Effects of water discharge rate and slope gradient on runoff and sediment yield related to tillage erosion
文献类型：期刊论文
| 作者 | Dai, Jiadong1,2,6; Zhang, Jianhui1,2; Zhang, Zehong5; Jia, Lizhi4; Xu, Haichao1,2,6; Wang, Yong3; Zhang Jianhui ; Xu Haichao
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| 刊名 | ARCHIVES OF AGRONOMY AND SOIL SCIENCE
 |
| 出版日期 | 2020-06-21 |
| 页码 | 13 |
| 关键词 | Tillage erosion water discharge slope gradient runoff yield sediment yield |
| ISSN号 | 0365-0340 |
| DOI | 10.1080/03650340.2020.1766676 |
| 通讯作者 | Zhang, Jianhui(zjh@imde.ac.cn) |
| 英文摘要 | Tillage erosion coupled with water erosion complicates soil erosion process on hilly croplands. This study aims to investigate the role of water discharge and slope gradient in the impact of tillage erosion on runoff and sediment yield by simulated tillage and scouring experiments. Results show that simulated tillage duration (10-, 20-, 30-, 35-, 40-year tillage) had positive effect on runoff yield, while soil infilling in rill by tillage (12, 21 kg m(-1)) retarded runoff yield. Sediment yield by overland flow is closely related to soil redistribution by tillage. Water discharge rate positively promoted the impact of tillage durations on runoff and sediment yield. In the premise of rill infilling, sediment yield increased significantly with increasing slope gradient, while runoff yield decreased by 29.3%, 1.7% and 1.3% for 0, 12, 21 kg m(-1)soil flux at the slope gradient of 15 degrees compared with those for the slope gradient of 10 degrees, respectively, implying a coupling relationship between rill infilling and slope gradient. Our results indicate that tillage erosion can alter hydrologic processes of the hillslope and exacerbate sediment yield, and water discharge and slope gradient can reinforce the impact of tillage erosion on runoff and sediment yield. |
| WOS关键词 | SOIL-EROSION ; RAINFALL INTENSITY ; INTERRILL EROSION ; TRANSLOCATION ; AREA ; LANDSCAPE ; IMPACT ; RILLS |
| 资助项目 | National Natural Science Foundation of China[41877069] ; National Natural Science Foundation of China[41571267] ; 135 Strategic Program of the Institute of Mountain Hazards and Environment, CAS[SDS-135-1702] |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000546478600001 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 资助机构 | National Natural Science Foundation of China ; 135 Strategic Program of the Institute of Mountain Hazards and Environment, CAS |
| 源URL | [http://ir.imde.ac.cn/handle/131551/35194]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 通讯作者 | Zhang, Jianhui; Zhang Jianhui |
| 作者单位 | 1.Minist Water Conservancy & Power, Chengdu, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Peoples R China 3.Sichuan Agr Univ, Coll Water Conservancy & Hydropower Engn Yaan, Yucheng, Peoples R China 4.Minzu Univ China, Coll Life & Environm Sci, Beijing, Peoples R China 5.China West Normal Univ, Sch Land & Resources, Nanchong, Peoples R China 6.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dai, Jiadong,Zhang, Jianhui,Zhang, Zehong,et al. Effects of water discharge rate and slope gradient on runoff and sediment yield related to tillage erosion[J]. ARCHIVES OF AGRONOMY AND SOIL SCIENCE,2020:13. |
| APA | Dai, Jiadong.,Zhang, Jianhui.,Zhang, Zehong.,Jia, Lizhi.,Xu, Haichao.,...&Xu Haichao.(2020).Effects of water discharge rate and slope gradient on runoff and sediment yield related to tillage erosion.ARCHIVES OF AGRONOMY AND SOIL SCIENCE,13. |
| MLA | Dai, Jiadong,et al."Effects of water discharge rate and slope gradient on runoff and sediment yield related to tillage erosion".ARCHIVES OF AGRONOMY AND SOIL SCIENCE (2020):13. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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