基于RS和GIS的黄河三角洲北部湿地保护区的生态环境变化

详细信息

收稿日期: 2010-11-29

RS AND GIS ANALYSIS OF ECO-ENVIRONMENTAL CHANGE OF THE NORTHERN WETLAND CONSERVATION AREA IN YELLOW REVIER DELTA

Received Date: 29 November 2010

摘要: 通过对1996、2000和2005年3个时相Landsat卫星遥感数据的解译,得到了黄河三角洲北部湿地保护区3个年份的生态环境变化,对比研究表明海水和水库的相对位置在宏观上控制着盐分梯度,是本区湿地各种类型分布的重要控制因素。自然因素(1976年黄河改道海水入侵和1992年特大风暴潮)及人类活动(1998年封育天然柽柳林和后期大面积种植棉花)对北部保护区湿地类型的变化影响很大。
- 遥感 /
- 生境变化 /
- 湿地 /
- 黄河三角洲
Abstract: Based on the comparative analysis of the three phases of remote sensing images in 1996,2000 and 2005 respectively,we discussed in this paper the eco-environment changes of the wetland in the northern conservation area of the Yellow River Delta. The boundary between seawater and fresh water reservoir is the control factor of salinity gradient,which plays an important role in the distribution of wetland types. Both the natural factors,such as seawater invasion caused by river channel shifting in 1976 and the storm surge in 1992,and human activities,such as the nurtures of natural tamarisk in 1998 and the expansion of cotton planting afterwards,has rendered big influence on the distribution of wetland types in the area.
- remote sensing /
- eco-environment change /
- wetland /
- Yellow River Delta