在ＡＲＣ／ＩＮＦＯ系统的支持下，建立空间信息库，选取嵌块大小、分维数、优势度、多样性指数、均匀性指数等指标，对黄土高原沟壑区泥河沟流域土地景观空间格局的动态演变进行了分析。结果表示，从１９６８年、１９８７年、１９９５年，泥河沟土地景观空间格局发生了显著变化，多样性指数、均匀性指数逐渐上升，景观格局朝着农、果、林、牧多优势度的趋势发展，综合治理取得了明显效益。

By using three-period aerial photo as basic information resource and withthe support of ARC/INFO , a space information storehouse is built up. Through selecting patches size , fractal dimension, dominance, diversity index, evenness index, etc,the dynamic development of land sight space pattern of Nihegou Valley in the loessplateau gully area is analysized. The result from 1987～1995 shows that Nihegou's landsight space pattern changes significantly with the diversity and evenness index being onthe rise. The pattern shows a varied development tendency of agriculutre, fruit,forestry and animal husbandry, i. e. the obvious results obtained from integrated control .