摘要
以高级星载热发射反照辐射计(ASTER)影像作为数据源,以龙川江流域作为研究对象,在遥感和GIS技术的支持下,采用GIS和景观生态学相结合的办法,对龙川江流域土地利用/覆被景观空间格局特点进行分析。结果表明,龙川江流域植被覆盖率较高,林地和灌草丛面积合计占研究区总面积的86.27%,但除灌草丛连通性较强外,各景观类型斑块小而分布零散,景观破碎化程度大,阻碍了整个生态系统的正常的物质和能量流动,生态环境需要改善。
The landscape pattern characteristics of land use and cover change （LUCC） of Longchuan River basin was analyzed by using ASTER image as a data source and combining GIS with landscape ecology under the support of remote sensing and GIS technology. The results showed that the vegetation coverage rate of Longchuan River basin was relatively high and the area of forest land, shrub land and grass land accounted for 86.27% of the total investigated area, and because the various landscape type with a small area was scattered, the landscape connectivity degree was poor, which hindered the normal material and energy flow of the entire ecosystem. Therefore, the ecological environment of Longchuan River basin should be improved further.
出处
《贵州农业科学》
CAS
北大核心
2009年第8期162-165,共4页
Guizhou Agricultural Sciences
