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Time Series of Landsat Imagery Shows Vegetation Recovery in Two Fragile Karst Watersheds in Southwest China from 1988 to 2016
Pei, Jie1,2,3; Wang, Li1; Wang, Xiaoyue4; Niu, Zheng1,2; Kelly, Maggi3; Song, Xiao-Peng5; Huang, Ni1; Geng, Jing2,3,6; Tian, Haifeng7; Yu, Yang8; Xu, Shiguang1; Wang, Lei1; Ying, Qing9; Cao, Jianhua10,11
2019-09-01
Source PublicationREMOTE SENSING
Volume11Issue:17Pages:26
Corresponding AuthorWang, Li(wangli@radi.ac.cn)
AbstractSince the implementation of China's afforestation and conservation projects during recent decades, an increasing number of studies have reported greening trends in the karst regions of southwest China using coarse-resolution satellite imagery, but small-scale changes in the heterogenous landscapes remain largely unknown. Focusing on two typical karst regions in the Nandong and Xiaojiang watersheds in Yunnan province, we processed 2,497 Landsat scenes from 1988 to 2016 using the Google Earth Engine cloud platform and analyzed vegetation trends and associated drivers. We found that both watersheds experienced significant increasing trends in annual fractional vegetation cover, at a rate of 0.0027 year(-1) and 0.0020 year(-1), respectively. Notably, the greening trends have been intensifying during the conservation period (2001-2016) even under unfavorable climate conditions. Human-induced ecological engineering was the primary factor for the increased greenness. Moreover, vegetation change responded differently to variations in topographic gradients and lithological types. Relatively more vegetation recovery was found in regions with moderate slopes and elevation, and pure limestone, limestone and dolomite interbedded layer as well as impure carbonate rocks than non-karst rocks. Partial correlation analysis of vegetation trends and temperature and precipitation trends suggested that climate change played a minor role in vegetation recovery. Our findings contribute to an improved understanding of the mechanisms behind vegetation changes in karst areas and may provide scientific supports for local afforestation and conservation policies.
Keywordvegetation change Google Earth Engine afforestation and conservation projects climate change karst rocky desertification southwest China
DOI10.3390/rs11172044
WOS KeywordECOLOGICAL RESTORATION PROJECTS ; NET PRIMARY PRODUCTION ; CLIMATE-CHANGE ; ROCKY DESERTIFICATION ; FOREST COVER ; DROUGHT ; IMPACT ; GROWTH ; REGION ; AREAS
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Project[2016YFC0502501] ; National Natural Science Foundation of China[41871347]
Funding OrganizationNational Key Research and Development Project ; National Natural Science Foundation of China
WOS Research AreaRemote Sensing
WOS SubjectRemote Sensing
WOS IDWOS:000486874300088
PublisherMDPI
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/69528
Collection中国科学院地理科学与资源研究所
Corresponding AuthorWang, Li
Affiliation1.Chinese Acad Sci, State Key Lab Remote Sensing Sci, Inst Remote Sensing & Digital Earth, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
5.Texas Tech Univ, Dept Geosci, Lubbock, TX 79409 USA
6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
7.Henan Univ, Coll Environm & Planning, Kaifeng 475004, Peoples R China
8.China Inst Water Resources & Hydropower Res, Dept Sediment Res, Beijing 100048, Peoples R China
9.Univ Maryland, Dept Geog Sci, College Pk, MD 20742 USA
10.Chinese Acad Geol Sci, Inst Karst Geol, Key Lab Karst Dynam, Guilin 541004, Peoples R China
11.UNESCO, Int Res Ctr Karst, Guilin 541004, Peoples R China
Recommended Citation
GB/T 7714
Pei, Jie,Wang, Li,Wang, Xiaoyue,et al. Time Series of Landsat Imagery Shows Vegetation Recovery in Two Fragile Karst Watersheds in Southwest China from 1988 to 2016[J]. REMOTE SENSING,2019,11(17):26.
APA Pei, Jie.,Wang, Li.,Wang, Xiaoyue.,Niu, Zheng.,Kelly, Maggi.,...&Cao, Jianhua.(2019).Time Series of Landsat Imagery Shows Vegetation Recovery in Two Fragile Karst Watersheds in Southwest China from 1988 to 2016.REMOTE SENSING,11(17),26.
MLA Pei, Jie,et al."Time Series of Landsat Imagery Shows Vegetation Recovery in Two Fragile Karst Watersheds in Southwest China from 1988 to 2016".REMOTE SENSING 11.17(2019):26.
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