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Modelling soil erosion and its response to the soil conservation measures in the black soil catchment, Northeastern China
Fang Haiyan; Sun Liying
2017
Source PublicationSOIL & TILLAGE RESEARCH
ISSN0167-1987
Volume165Pages:23-33
Corresponding AuthorFang Haiyan(fanghy@igsnrr.ac.cn)
AbstractThe black soil in Northeastern China is experiencing severe soil erosion. However, spatially distributed erosion models have scarcely been used to identify the sediment source of a catchment as well as its response to the implemented soil conservation measures (ISCMs). In this study, the WaTEM/SEDEM model was selected and calibrated with sediment yields (SYs) from 25 reservoir catchments in Baiquan County. The validated model was applied to the Shuangyang river catchment to simulate soil erosion, SY and their responses to the ISCMs. The model simulation accuracy was measured by Nash-Sutcliffe efficiency (NSE) and relative root mean square error (RRMSE). A satisfactory result was obtained with NSE of 0.914 and RRMSE of 0.266, respectively. The ISCMs on the farmlands in Shuangyang river catchment greatly reduced sediment delivery to the rivers. The terraced and contour tillage lands became sediment sink and the up/downslope tillage land had lower erosion risk, resulting from the ISCMs on the upper slopes. However, these measures are not effective enough to comprehensively control soil erosion. The erosion rates in the erosion areas within terrace and contour tillage land were still very high. The large area of up/downslope tillage land and the steep slopes with gradients above 25% still suffered severe soil loss. Comprehensive soil conservation should be urgently applied to reduce soil erosion and sediment delivery to the rivers. This study can help guide effective implementation of soil conservation measures at the catchment scale for the black soil region, Northeastern China. (C) 2016 Elsevier B.V. All rights reserved.
KeywordWaTEM/SEDEM Catchment sediment source Soil conservation measures Black soil region
DOI10.1016/j.still.2016.07.015
WOS KeywordLAND-USE CHANGE ; SEDIMENT DELIVERY ; ORGANIC-CARBON ; RED SOIL ; REGION ; RAINFALL ; YIELD ; REDISTRIBUTION ; IMPACT ; FLUXES
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41271305] ; National Natural Science Foundation of China[41571271]
Funding OrganizationNational Natural Science Foundation of China
WOS Research AreaAgriculture
WOS SubjectSoil Science
WOS IDWOS:000385901200004
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/66026
Collection中国科学院地理科学与资源研究所
Corresponding AuthorFang Haiyan
AffiliationChinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Fang Haiyan,Sun Liying. Modelling soil erosion and its response to the soil conservation measures in the black soil catchment, Northeastern China[J]. SOIL & TILLAGE RESEARCH,2017,165:23-33.
APA Fang Haiyan,&Sun Liying.(2017).Modelling soil erosion and its response to the soil conservation measures in the black soil catchment, Northeastern China.SOIL & TILLAGE RESEARCH,165,23-33.
MLA Fang Haiyan,et al."Modelling soil erosion and its response to the soil conservation measures in the black soil catchment, Northeastern China".SOIL & TILLAGE RESEARCH 165(2017):23-33.
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