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Semi-natural areas of Tarim Basin in northwest China: Linkage to desertification
Liu, Fang1; Zhang, Hongqi1; Qin, Yuanwei2; Dong, Jinwei2; Xu, Erqi1; Yang, Yang3; Zhang, Geli2; Xiao, Xiangming2
2016-12-15
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume573Pages:178-188
Corresponding AuthorZhang, Hongqi(zhanghq@igsnrr.ac.cn)
AbstractSemi-natural lands are not intensively managed lands, which have ecological significance in protecting artificial oasis and preventing desertification in arid regions. The significant shrinkage and degradation of semi-natural lands in the land-use intensification process have caused severe desertification. However, there is a knowledge gap regarding the spatio-temporal pattern and detailed classification of semi-natural lands and its quantitative relationship with desertification. Taking the Tarim Basin as an example, we proposed a comprehensive classification system to identify semi-natural lands for 1990, 2000, and 2010, respectively, using multi-source datasets at large scales. Spatio-temporal changes of semi-natural lands were then characterized by map comparisons at decade intervals. Finally, statistical relationships between semi-natural lands and desertification were explored based on 241 watersheds. The area of semi-natural lands in Tarim Basin was 10.77 x 10(4) km(2) in 2010, and desert-vegetation type, native-oasis type, artificial-oasis type, saline type and wetland type accounted for 59.59%, 14.65%, 11.25%, 9.63% and 4.88% of the total area, respectively. A rapid loss of semi-natural lands (9769.05 km(2)) was demonstrated from 1990 to 2010. In the fragile watersheds, the semi-natural lands were mainly converted to desert; while in the watersheds with advanced oasis agriculture, artificial-oasis type reclaimed to arable land was the major change. The occurrence of desertification was closely related to the type, area proportion and combination patterns of semi-natural lands. Desertification was prone to occur in regions abundant in desert-vegetation type and saline type, while less serious desertification was observed in regions with high proportion of artificial-oasis type and wetland type. Policy intervention and reasonable water resource allocation were encouraged to prevent the substantial loss of semi-natural lands, especially for the water-limiting watersheds and periods. (C) 2016 Elsevier B.V. All rights reserved.
KeywordSemi-natural lands Desertification Sustainable development Arid region Tarim Basin
DOI10.1016/j.scitotenv2016.07.180
WOS KeywordECOLOGICAL WATER CONVEYANCE ; DESERT-OASIS ECOTONE ; POPULUS-EUPHRATICA FOREST ; LAND-COVER CHANGE ; NDVI TIME-SERIES ; CLIMATE-CHANGE ; RIPARIAN VEGETATION ; SPATIAL-PATTERN ; NORTHERN CHINA ; LOWER REACHES
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41671097] ; National Basic Research Program of China[2014BAC15B02]
Funding OrganizationNational Natural Science Foundation of China ; National Basic Research Program of China
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000390071000017
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/65245
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZhang, Hongqi
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
2.Univ Oklahoma, Ctr Spatial Anal, Dept Microbiol & Plant Biol, Norman, OK 73019 USA
3.USDA ARS, Hydrol & Remote Sensing Lab, Beltsville, MD 20705 USA
Recommended Citation
GB/T 7714
Liu, Fang,Zhang, Hongqi,Qin, Yuanwei,et al. Semi-natural areas of Tarim Basin in northwest China: Linkage to desertification[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2016,573:178-188.
APA Liu, Fang.,Zhang, Hongqi.,Qin, Yuanwei.,Dong, Jinwei.,Xu, Erqi.,...&Xiao, Xiangming.(2016).Semi-natural areas of Tarim Basin in northwest China: Linkage to desertification.SCIENCE OF THE TOTAL ENVIRONMENT,573,178-188.
MLA Liu, Fang,et al."Semi-natural areas of Tarim Basin in northwest China: Linkage to desertification".SCIENCE OF THE TOTAL ENVIRONMENT 573(2016):178-188.
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