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Estimation of soil water storage according to its multi-scale correlations with environmental factors

文献类型：期刊论文

作者Li, Xuezhang3,4; Shao, Ming 'an2; Hu, Wei1; Xu, Xianli3,4; Wang, Kelin3,4
刊名SOIL & TILLAGE RESEARCH
出版日期2024-05-01
卷号238页码:11
ISSN号0167-1987
关键词Soil moisture estimation Multivariate empirical mode decomposition Nonlinear process Intrinsic mode functions Soil moisture condition
DOI10.1016/j.still.2024.106009
通讯作者Shao, Ming 'an(312300481@qq.com) ; Xu, Xianli(464294932@qq.com)
英文摘要Soil water storage (SWS) is a crucial parameter for vegetation restoration and a variety of hydrological processes in semi -arid regions. Its dynamics reflect the integrated influence of different factors operating at various intensities and scales. In this study, we investigated the scale -specific correlations between SWS and six selected environmental factors along a 1340-m long sampling transect in a semi -arid catchment using multivariate empirical mode decomposition (MEMD). The six factors were bulk density, elevation, clay, silt, sand, and soil organic carbon content. The multivariate data series of the SWS and factors of interest were separated into seven intrinsic mode functions (IMFs) and residue. IMF1, IMF3, and IMF5 were identified as the primary scales according to the percentage of total variance (about 50%) in SWS under different soil moisture conditions. The scale -specific correlations between SWS and the corresponding factors varied with scale but were irrelevant to soil moisture condition. SWS at each IMF and residue could be estimated using the associated scale -specific environmental factors at the same IMF or residue. SWS at the measurement scale was satisfactorily estimated by summarizing all the predicted IMFs and residue, which outperformed measurement -scale SWS estimation based on multivariate stepwise linear regression between SWS and the associated factors. Soil moisture condition could affect the relative importance of the environmental factors in overall SWS estimation. In general, soil properties were the dominant predictor of SWS under different soil moisture conditions. MEMD provides a useful opportunity to deal with scale -specific correlations between various variables.
WOS关键词EMPIRICAL MODE DECOMPOSITION ; TEMPORAL STABILITY ; SPATIAL VARIABILITY ; LOESS PLATEAU ; UNCERTAINTY PRINCIPLE ; TIME STABILITY ; MOISTURE ; REVEGETATION ; PERSISTENCE ; SIMILARITY
资助项目National Natural Science Foundation of China[41977014] ; West Light Foundation of the Chinese Academy of Sciences[292022000015] ; Hunan Natural Science Foundation[2022JJ30645] ; Guangxi Natural Science Foundation[2023GXNSFAA026400] ; Opening Fund of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau[A314021402- 1805]
WOS研究方向Agriculture
语种英语
出版者ELSEVIER
WOS记录号WOS:001167876700001
资助机构National Natural Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; Hunan Natural Science Foundation ; Guangxi Natural Science Foundation ; Opening Fund of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau
源URL[http://ir.igsnrr.ac.cn/handle/311030/202953]  
专题中国科学院地理科学与资源研究所
通讯作者Shao, Ming 'an; Xu, Xianli
作者单位1.New Zealand Inst Plant & Food Res Ltd, Private Bag 4704, Christchurch 8140, New Zealand
2.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
3.Guangxi Key Lab Karst Ecol Proc & Services, Huanjiang 547100, Peoples R China
4.Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Huanjiang Observat & Res Stn Karst Ecosyst, Changsha 410125, Peoples R China
推荐引用方式
GB/T 7714		 Li, Xuezhang,Shao, Ming 'an,Hu, Wei,et al. Estimation of soil water storage according to its multi-scale correlations with environmental factors[J]. SOIL & TILLAGE RESEARCH,2024,238:11.
APA Li, Xuezhang,Shao, Ming 'an,Hu, Wei,Xu, Xianli,&Wang, Kelin.(2024).Estimation of soil water storage according to its multi-scale correlations with environmental factors.SOIL & TILLAGE RESEARCH,238,11.
MLA Li, Xuezhang,et al."Estimation of soil water storage according to its multi-scale correlations with environmental factors".SOIL & TILLAGE RESEARCH 238(2024):11.

入库方式： OAI收割

来源：地理科学与资源研究所

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