IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Estimation of Soil Erosion to Define the Slope Length of Newly Reconstructed Gentle-Slope Lands in Hilly Mountainous Regions
Han, Zhen1; Zhong, Shouqin1; Ni, Jiupai1; Shi, Zhonglin3; Wei, Chaofu1,2
Corresponding AuthorWei, Chaofu(weicf@swu.edu.cn)
2019-03-18
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume9Pages:11
AbstractFarming plot construction engineering in hilly areas plays an important role in the mechanization, large-scale production and industrialization of agriculture. The method is undertaken to improve water and soil conservation, enhance soil fertility and extend machinery agriculture. However, the positive effects of engineering require years to mature. The properties of newly reconstructed soil are not sufficient, i.e., with poor structure and low water holding capacity, resulting in deterioration of its physical properties and erosion. To date, most studies on plot characteristics and soil properties in farming plot construction engineering have neglected the influence of soil erosion. This paper addresses soil erosion characteristics at sites to define the appropriate slope length for newly reconstructed gentle-slope lands. Six field plots with a 10 degrees slope gradient and different lengths (5, 10, 20, 30, 40, and 50 m) were established under natural rainfall and simulated overland flow conditions. The soil detachment rate, runoff shear stress and stream power exhibited the same trends as runoff and soil loss. The soil erosion characteristics varied at sites with different slope lengths, and the degree of soil erosion reached its minimum on gentle-slope land sites of 30 or 40 m. Therefore, 30-40 m slope lengths may be the recommended range to control soil loss from newly reconstructed gentle-slope lands. The conclusions of this study provide theoretical guidance for farming plot construction engineering, which can promote the sustainable development of cultivated land resources in hilly mountainous regions.
DOI10.1038/s41598-019-41405-9
Indexed BySCI
WOS KeywordINTERRILL EROSION ; OVERLAND-FLOW ; RUNOFF ; IMPACT ; CONSOLIDATION ; SEDIMENT ; TERRACES ; TILLAGE ; PLOTS
Language英语
Funding ProjectNational Key Research and Development Program of China[2017YFD0800505] ; Foundation of Graduate Research and Innovation in Chongqing[CYB18089]
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000461415900003
Funding OrganizationNational Key Research and Development Program of China ; Foundation of Graduate Research and Innovation in Chongqing
PublisherNATURE PUBLISHING GROUP
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/25302
Collection山地表生过程与生态调控重点实验室
Corresponding AuthorWei, Chaofu
Affiliation1.Southwest Univ, Coll Resources & Environm, Chongqing 400715, Peoples R China
2.Minist Agr, Key Lab Arable Land Conservat Southwestern China, Chongqing 400715, Peoples R China
3.Chinese Acad Sci, Key Lab Mt Surface Proc & Ecol Regulat, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
Recommended Citation
GB/T 7714
Han, Zhen,Zhong, Shouqin,Ni, Jiupai,et al. Estimation of Soil Erosion to Define the Slope Length of Newly Reconstructed Gentle-Slope Lands in Hilly Mountainous Regions[J]. SCIENTIFIC REPORTS,2019,9:11.
APA Han, Zhen,Zhong, Shouqin,Ni, Jiupai,Shi, Zhonglin,&Wei, Chaofu.(2019).Estimation of Soil Erosion to Define the Slope Length of Newly Reconstructed Gentle-Slope Lands in Hilly Mountainous Regions.SCIENTIFIC REPORTS,9,11.
MLA Han, Zhen,et al."Estimation of Soil Erosion to Define the Slope Length of Newly Reconstructed Gentle-Slope Lands in Hilly Mountainous Regions".SCIENTIFIC REPORTS 9(2019):11.
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