ISWC OpenIR  > 水保所科研产出--SCI  > 2018--SCI
Relative contributions of wind and water erosion to total soil loss and its effect on soil properties in sloping croplands of the Chinese Loess Plateau
Dengfeng Tuo1,2; Mingxiang Xu1; Guangyao Gao2; Xu, MX (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.
SubtypeArticle
2018
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
description.correspondentemailxumx@nwsuaf.edu.cn
Volume633Pages:1032-1040
AbstractWind and water erosion are two dominant types of erosion that lead to soil and nutrient losses. Wind and water erosion may occur simultaneously to varying extents in semi-arid regions. The contributions of wind and water erosion to total erosion and their effects on soil quality, however, remains elusive. We used cesium-137 (Cs-137) inventories to estimate the total soil erosion and used the Revised Universal Soil Loss Equation (RUSLE) to quantify water erosion in sloping croplands. Wind erosion was estimated from the subtraction of the two. We also used Cs-137 inventories to calculate total soil erosion and validate the relationships of the soil quality and erosion at different slope aspects and positions. The results showed that wind erosion (1460 t km(-2) a(-1)) on northwest-facing slope was responsible for approximately 39.7% of the total soil loss, and water erosion (2216 t km(-2) a(-1)) accounted for approximately 60.3%. The erosion rates were 58.8% higher on northwest-than on southeast-facing slopes. Northwest-facing slopes had lower soil organic carbon, total nitrogen, clay, and silt contents than southeast-facing slopes, and thus, the Cs-137 inventories were lower, and the total soil erosions were higher on the northwest-facing slopes. The variations in soil physicochemical properties were related to total soil erosion. The lowest Cs-137 inventories and nutrient contents were recorded at the upper positions on the northwest-facing slopes due to the successive occurrence of more severe wind and water erosion at the same site. The results indicated that wind and water could accelerate the spatial variability of erosion rate and soil properties and cause serious decreases in the nutrient contents in sloping fields. Our research could help researchers develop soil strategies to reduce soil erosion according to the dominant erosion type when it occurs in a hilly agricultural area. (C) 2018 Elsevier B.V. All rights reserved.
KeywordCs-137 Rusle Model Erosion Rate Soil Organic Carbon Slope Aspect
Subject AreaEnvironmental Sciences & Ecology
DOI10.1016/j.scitotenv.2018.03.237
Indexed BySCI
Publication PlacePO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language英语
WOS IDWOS:000432475300100
PublisherELSEVIER SCIENCE BV
Funding OrganizationNational Natural Science Foundation of China [41771318] ; National Natural Science Foundation of China [41771318] ; National Key Research and Development Program of China [2016YFC0501602] ; National Key Research and Development Program of China [2016YFC0501602]
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Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8193
Collection水保所科研产出--SCI_2018--SCI
Corresponding AuthorXu, MX (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.
Affiliation1.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China
Recommended Citation
GB/T 7714
Dengfeng Tuo,Mingxiang Xu,Guangyao Gao,et al. Relative contributions of wind and water erosion to total soil loss and its effect on soil properties in sloping croplands of the Chinese Loess Plateau[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,633:1032-1040.
APA Dengfeng Tuo,Mingxiang Xu,Guangyao Gao,&Xu, MX .(2018).Relative contributions of wind and water erosion to total soil loss and its effect on soil properties in sloping croplands of the Chinese Loess Plateau.SCIENCE OF THE TOTAL ENVIRONMENT,633,1032-1040.
MLA Dengfeng Tuo,et al."Relative contributions of wind and water erosion to total soil loss and its effect on soil properties in sloping croplands of the Chinese Loess Plateau".SCIENCE OF THE TOTAL ENVIRONMENT 633(2018):1032-1040.
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