大庆市土地利用/土地覆盖景观格局研究

The land use and land cover landscape structure research of Daqing urban area

利用遥感影像处理系统,对大庆市1978-2001年5个时段的TM影像进行处理,得到大庆市土地利用图;据图进行土地利用/土地覆盖景观格局分析,利用GIS软件计算出大庆市区土地利用/土地覆盖的破碎化、斑块形状、分离度、优势度、均匀性及多样性等景观指数,并对大庆市区土地利用/土地覆盖进行自相关分析;结果表明,作为一个典型的石油型城市,大庆市景观格局有其独特之处.

The research on land use and land cover changes is a core for studies on the global change. The study on landscape pattern is important for better understanding land use/land cover changes. The study area of this paper is Daqing City, a typical resource-based city in China. The land use maps of 1978～2001 were compiled from the five periods of TM images .Under the guidance of the related theories about landscape ecology, some indexes (Fragmentation Index, patch shape index, diversity index, dominance index and evenness index) that reflecting the landscape feature are selected and spatial autocorrelation analysis are applied to study the land use characteristic of the urban area of Daqing City. The results show that the relationship between landscape pattern and resource exploitation is so remarkable, which is different with other types of cities.