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Spatio-temporal characteristics and driving forces of landscape structure changes in the middle reach of the Heihe River Basin from 1990 to 2015

文献类型：期刊论文

作者Xiao, Feiyan1,2; Gao, Guangyao2; Shen, Qin3; Wang, Xiaofeng1; Ma, Ying4; Lu, Yihe2; Fu, Bojie2
刊名LANDSCAPE ECOLOGY
出版日期2019-04-01
卷号34期号:4页码:755-770
关键词Desert-oasis ecotone Oasis expansion Landscape structure change Human activities Quantitative analysis Arid region
ISSN号0921-2973
DOI10.1007/s10980-019-00801-2
通讯作者Gao, Guangyao(gygao@rcees.ac.cn) ; Wang, Xiaofeng(wangxf@chd.edu.cn)
英文摘要ContextThe oasis, desert-oasis ecotone (DOE) and desert compose the typical landscape structures in arid regions. The detection of landscape structure changes and quantification of the driving forces are vital to sustainable ecosystem management. Previous studies did not integrate the three landscape types, especially considering the role of the DOE, to detect landscape changes.Objectives(1) Detect the spatio-temporal dynamics of the landscape structure in the middle reach of the Heihe River Basin from 1990 to 2015. (2) Identify the key driving factors for landscape structure changes and quantify their contributions.MethodsThe decision tree classification algorithm was combined with visual interpretation to extract oasis, DOE and desert areas. Status and trend indicators, transition matrix and landscape metrics were used to characterize the landscape changes. Redundancy analysis and variation portioning analysis were integrated for quantification of driving forces.ResultsLandscape change was characterized by oasis expansion (+37.21%) via a one-way transition with an unbalanced status. The contraction of DOE (-12.73%) and desert (-8.50%) areas mainly occurred on the periphery of the oasis. The landscape structure changes were mainly driven by the population, river flow and gross domestic product with unique contributions of 35.99, 9.01 and 7.68%, respectively, and a cumulative contribution of 96.64%.ConclusionsThe mutual transformations among landscapes showed distinct spatio-temporal variations. Human activities, especially demographic factors, drove the changes in landscape structure. The development of oasis areas should be controlled within a suitable scale, and the DOE should be protected to maintain the stability of ecosystems in arid regions.
WOS关键词LAND-COVER CHANGES ; ECO-ENVIRONMENT ; OASIS ; XINJIANG ; DEGRADATION ; CLIMATE ; CHINA ; OASES ; GIS
资助项目National Key Research and Development Program of China[2017YFA0604703] ; National Natural Science Foundation of China[41822103] ; National Natural Science Foundation of China[91425301] ; Chinese Academy of Sciences[QYZDY-SSW-DQC025] ; Youth Innovation Promotion Association CAS[2016040]
WOS研究方向Environmental Sciences & Ecology ; Physical Geography ; Geology
语种英语
WOS记录号WOS:000467558400004
出版者SPRINGER
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS
源URL[http://ir.igsnrr.ac.cn/handle/311030/59794]  
专题中国科学院地理科学与资源研究所
通讯作者Gao, Guangyao; Wang, Xiaofeng
作者单位1.Changan Univ, Sch Earth Sci & Resources, Xian 710054, Shaanxi, Peoples R China
2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China
3.Beijing Forestry Univ, State Forestry Adm Key Lab Forest Resources & Env, Beijing 100083, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Xiao, Feiyan,Gao, Guangyao,Shen, Qin,et al. Spatio-temporal characteristics and driving forces of landscape structure changes in the middle reach of the Heihe River Basin from 1990 to 2015[J]. LANDSCAPE ECOLOGY,2019,34(4):755-770.
APA Xiao, Feiyan.,Gao, Guangyao.,Shen, Qin.,Wang, Xiaofeng.,Ma, Ying.,...&Fu, Bojie.(2019).Spatio-temporal characteristics and driving forces of landscape structure changes in the middle reach of the Heihe River Basin from 1990 to 2015.LANDSCAPE ECOLOGY,34(4),755-770.
MLA Xiao, Feiyan,et al."Spatio-temporal characteristics and driving forces of landscape structure changes in the middle reach of the Heihe River Basin from 1990 to 2015".LANDSCAPE ECOLOGY 34.4(2019):755-770.

入库方式： OAI收割

来源：地理科学与资源研究所

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