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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
Xiao, Feiyan1,2; Gao, Guangyao2; Shen, Qin3; Wang, Xiaofeng1; Ma, Ying4; Lu, Yihe2; Fu, Bojie2
2019-04-01
Source PublicationLANDSCAPE ECOLOGY
ISSN0921-2973
Volume34Issue:4Pages:755-770
Corresponding AuthorGao, Guangyao(gygao@rcees.ac.cn) ; Wang, Xiaofeng(wangxf@chd.edu.cn)
AbstractContextThe 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.
KeywordDesert-oasis ecotone Oasis expansion Landscape structure change Human activities Quantitative analysis Arid region
DOI10.1007/s10980-019-00801-2
WOS KeywordLAND-COVER CHANGES ; ECO-ENVIRONMENT ; OASIS ; XINJIANG ; DEGRADATION ; CLIMATE ; CHINA ; OASES ; GIS
Indexed BySCI
Language英语
Funding ProjectNational 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]
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS
WOS Research AreaEnvironmental Sciences & Ecology ; Physical Geography ; Geology
WOS SubjectEcology ; Geography, Physical ; Geosciences, Multidisciplinary
WOS IDWOS:000467558400004
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/59795
Collection中国科学院地理科学与资源研究所
Corresponding AuthorGao, Guangyao; Wang, Xiaofeng
Affiliation1.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
Recommended Citation
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.
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