Revegetation induced change in soil erodibility as influenced by slope situation on the Loess Plateau

ISWC OpenIR > 水保所知识产出(1956---)

	Revegetation induced change in soil erodibility as influenced by slope situation on the Loess Plateau
	Mingming Guo 1,2; Zhuoxin Chen 3; Wenlong Wang 1,3
	2021
发表期刊	Science of the Total Environment
卷号	772 期号:1 页码:1-15
摘要	Soil 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 gully- slope)inatypicalwatershedoftheLoessPlateau.Fivesoilerodibilityparameters(saturatedsoilhydraulicconduc- tivity, SHC; mean weight diameter of aggregates, MWD; clayratio, CR; soil disintegration rate,SDR; soil erodibility factor,K) and a comprehensivesoilerodibility index(CSEI) are selectedto clarify the study targets. The results re- vealed that soil properties, root traits, soil erodibility parameters and CSEI were affected by slope situation signif- icantly. Soil and root can explain79.7%, 79.1% and 69.8% of total variance insoil erodibility of loess-tableland, hill- slope and gully-slope, respectively. Slope situation influenced soil erodibility by changing the effects of revegeta- tiononsoilpropertiesandroottraits.Evidently,theslopesituationgreatlychangedtherelationsbetweenCSEIand 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.Thisstudy isofgreatsignificanceinoptimizing the spatial layout of soil and water conservation measures for different slope situations of the Loess Plateau.
收录类别	中文核心期刊要目总览
语种	英语
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/10785
专题	水保所知识产出(1956---)
作者单位	1.Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences 2.StateKey Laboratory ofSoil Erosion and Dryland Farming onthe Loess Plateau,Institute ofWaterand Soil Conservation,Chinese Academy ofSciences and MinistryofWaterResources 3.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Water and Soil Conservation, Northwest A&F University
推荐引用方式 GB/T 7714	Mingming Guo,Zhuoxin Chen,Wenlong Wang. Revegetation induced change in soil erodibility as influenced by slope situation on the Loess Plateau[J]. Science of the Total Environment,2021,772(1):1-15.
APA	Mingming Guo,Zhuoxin Chen,&Wenlong Wang.(2021).Revegetation induced change in soil erodibility as influenced by slope situation on the Loess Plateau.Science of the Total Environment,772(1),1-15.
MLA	Mingming Guo,et al."Revegetation induced change in soil erodibility as influenced by slope situation on the Loess Plateau".Science of the Total Environment 772.1(2021):1-15.

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