东北地区沼泽湿地景观动态特征及驱动力分析(英文)

• 作者: 张养贞 张树文 陈静
• 来源期刊: 景观研究：英文版
• 学科: 地球科学
• 关键词: WETLAND LANDSCAPE Dynamic spatial-temporal CHANGE PATCH Driving force LANDSCAPE CHANGE Science
• 年，卷（期）: 2010,（12）
• 页码范围: 41-47
• 页数: 7页
• 分类号: X37

摘要

Dynamic characteristics and spatial-temporal distribution patterns of wetland landscapes in northeast China from 1986 to 2000 were quantitatively analyzed and studied by applying theories and methods of landscape ecology,Land Change Science,remote sensing and GIS techniques.Through analyzing the dynamic spatial-temporal change degree,direction and pattern of wetland within the study area,as well as the characteristics of landscape pattern change and landscape transformation,this study got the following results:area and patch amount of wetland in northeast China showed a decreasing trend as a whole in the past 15 years.In terms of dynamic landscape changes,although the annual decrease rate of the last 5 years was 28 times more than that of the first 10 years,the first 10 years was a period with relatively more drastic patch changes of wetland landscapes in northeast China.By reviewing the overall changes of wetland landscapes in northeast China,the following characteristics were summarized:expanding in certain periods but decreasing in the overall trend,shrinking in parts but expanding from boundaries,showing high fragmentation and so on.Study on its driving forces showed that a unique spatial pattern of wetland landscapes was formed with the dual intervention of natural and artificial factors.