中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Quantifying landscape structure of the Heihe River Basin, north-west China using FRAGSTATS

文献类型:期刊论文

作者Li, X; Lu, L; Cheng, GD; Xiao, HL
刊名JOURNAL OF ARID ENVIRONMENTS
出版日期2001-08-01
卷号48期号:4页码:521-535
关键词arid region FRAGSTATS landscape metrics landscape structure geographic information system
ISSN号0140-1963
通讯作者Li, X()
英文摘要We have compiled landscape map of the Heihe River Basin based on the land-use map using geographic information systems. A total of six ecoregions was delineated. Various landscape metrics of each zone, including area, patch density and size, edge, shape, nearest-neighbor, diversity, and contagion and interspersion metrics were calculated using the landscape structure analysis program FRAGSTATS. The results indicated that the landscape pattern of the Heihe River Basin is mainly controlled by the distribution of water resources. The landscape structure in the mountainous area of the Heihe River Basin shows a high continuity and complex patch shapes. The landscape structure of the oasis area shows the most complex landscape structure, the richest patch types, and the highest diversity. The oases are distributed along rivers and artificial channels, and are heterogeneous mosaics embedded in the desert landscape matrix. The landscape structures of oases in different zones vary greatly. In the oasis zone in the Hexi Corridor, the artificial oasis, dominated by irrigated farmland, is one of the most important landscape elements. Conversely, in the Ruoshui River Delta zone, the patches are fragmented and the landscape is easily disturbed. In the transitional belt between oasis and desert, the patch types are meadow, salinized meadow, salt desert, and marsh, which are fragmented and distributed in clusters. These patch types reflect the biodiversity in the and region and play an important role in resisting the desertification in the area, suggesting they must be protected carefully. In the desert area, such as the northern Alxa High Plain, the bare gobi is a landscape matrix with absolute dominance and very high contagion, while other landscape types in the zone are heterogeneous mosaics embedded in the matrix with very small percentage. (C) 2001 Academic Press.
收录类别SCI
WOS研究方向Environmental Sciences & Ecology
WOS类目Ecology ; Environmental Sciences
语种英语
WOS记录号WOS:000170135400007
出版者ACADEMIC PRESS LTD
URI标识http://www.irgrid.ac.cn/handle/1471x/2556696
专题寒区旱区环境与工程研究所
通讯作者Li, X
作者单位1.Chinese Acad Sci, Cold & Arid Regions Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
2.Chinese Acad Sci, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714
Li, X,Lu, L,Cheng, GD,et al. Quantifying landscape structure of the Heihe River Basin, north-west China using FRAGSTATS[J]. JOURNAL OF ARID ENVIRONMENTS,2001,48(4):521-535.
APA Li, X,Lu, L,Cheng, GD,&Xiao, HL.(2001).Quantifying landscape structure of the Heihe River Basin, north-west China using FRAGSTATS.JOURNAL OF ARID ENVIRONMENTS,48(4),521-535.
MLA Li, X,et al."Quantifying landscape structure of the Heihe River Basin, north-west China using FRAGSTATS".JOURNAL OF ARID ENVIRONMENTS 48.4(2001):521-535.

入库方式: iSwitch采集

来源:寒区旱区环境与工程研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。