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	Landscape Pattern Changes of Desert Oasis Wetlands in the Middle Reach of the Heihe River, China
	Li, Shoubo; Zhao, Wenzhi
刊名	ARID LAND RESEARCH AND MANAGEMENT
	2010
卷号	24期号:3页码:253-262
关键词	FRAGSTATS remote sensing wetlands landscape
ISSN号	1532-4982
DOI	10.1080/15324981003741707
通讯作者	Zhao, Wenzhi(zhaowzh@lzb.ac.cn)
英文摘要	Desert oasis wetlands are distributed along the Heihe River, especially in lowland oases along the middle reach of the river, in northwestern China. Landscape maps of the wetlands in 1990, 1995, 2000, and 2006 were compiled based on data collected from Landsat TM and ETM+ images using GIS and analyzed in July 2008. Various landscape indices were calculated using the landscape structure analysis software FRAGSTATS, at both class and landscape levels. The results showed that floodplain wetland is the dominant type of wetlands in the middle reach of the Heihe River, followed by non-forested peatland, then river and reservoir wetland, with the proportion of shrub-dominated wetland low. During these 16 years, the area of wetlands in our study area decreased by 38.4%, or 107.8 km(2). The major type of wetland lost in the study area was non-forested peatland during the first five years, but floodplain wetland since then. The landscape pattern shows that the fragmentation level is very high, especially in the floodplain wetlands: the patch density increased by 154% during the study period. It is clear that the wetlands along the middle reach of the Heihe River have become increasingly fragmental during the past 16 years.
收录类别	SCI
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
WOS类目	Environmental Sciences ; Soil Science
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000278418500006
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2556288
专题	寒区旱区环境与工程研究所
通讯作者	Zhao, Wenzhi
作者单位	Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Linze Inland River Basin Comprehens Res Stn, Key Lab Ecohydrol Inland River Basin,Chinese Ecos, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Li, Shoubo,Zhao, Wenzhi. Landscape Pattern Changes of Desert Oasis Wetlands in the Middle Reach of the Heihe River, China[J]. ARID LAND RESEARCH AND MANAGEMENT,2010,24(3):253-262.
APA	Li, Shoubo,&Zhao, Wenzhi.(2010).Landscape Pattern Changes of Desert Oasis Wetlands in the Middle Reach of the Heihe River, China.ARID LAND RESEARCH AND MANAGEMENT,24(3),253-262.
MLA	Li, Shoubo,et al."Landscape Pattern Changes of Desert Oasis Wetlands in the Middle Reach of the Heihe River, China".ARID LAND RESEARCH AND MANAGEMENT 24.3(2010):253-262.

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