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Revegetation induced change in soil erodibility as influenced by slope situation on the Loess Plateau
Guo, Mingming1,2; Chen, Zhuoxin3; Wang, Wenlong2,3; Wang, Tianchao3; Wang, Wenxin3; Cui, Zhiqiang2
2021-06-10
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume772Pages:15
Corresponding AuthorWang, Wenlong(nwafu_wwl@163.com)
AbstractSoil erodibility is an indispensable parameter for predicting soil erosion and evaluating the benefits of soil and water conservation. Slope situation can alter revegetation and its effects on soil properties and root traits, and thus may affect soil erodibility. However, whether slope situation will change the effect of revegetation on soil erodibility through improving soil properties and root traits has rarely been evaluated. Therefore, this study was conducted to detect the response of soil erodibility to slope situations (loess-tableland, hill-slope and gullyslope) in a typical watershed of the Loess Plateau. Five soil erodibility parameters (saturated soil hydraulicconductivity, SHe mean weight diameter of aggregates, MWD: clay ratio, CR: soil disintegration rate, SDR; soil erodibility factor, K) and a comprehensive soil erodibility index (CSEI) are selected to darify the study targets. The results revealed that soil properties, root traits, soil erodibility parameters and GE( were affected by slope situation significantly. Soil and root can explain 79.7%, 79.1% and 69.8% of total variance in soil erodibility of loess-tableland, hillslope and gully-slope, respectively. Slope situation influenced soil erodibility by changing the effects of revegetation on soil properties and root traits. Evidently, the slope situation greatly changed the relations between CSEI and soil and root parameters, whereafter a model considering slope situation (slope steepness), sand, organic matter content and root surface area density was reliable to estimate soil erodibility (CSEI). Our study suggested that the Armeniaca sibirica, the combination of Bothriochloa ischcemum and Robinia pseudoacacia and the combination of Armeniaca sibirica and Lespedeza bicolor can be used as the optimal selection for mitigating soil erodibility of loess-tableland, hill-slope and gully-slope, respectively. This study is of great significance in optimizing the spatial layout of soil and water conservation measures for different slope situations of the Loess Plateau. (C) 2021 Elsevier B.V. All rights reserved.
KeywordSoil erodibility Landscape position Land use Root traits Soil erosion
DOI10.1016/j.scitotenv.2021.145540
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[42077079] ; National Natural Science Foundation of China[41571275] ; China Postdoctoral Science Foundation[2020M681062]
Funding OrganizationNational Natural Science Foundation of China ; China Postdoctoral Science Foundation
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000628753700127
PublisherELSEVIER
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/161991
Collection中国科学院地理科学与资源研究所
Corresponding AuthorWang, Wenlong
Affiliation1.Chinese Acad Sci, Key Lab Mollisols Agroecol, Northeast Inst Geog & Agroecol, Harbin 150081, Heilongjiang, Peoples R China
2.Chinese Acad Sci & Minist Water Resources, State Key Lab Soil Eros & Dryland Farming Loess P, Inst Water & Soil Conservat, Yangling 712100, Shaanxi, Peoples R China
3.Northwest A&f Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Inst Water & Soil Conservat, Yangling 712100, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Guo, Mingming,Chen, Zhuoxin,Wang, Wenlong,et al. Revegetation induced change in soil erodibility as influenced by slope situation on the Loess Plateau[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,772:15.
APA Guo, Mingming,Chen, Zhuoxin,Wang, Wenlong,Wang, Tianchao,Wang, Wenxin,&Cui, Zhiqiang.(2021).Revegetation induced change in soil erodibility as influenced by slope situation on the Loess Plateau.SCIENCE OF THE TOTAL ENVIRONMENT,772,15.
MLA Guo, Mingming,et al."Revegetation induced change in soil erodibility as influenced by slope situation on the Loess Plateau".SCIENCE OF THE TOTAL ENVIRONMENT 772(2021):15.
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