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Alternative TitleLandscape pattern evolution and its driving factors of Baiyangdian lake-marsh wetland system
白军红1; 房静思1; 黄来斌1; 邓伟2; 李爱农2; 孔博2
Corresponding Author白军红
Source Publication地理研究
Abstract以白洋淀湖沼湿地系统为研究对象,分析了1979年、1991年、2000年和2006年4个时期白洋淀湖沼湿地系统景观格局演变过程及其湿地景观格局指数的动态变化,并剖析白洋淀湖沼湿地系统格局演变的驱动力。研究结果表明,研究期内湿地面积呈减少趋势,由1979年的404.5 km~2缩减到2006年的338.4 km~2,且减少部分大多转化为耕地;同时,各景观类型分布趋于集中分布,但景观多样性降低。1979-2006年期间,1979-1991年时段内的湿地景观格局指数变化最快,之后变缓。近30年内耕地斑块面积、边界密度和面积加权平均邻近指数最大;建设用地的斑块数量最多,斑块密度最大;各湿地景观类型的平均分维数都接近1,形状都比较简单。引起湿地系统景观格局演变的主要原因包括气候、水文过程以及社会经济和政策等因素。
Other AbstractBaiyangdian Lake is the largest natural lake in the North China Plain and it is also a typical inland wetland in the semi-arid zone. We analyzed the changes in landscape pattern evolution and landscape indices of Baiyangdian lake-marsh wetland system, and discussed the driving factors of these changes using remote images in the years of 1979, 1991, 2000 and 2006. Our results showed that the area of Baiyangdian lake-marsh wetlands exhibited a decreasing tendency in the study period. It covered 404.5 km~2 in 1979 and decreased to 338.4 km~2 in 2006, and the reduced wetlands were mainly converted to farmland. All types of landscapes exhibited a clustered distribution in this region, and their landscape diversity showed a decreasing trend. Over the past three decades, the great changes in landscape indices occurred during the period 1979-1991, and then the small changes were observed after 1991. Farmlands had the largest landscape indices including the patch area, the edge density and the area-weighted mean proximity index. The land for construction had the largest number of patches, followed by ditch wetlands. The average fraction of each wetland type approached to 1, indicating that they had simple shapes. The main driving factors causing landscape pattern change included climate, hydrological process and social and economic policies, etc.
Keyword湖沼湿地系统 景观格局 景观格局指数 驱动力 白洋淀
Subject AreaX143
Indexed ByCSCD ; 北大中文核心
Funding Organization国家重点基础研究计划项目(2010CB951102) ; 国家重大水专项(2009ZX0 7209-008-03) ; 教育部新世纪优秀人才支持计划项目(NECT-10-0235)
Citation statistics
Cited Times:19[CSCD]   [CSCD Record]
Document Type期刊论文
Affiliation1.北京师范大学环境学院, 水环境模拟国家重点实验室
Recommended Citation
GB/T 7714
白军红,房静思,黄来斌,等. 白洋淀湖沼湿地系统景观格局演变及驱动力分析[J]. 地理研究,2013,32(9):1634-1644.
APA 白军红,房静思,黄来斌,邓伟,李爱农,&孔博.(2013).白洋淀湖沼湿地系统景观格局演变及驱动力分析.地理研究,32(9),1634-1644.
MLA 白军红,et al."白洋淀湖沼湿地系统景观格局演变及驱动力分析".地理研究 32.9(2013):1634-1644.
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