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DOI	10.1016/j.ijsrc.2018.10.004
	Modeling aggregate size distribution of eroded sediment resulting from rain-splash and raindrop impacted flow processes
	Saygin, Selen Deviren; Erpul, Gunay
通讯作者	Saygin, Selen Deviren
来源期刊	INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH
ISSN	1001-6279
出版年	2019
卷号	34 期号:2 页码:166-177
英文摘要	Soil susceptibility to detachment and transport sub-processes of erosion is generally controled by the aggregate breakdown mechanism. Measuring particle size and aggregation to the estimate erodibility potential of soils is important under erosive rainfall conditions. The Aggregate Size Distribution (ASD) is one of the most important determinants of soil structure along with soil organic matter content for describing the efficiency of applied, sustainable management strategies. This study aimed to compare the performances of three different aggregate size distribution models to predict the characteristic aggregate size parameter (median diameter, D-50) for eroded sediment from interrill erosion processes of Rain-Splash Transport (RST) and Raindrop Impacted Flow Transport (RIFT). The ASDs of 1143 collected sediment samples from the RST and RIFT processes were measured and modeled by the Log-normal, Fractal, and Weibull approaches. The D-50 value, as a characteristic parameter for aggregate size distributions, derived from the cumulative ASD curve was compared for soils from different land use types and different slope and rainfall intensity conditions. The performance of each model was evaluated using the Mean Square Error (MSE) and Coefficient of Determination (R-2). The Weibull approach was the most accurate model showing the best fit with the lowest MSE values (0.0002 <= MSE <= 0.0048) and having the greatest R-2 values (0.936 <= R-2 <= 0.998) when compared with the Log-normal and Fractal models. Herewith, for semi-arid land use and soil, specific shape and scale parameters for the Weibull distribution, the respective ASDs were successfully re-generated for modeling the eroded sediment of the simulated RST and RIFT interill processes. (C) 2018 International Research and Training Centre on Erosion and Sedimentation/the World Association for Sedimentation and Erosion Research. Published by Elsevier B.V. All rights reserved.
英文关键词	Aggregate size distribution Eroded sediment Log-normal model Fractal model Weibull model
类型	Article
语种	英语
国家	Turkey
收录类别	SCI-E
WOS记录号	WOS:000460129200009
WOS关键词	SOIL ORGANIC-CARBON ; DIFFERENT LAND USES ; PARTICLE-SIZE ; EROSION PROCESSES ; TILLAGE SYSTEMS ; SEMIARID CATCHMENT ; INTERRILL EROSION ; FRACTAL FEATURES ; SLOPE GRADIENT ; OVERLAND-FLOW
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216518
作者单位	Univ Ankara, Fac Agr, Dept Soil Sci & Plant Nutr, TR-06110 Ankara, Turkey
推荐引用方式 GB/T 7714	Saygin, Selen Deviren,Erpul, Gunay. Modeling aggregate size distribution of eroded sediment resulting from rain-splash and raindrop impacted flow processes[J],2019,34(2):166-177.
APA	Saygin, Selen Deviren,&Erpul, Gunay.(2019).Modeling aggregate size distribution of eroded sediment resulting from rain-splash and raindrop impacted flow processes.INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH,34(2),166-177.
MLA	Saygin, Selen Deviren,et al."Modeling aggregate size distribution of eroded sediment resulting from rain-splash and raindrop impacted flow processes".INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH 34.2(2019):166-177.