基于RS和GIS的2010年南瓮河自然保护区景观格局分析

利用2010年Landsat TM遥感影像作为基本信息源,在RS和GIS技术的支持下,建立空间数据库,制作出南瓮河自然保护区景观格局分布图。研究区内包括7种景观类型：草本沼泽、灌丛沼泽、森林沼泽、永久性河流、道路、森林、沼泽化草甸。结果表明：各景观类型所占比例差异较大,森林和草本沼泽两种景观类型占主导优势,占所有景观类型面积比例高达93.52%;景观的破碎化指数较高,影响景观格局的主要因素是火灾,道路的修建也影响了区域景观格局,加大了景观的破碎化程度。

Analysis on Landscape Pattern in Nanwenghe Nature Reserve in 2010 based on RS and GIS

Based on remote sensing data in 2010 as basic information resource and with the support of RS and GIS technologies ,a wetland spatial information database was built up .Wetland landscape pattern distribution map was made .Result shows that there were seven landscape types ：herbaceous swamp ,shrub swamp ,forest swamp ,perma-nent river ,road ,forest ,swamp meadow .The difference of proportion for each landscape type is great ;forest and her-baceous swamp are dominant ,constitute 93 .52% of the all landscape types .Landscape fragmentation index is high-er;fire is the main factor that affects the landscape pattern ;another factor is road building which increase the land-scape fragmentation .