Impacts of straw mulching in longitudinal furrows on hillslope soil erosion and deposition in the Chinese Mollisol region
文献类型：期刊论文
| 作者 | Shi, Hongqiang2; Zheng, Fenli1,2,3; Zhao, Ting2; Xu, Ximeng1,2,3,4; Liu, Gang1,2,3 |
| 刊名 | SOIL & TILLAGE RESEARCH
 |
| 出版日期 | 2024-11-01 |
| 卷号 | 243页码:11 |
| 关键词 | Furrow straw mulching Magnetic susceptibility Soil erosion -deposition distribution Sediment source Chinese Mollisol region |
| ISSN号 | 0167-1987 |
| DOI | 10.1016/j.still.2024.106178 |
| 英文摘要 | In the Northeast Mollisol region of China, straw mulching has a great effect on preventing soil loss from ridge tillage, but how furrow straw mulching (FSM) impacts the spatial distribution of erosion -deposition and sediment sources in longitudinal ridge tillage systems is still unclear. Therefore, this study was to quantify the effects of the FSM on the spatial distribution of soil erosion -deposition and sediment sources in longitudinal ridge tillage systems by using the magnetism tracing methodology and indoor simulation rainfall experiments. The experimental treatments included two surface treatments: without the FSM (NFSM) and with the FSM of 0.30 kg & sdot; m - 2 amount, two rainfall intensities of 50 and 100 mm h -1 were included; each experiment was run for 60 min at a soil pan with a 5 degrees slope gradient, 6.2 m length, 1.3 m width and 0.7 m depth. The results indicated that, compared with the NFSM treatment, the total slope runoff and soil loss in the FSM treatment at two rainfall intensities were decreased by 41.6 % and 99.5 % and by 37.9 % and 97.7 %, respectively, and the reduction in slope runoff and soil loss decreased with an increase of rainfall intensity. The total mass of sediments intercepted by straw mulching on the entire slope accounted for 36.9 % and 10.4 % of the total soil loss in the NFSM treatment, respectively. Erosion regimes dominated on the hillslope of the NFSM treatment with strong -weak alternation at two rainfall intensities, while for the FSM treatment, only deposition regime was observed at 50 mm h -1 rainfall intensity; a slight change with erosion -deposition on the ridge tops was observed and deposition in the furrows was observed at 100 mm h -1 rainfall intensity. Furthermore, the FSM treatment changed the main sediment source from ridge tops to furrows on the hillslope compared to the NFSM treatment, whose sediment contributions from the ridge tops and the furrows at the two rainfall intensities were approximately 16.4 % and 83.6 %, respectively. In conclusion, FSM should be promoted due to its high efficiency in decreasing slope runoff and intercepting sediments. The findings of this study served as a scientific reference for effectively controlling soil erosion along slopes in the Chinese Mollisol region. |
| WOS关键词 | MAGNETIC TRACER ; SEDIMENT TRANSPORT ; TILLAGE EROSION ; ORGANIC-CARBON ; SURFACE RUNOFF ; WATER EROSION ; RESIDUE ; SLOPE ; FLOW ; SUSCEPTIBILITY |
| 资助项目 | National Key R & D Pro- gram of China[2022YFD1500102] ; National Natural Science Foundation of China[42177326] |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:001255117500001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key R & D Pro- gram of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/206169]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Zheng, Fenli; Liu, Gang |
| 作者单位 | 1.Minist Water Resources, Yangling 712100, Peoples R China 2.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess Pl, Yangling 712100, Peoples R China 3.Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Hongqiang,Zheng, Fenli,Zhao, Ting,et al. Impacts of straw mulching in longitudinal furrows on hillslope soil erosion and deposition in the Chinese Mollisol region[J]. SOIL & TILLAGE RESEARCH,2024,243:11. |
| APA | Shi, Hongqiang,Zheng, Fenli,Zhao, Ting,Xu, Ximeng,&Liu, Gang.(2024).Impacts of straw mulching in longitudinal furrows on hillslope soil erosion and deposition in the Chinese Mollisol region.SOIL & TILLAGE RESEARCH,243,11. |
| MLA | Shi, Hongqiang,et al."Impacts of straw mulching in longitudinal furrows on hillslope soil erosion and deposition in the Chinese Mollisol region".SOIL & TILLAGE RESEARCH 243(2024):11. |
入库方式： OAI收割
来源：地理科学与资源研究所
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