摘要
文章以哈尔滨市太阳岛为研究对象,以2003年和2013年的QuickBird和WorldView-2遥感影像为主要数据源,在RS和GIS的支持下,基于面向对象的方法,定量提取该区域的土地利用/覆盖数据,在此基础上,探究土地利用时空演变特征,揭示土地利用变化成因,以期为该区域土地合理利用及生态环境保护提供理论依据。结果表明:10a间水域和未利用地面积增加,水域增加最大,为206.42hm^2,其他地类面积减少,湿地减少最多;湿地向水域的转变量最大,为169.35hm^2,其次是草地转换为未利用地,为91.73hm^2,水域的保留量最大,为459.35hm^2;太阳岛区域内生态功能下降,生态安全程度降低,生态环境质量区域恶化。
Taking Sun island in Harbin as study area, QuickBird images （2003） and WorldView-2 images （2013） as data sources, based on the object-oriented approach with the help of RS and GIS, the land use remote sensing information were studied. Then, analyzed the findings, features and drives of the land use/ cover changes in 2003 and 2013, providing a rational-using of land and environment protect theoretical basis in the region. What was the result as following shows. Areas of territorial water and unused land were increased, and the water area in study area was the largest, increased with 206.42 hm^2. But apart from these were decreased, the area of wetland decreased largest. There are reciprocal transformation relationships between types land with varying degrees of change, in which areas of wetland changes to water land with 169. 35 hm^2 were the largest, and then , 91.73 hm^2, was the grassland changes to the unused land. The maximum of reserved was the territorial water with 459.35 hm^2. What result of which lead to the bad was that the ecological function of Sun Island declined and the degree of ecological security reduced.
基金
黑龙江省自然基金(D201410)
黑龙江省教育厅科研项目(1253153)
