GSTDTAP  > 资源环境科学
DOI10.1029/2018WR023217
Determining and Modeling Dominant Processes of Interrill Soil Erosion
Zhang, X. C.
2019
发表期刊WATER RESOURCES RESEARCH
ISSN0043-1397
EISSN1944-7973
出版年2019
卷号55期号:1页码:4-20
文章类型Article
语种英语
国家USA
英文摘要

Understanding the dominant process of interrill soil erosion is imperative to better modeling interrill sediment delivery rates. The objectives are to (1) determine the limiting erosion process (detachment vs. transport) that controls interrill erosion under the study conditions, (2) quantify the effects of water and/or sediment influxes from upslope on downslope sediment transport and interrill erosion, and (3) evaluate the ability of commonly used hydraulic parameters for simulating interrill sediment delivery. Runoff, sediment delivery, and raindrop splash were simultaneously collected from two flumes (1.8mx0.5m) and a 2.5-cm slot between the flumes for three intensities of 60, 90, and 120mm/hr at three slopes of 9%, 18%, and 27% under two cover treatments. Results showed that slot splash rates were consistently greater than flume wash rates, indicating that sediment transport capacity limited interrill sediment delivery under the study conditions. Soil detachment by raindrop impact was more influenced by surface water depth, while sediment transport capacity by flow velocity. The former played a bigger role in determining interill sediment delivery under detachment-limited cases while the latter under transport-limited conditions. Linear correlation coefficients between sediment delivery rates and hydraulic predictors were 0.545 for shear stress, 0.946 for stream power, 0.867 for unit stream power, and 0.948 for an empirical lumped model that includes a rainfall intensity term. Stream power and the empirical model were better predictors for interrill sediment delivery. However, their predictive abilities need to be assessed more rigorously at various impact levels of rainfall kinetic energy.


英文关键词interrill erosion process interrill erosion modeling raindrop detachment raindrop-impacted flow transport
领域资源环境
收录类别SCI-E
WOS记录号WOS:000459536500001
WOS关键词SEDIMENT TRANSPORT CAPACITY ; RAINDROP-IMPACT ; SLOPE STEEPNESS ; PARTICLE-SIZE ; WASH DYNAMICS ; OVERLAND-FLOW ; SHEET EROSION ; DETACHMENT ; RUNOFF ; SPLASH
WOS类目Environmental Sciences ; Limnology ; Water Resources
WOS研究方向Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/21550
专题资源环境科学
作者单位USDA ARS, Grazinglands Res Lab, El Reno, OK 73036 USA
推荐引用方式
GB/T 7714
Zhang, X. C.. Determining and Modeling Dominant Processes of Interrill Soil Erosion[J]. WATER RESOURCES RESEARCH,2019,55(1):4-20.
APA Zhang, X. C..(2019).Determining and Modeling Dominant Processes of Interrill Soil Erosion.WATER RESOURCES RESEARCH,55(1),4-20.
MLA Zhang, X. C.."Determining and Modeling Dominant Processes of Interrill Soil Erosion".WATER RESOURCES RESEARCH 55.1(2019):4-20.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zhang, X. C.]的文章
百度学术
百度学术中相似的文章
[Zhang, X. C.]的文章
必应学术
必应学术中相似的文章
[Zhang, X. C.]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。