Magnitude and factors influencing soil loss and sedimentation in the Mun River Basin, Thailand
文献类型：期刊论文
| 作者 | Bridhikitti, Arika1,2; Ruamchalerm, Pajanun1; Keereesuwannakul, Mathawut1; Prabamroong, Thayukorn3; Liu, Gaohuan4; Huang, Chong4 |
| 刊名 | CATENA
 |
| 出版日期 | 2022-03-01 |
| 卷号 | 210页码:15 |
| 关键词 | Universal Soil Loss Equation Sediment Deposition Mun River Basin |
| ISSN号 | 0341-8162 |
| DOI | 10.1016/j.catena.2021.105872 |
| 通讯作者 | Bridhikitti, Arika(arika.bri@mahidol.edu) |
| 英文摘要 | Previous studies have shown potentially high soil loss in the Mun River Basin, the largest sub-basin of the Lower Mekong Region in Thailand, due to its rapid land cover changes, agricultural practices, and soil erodibility properties. This study aims to estimate the soil loss and sedimentation rates in the Mun River Basin using the analysis of long-term sediment loading data from the Royal Irrigation Department (RID), GIS-based Revised Universal Soil Loss Equation (RUSLE) approximation, and sediment core analyses. This study found that a high loss (> 12.5 ton ha(- 1) yr(- 1)) and RID sediment loading rate were predominant in the upper basin. The support practice was most sensitive to the loss, but during extreme rainfall events (El Ni(n)~o Southern Oscillation), the role of rainfall intensity was more pronounced. Therefore, mechanical measures should be adopted in combination with the soil-water conservation practices to mitigate the effects in eroding agricultural areas. Sediment core analyses revealed that the highest sediment deposition rate was up to 5.2 cm yr(- 1) in the middle part of the Mun River Basin, primarily due to the floodplain lowland characteristics and repeated flooding events. Several factors influenced the sediment deposition rate: installation of dams or check dams, waterway maintenance, upstream land cover, water plant outgrowth, and flooding. The RID sediment loading also suggests that sediment mass transfer to the Mekong River was highly contributed from the lower basin, where the sediment from the upper part was either trapped by the dams or deposited within the channel. |
| WOS关键词 | LAND-USE CHANGES ; LOSS EQUATION ; EROSION ; SYSTEM ; CLIMATE |
| 资助项目 | National Research Council of Thailand ; National Natural Science Foundation of China |
| WOS研究方向 | Geology ; Agriculture ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000794856500001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Research Council of Thailand ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/176849]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Bridhikitti, Arika |
| 作者单位 | 1.Mahidol Univ, Sch Interdisciplinary Studies, Environm Engn & Disaster Management Program, Kanchanaburi Campus,199 Moo 9, Kanchanaburi 71150, Thailand 2.Mahidol Univ, Earth Sci Res Ctr, Kanchanaburi Campus,199 Moo 9, Saiyok Dist 71150, Kanchanaburi, Thailand 3.Mahasarakham Univ, Fac Environm & Resource Studies, Maha Sarakham 44150, Thailand 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bridhikitti, Arika,Ruamchalerm, Pajanun,Keereesuwannakul, Mathawut,et al. Magnitude and factors influencing soil loss and sedimentation in the Mun River Basin, Thailand[J]. CATENA,2022,210:15. |
| APA | Bridhikitti, Arika,Ruamchalerm, Pajanun,Keereesuwannakul, Mathawut,Prabamroong, Thayukorn,Liu, Gaohuan,&Huang, Chong.(2022).Magnitude and factors influencing soil loss and sedimentation in the Mun River Basin, Thailand.CATENA,210,15. |
| MLA | Bridhikitti, Arika,et al."Magnitude and factors influencing soil loss and sedimentation in the Mun River Basin, Thailand".CATENA 210(2022):15. |
入库方式： OAI收割
来源：地理科学与资源研究所
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