Effect of soil and water conservation measures on regime-based suspended sediment load during floods
Hu Jinfei1,3; Zhao Guangju1,2; Mu Xingmin1,2; Hörmann Georg4; Tian Peng5; Gao Peng1,2; Sun Wenyi1,2
SubtypeArticle
2020-04
Source PublicationSUSTAINABLE CITIES AND SOCIETY
ISSN2210-6707
description.correspondentemailgjzhao@ms.iswc.ac.cn ; xmmu@ms.iswc.ac.cn
Volume55Issue:2020Pages:102044
Abstract

Understanding the changes in runoff-sediment relationships is a great help for implementing soil and water conservation measures, particularly in regions with severe erosion. We selected a typical coarse sandy  catchment on the Loess Plateau to investigate the changes of the runoff-sediment relationships with a data set of 62 years. A change point occurred in 1979, dividing the runoff and sediment load series into a baseline period (1954–1979) and a changing period (1980–2015). A total of 342 flood events were classified into three regimes using hierarchical
clustering method. Regime A (162 events) was characterized by the shortest duration, lowest flood crest, and the least flow depth. Regime B (165 events) was characterized by a medium runoff depth, medium flow
variability, and medium duration. Regime C merely include fifteen events with longest flood duration, the highest runoff depth, and the largest peak discharge. The sediment yield of flood regime A, B, and C accounted
14.2 % (1.09×108 t), 51.8 % (3.99×108 t), and 34.0 % (2.62×108 t) of the total sediment yield, respectively. The Support vector machines method was applied to established models to predict event sediment yield. It is
demonstrated that the performance of models are good for different flood regimes.

KeywordEvent Scale Flood Regime Hyperconcentrated Flow Support Vector Machines Sediment Yield
DOI10.1016/j.scs.2020.102044
Indexed BySCI
Language英语
WOS IDWOS:000516721000015
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/9167
Collection水保所2018--2020届毕业生论文(学位论文、期刊论文)
Affiliation1.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Xinong Road 26, Yangling, 712100, Shaanxi Province, China
2.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, 26 Xinong Road, Yangling, 712100, Shaanxi Province, China
3.University of Chinese Academy of Sciences, Beijing, 100049, China
4.Christian-Albrechts-Unversität Kiel, Ecology Centre, Department of Hydrology and Water Resources Management, Olshausen str. 40, D-24098, Kiel, Germany
5.College of Resources and Environment, Northwest A&F University, 26 Xinong Road, Yangling, 712100, Shaanxi Province, China
Recommended Citation
GB/T 7714
Hu Jinfei,Zhao Guangju,Mu Xingmin,et al. Effect of soil and water conservation measures on regime-based suspended sediment load during floods[J]. SUSTAINABLE CITIES AND SOCIETY,2020,55(2020):102044.
APA Hu Jinfei.,Zhao Guangju.,Mu Xingmin.,Hörmann Georg.,Tian Peng.,...&Sun Wenyi.(2020).Effect of soil and water conservation measures on regime-based suspended sediment load during floods.SUSTAINABLE CITIES AND SOCIETY,55(2020),102044.
MLA Hu Jinfei,et al."Effect of soil and water conservation measures on regime-based suspended sediment load during floods".SUSTAINABLE CITIES AND SOCIETY 55.2020(2020):102044.
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