三个时期河北省滨海湿地景观格局及变化

Landscape Patterns of Coastal Wetlands in Hebei Province in 2000,2005 and 2010 and Their Changes

根据景观生态学原理,利用地理信息技术,以2000年、2005和2010年的遥感影像为数据源,对河北省滨海湿地面积变化进行统计分析;在FRAGSTATS软件支持下,采用景观格局指数,对滨海湿地景观格局变化进行分析。研究结果显示:人工滨海湿地为研究区的优势景观类型;与2000年相比,2010年滨海湿地面积减少了4 083.63 hm2,说明部分湿地已经转化为非湿地,湿地功能退化。湿地格局改变主要表现在各类型人工湿地之间的相互转变。2010年研究区景观斑块数比2000年明显增加,说明湿地破碎化加剧。

Remote sensing images of Hebei province in 2000, 2005 and 2010 were analyzed based on principles of landscape ecology and geographic information system technology. The FRAGSTATS software was employed to calculate landscape indices for the analysis of the landscape patterns and their change of 10 kinds of the coastal wetlands. The results of the study indicated that the artificial coastal wetlands were dominant landscape in the study area; compared with that in 2000, the area of the coastal wetlands decreased by 4 083.6 ha, and part of the wetlands converted into non-wetlands and the functions of the coastal wetlands had degraded. Transformations between artificial wetlands were the major way of landscape pattern change.Compared with 2000, the number of patch of the landscape in 2010 increased, which was 1 043 patches, that showed that the landscape fragmentation trend intensified.