3S技术在哈尔滨市郊景观生态规划中的应用

利用哈尔滨市遥感数据资料，在RS、GIS 和GPS技术支持下，获取哈尔滨市郊景观格局现状及哈尔滨数字高程模型（DEM）.选取平均斑块面积、景观优势度、平均坡度、平均海拔和破碎度因子对其进行综合分析，并借助 DEM 模型进行景观生态规划.结果表明，3S技术为典型景观类型的确定提供了科学依据;建立了市郊景观类型数据库，并生成景观类型专题图；土地利用现状和景观空间分布以及地形地貌和土地利用类型相结合.DEM和遥感影像的叠加，从大尺度上定性刻画市郊的景观生态规划，而景观生态规划和DEM 的叠加，更加直观地反映了市郊的景观结构，为提高区域生态功能，促进城乡一体化的健康发展提供科学依据.

Application of 3S techniques in ecological landscape planning of Harbin suburb

With the image data (SPOT), soil utilization map (1:50000) and other related materials of Harbin, and under the support of GIS, RS and GPS techniques, this paper obtained the landscape pattern of Harbin suburb and the Digital Elevation Model (DEM) of Harbin. Indices including mean patch area, landscape dominance, mean slope, mean altitude, and fragmentation degree were selected and synthetically analyzed, with the ecological landscape planning made by DEM model. The results showed that 3S techniques could help to decide typical landscape types. The landscape type database was established, and the landscape type thematic map was generated, with land use status and landscape distribution, physiognomy, and land use types combined. The ecological landscape planning was described in large scale with the image data and DEM combined, and the landscape structure of Harbin suburb was reflected directly with the ecological landscape planning and DEM combined, which improved the ecological function in this region, and provided scientific bases to the healthy development in urban-rural integration area.