| Identifying the driving factors of sediment delivery ratio on individual flood events in a long-term monitoring headwater basin | |
Wang Ling-ling1,2; Yao Wen-yi1; Tang Jia-liang ; Wang Wen-long2,3; Hou Xin-xin1
| |
| 2018-08-01 | |
| Source Publication | JOURNAL OF MOUNTAIN SCIENCE
 |
| ISSN | 1672-6316 |
| Volume | 15Issue:8Pages:1825-1835 |
| Abstract | The Sediment Delivery Ratio (SDR) has multi-fold environmental implications both in evaluating the soil and water losses and the effectiveness of conservation measures in watersheds. Various factors, including hydrological regime and watershed properties, may influence the SDR at interannual timescales. However, the effect of certain important dynamic factors, such as rainfall peak distribution, runoff erosion power and sediment bulk density, on the sediment delivery ratio of single flood events (SDRe) has received little attention. The Qiaogou headwater basin is in the hilly-gully region of the Chinese Loess Plateau, and it encompasses a 0.45 km2 catchment. Three large-scale field runoff plots at different geomorphological positions were chosen to obtain the observation data, and the 20-year period between 1986 and 2005 is presented. The results showed that the SDRe of the Qiaogou headwaters varied from 0.49 to 2.77. Among the numerous influential factors, rainfall and runoff were the driving factors causing slope erosion and sediment transport. The rainfall erosivity had a significant positive relationship with the sediment transport modulus (R (2)=0.85, P < 0.01) but had no significant relationship with SDRe. The rainfall peak coefficient was significantly positively correlated with the SDRe (R (2)=0.64, P < 0.05), indicating the influence of rainfall energy distribution on the SDRe. The runoff erosion power index was not only significantly related to the sediment transport modulus (R (2)=0.84, P < 0.01) but also significantly related to the SDRe (R (2)=0.57, P < 0.01). In addition, the relative bulk density was significantly related to the SDRe, indicating that hyper-concentrated flow characteristics contributed to more transported sediment in the catchment. Thus, the rainfall peak coefficient, runoff erosion power and sediment relative bulk density could be used as dynamic indexes to predict the SDRe in the hilly areas of the Chinese Loess Plateau. |
| Keyword | Sediment delivery ratio Single flood events Rainfall erosivity Runoff erosion power Hyper-concentrated flow |
| DOI | 10.1007/s11629-017-4739-7 |
| WOS Keyword | LOESS PLATEAU ; SCALE ; CHINA |
| Language | 英语 |
| Funding Project | National key research priorities program of China[2016YFC0402402] ; National Major Science and Technology Program for Water Pollution Control and Treatment[2017ZX07101001] ; National Natural Science Foundation[41301299] ; Construction Project of Innovative Scientific and Technological Talents in Henan Province[162101510004] |
| WOS Research Area | Environmental Sciences & Ecology |
| WOS Subject | Environmental Sciences |
| WOS ID | WOS:000442239600015 |
| Funding Organization | National key research priorities program of China ; National Major Science and Technology Program for Water Pollution Control and Treatment ; National Natural Science Foundation ; Construction Project of Innovative Scientific and Technological Talents in Henan Province |
| Publisher | SCIENCE PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/23773 |
| Collection | 山地表生过程与生态调控重点实验室 |
| Corresponding Author | Wang Wen-long |
| Affiliation | 1.Minist Water Resources, Yellow River Inst Hydraul Res, Key Lab Loess Plateau Soil Eros & Water Loss Proc, Zhengzhou 450003, Henan, Peoples R China 2.Northwest A&F Univ, Coll Resource & Environm, Xianyang 712100, Shaanxi, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China |
| Corresponding Author Affilication | 中国科学院水利部成都山地灾害与环境研究所 |
| Recommended Citation GB/T 7714 | Wang Ling-ling,Yao Wen-yi,Tang Jia-liang,et al. Identifying the driving factors of sediment delivery ratio on individual flood events in a long-term monitoring headwater basin[J]. JOURNAL OF MOUNTAIN SCIENCE,2018,15(8):1825-1835. |
| APA | Wang Ling-ling,Yao Wen-yi,Tang Jia-liang,Wang Wen-long,&Hou Xin-xin.(2018).Identifying the driving factors of sediment delivery ratio on individual flood events in a long-term monitoring headwater basin.JOURNAL OF MOUNTAIN SCIENCE,15(8),1825-1835. |
| MLA | Wang Ling-ling,et al."Identifying the driving factors of sediment delivery ratio on individual flood events in a long-term monitoring headwater basin".JOURNAL OF MOUNTAIN SCIENCE 15.8(2018):1825-1835. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Identifying the driv（841KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment