摘要
以杭州湾北岸上海市段为例,利用谱间关系法从多时相遥感影像中提取出1992年、2001年和2008年的水域信息,通过水域斑块数量、面积、密度、形状、分维数和景观动态度等分析其动态变化;利用G IS空间分析方法绘制了水域密度的空间分布图。结果显示,由于受人类活动的干扰,16 a来杭州湾北岸上海段水域景观格局发生了显著变化,表现为总面积减少、斑块增加、形态更趋复杂。
On the basis of the techniques of remote sensing and geographical information system （GIS）, it is possible to extract water information from the remotely sensed images for mapping and pattern study by using the method of spectrum relations. In this paper, water information was derived from the remote sensing images of Shanghai section obtained on the northern bank of Hangzhou Bay in 1992,2001 and 2008, respectively. The landscape information including a number of patches, areas, densities, shape indices and fractals were calculated for further analysis. The results show that the landscape pattern of water was changed remarkably with the reduction of total area and patches as well as the complication of the water shape from 1992 to 2008.
出处
《国土资源遥感》
CSCD
2011年第1期123-127,共5页
Remote Sensing for Land & Resources
基金
上海市教育委员会科研创新项目(编号:11YZ154)
上海高校选拔培养优秀青年教师科研专项基金(编号:SSC09018)
上海海洋大学校博士启动基金暨环境工程重点学科基金(编号:A-2400-10-0134)共同资助
关键词
水域景观格局
海岸带
定量分析
时空演变
Landscape pattern of water
Coastal areas
Quantitative analysis
Spatio - temporal evolution
