Evaluation of AMSR-E retrieval by detecting soil moisture decrease following massive dryland re-vegetation in the Loess Plateau, China
Feng, XM; Li, JX; Cheng, W; Fu, BJ; Wang, YQ; Lu, YH; Shao, MA
2017
Source PublicationREMOTE SENSING OF ENVIRONMENT
ISSN0034-4257
Volume196Pages:253-264
AbstractKnowledge of soil moisture, however varied in space and time, is critical for planning land use in water-limited drylands. Although satellite observations provide soil moisture instantaneously at large scale, few studies have addressed the application of satellite soil moisture retrieval in dryland areas with changing land use. In this study, we propose a method to evaluate the spatiotemporal variance of satellite retrieval based on the evaluation of soil moisture retrievals from the Advanced Microwave Scanning Radiometer on the Earth Observing System (AMSR-E). The operation period of this instrument (June 2002 to October 2011) covers the re-vegetation of the semi-arid Loess Plateau. Our study found that AMSR-E retrievals posted by the Japanese Aerospace Exploration Agency (JAXA) capture the spatiotemporal variance of soil moisture in the Loess Plateau, as well as the in-situ measured soil moisture decrease following the massive re-vegetation-despite it differing from the in-situ measurement in spatial scale. Soil moisture decrease in response to the massive re-vegetation occurred in a transition zone of grass-forest ecosystems with annual precipitation between 450 and 550 mm. Our study suggests that current AMSR-E JAXA retrievals are an essential alternative to field measurement and model simulation, because they can identify the location and spatial extent of areas where soil moisture is sensitive to climate change and managed re-vegetation. To avoid the overconsumption of soil water and limited plant growth in transition zone, managers of dryland areas should pay special attention to species selection. (C) 2017 Elsevier Inc. All rights reserved.
SubtypeJournal
KeywordAMSR-E Loess Plateau Precipitation gradient Re-vegetation Soil moisture
Subject AreaEnvironmental Sciences & Ecology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS Subject ExtendedEnvironmental Sciences ; Remote Sensing ; Imaging Science & Photographic Technology
WOS KeywordIN-SITU OBSERVATIONS ; REMOTE-SENSING DATA ; WATER CONTENT ; SURFACE-TEMPERATURE ; HILLSLOPE SCALE ; TIBETAN PLATEAU ; CATCHMENT SCALE ; HIGH-RESOLUTION ; SATELLITE DATA ; INDEX SPACE
Indexed BySCI
Language英语
WOS IDWOS:000403443700019
PublisherELSEVIER SCIENCE INC
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/44044
Collection生态系统网络观测与模拟院重点实验室_生态网络实验室
Recommended Citation
GB/T 7714
Feng, XM,Li, JX,Cheng, W,et al. Evaluation of AMSR-E retrieval by detecting soil moisture decrease following massive dryland re-vegetation in the Loess Plateau, China[J]. REMOTE SENSING OF ENVIRONMENT,2017,196:253-264.
APA Feng, XM.,Li, JX.,Cheng, W.,Fu, BJ.,Wang, YQ.,...&Shao, MA.(2017).Evaluation of AMSR-E retrieval by detecting soil moisture decrease following massive dryland re-vegetation in the Loess Plateau, China.REMOTE SENSING OF ENVIRONMENT,196,253-264.
MLA Feng, XM,et al."Evaluation of AMSR-E retrieval by detecting soil moisture decrease following massive dryland re-vegetation in the Loess Plateau, China".REMOTE SENSING OF ENVIRONMENT 196(2017):253-264.
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