Variations of Runoff-Sediment Processes at Flood Event Scale at a Typical Catchment in the Loess Plateau of China
文献类型：期刊论文
| 作者 | Fan, Xinyi2; Gao, Peng1,2,3; Wu, Changxue2; Chai, Xueke4; Mu, Xingmin1,2,3 |
| 刊名 | WATER
 |
| 出版日期 | 2023-08-01 |
| 卷号 | 15期号:15页码:16 |
| 关键词 | flood events runoff and sediment revegetation Loess Plateau |
| DOI | 10.3390/w15152690 |
| 通讯作者 | Gao, Peng(gaopeng@ms.iswc.ac.cn) |
| 英文摘要 | The flood season is the main period for runoff and sediment yield, and understanding the variations of runoff and sediment of flood events is of great significance for distinguishing the runoff-sediment processes in the Loess Plateau. In this study, we analyzed the variations of runoff and sediment at the flood event scale in the Qiaogou catchment and investigated the influencing factors. The results showed that runoff and sediment of flood events were mainly produced by rainfall with short rainfall duration and heavy rainfall intensity in the study area. Based on the 28 flood events and corresponding precipitation data from the reference period (P-I, 1986-1989) and the revegetation period (P-II, 2001-2009), we analyzed the variations of runoff-sediment processes at the flood event scale in the Qiaogou catchment, a typical catchment of the Loess Plateau. The results showed that the flood variables were lower in the revegetation period than those in the reference period, except for the flood peak discharge time and the flood duration. The sediment transport capacity per unit runoff depth in the revegetation period was weaker than that in the reference period. The hysteresis analysis indicated that the patterns of the hysteretic loop were dominated by the figure-of-eight pattern and the compound pattern, respectively, in the reference period and revegetation period. Compared to the reference period, runoff and sediment-related variables for flood events of counter-clockwise, figure-of-eight, and compound patterns were less in the revegetation period. With similar rainfall conditions, the main reason for the noticeable difference in runoff and sediment of flood events for the two periods was the variations in vegetation cover. The mentioned results indicated that revegetation performed a critical function in the variations of runoff and sediment at the flood event scale. This study revealed the variations of runoff-sediment processes of flood events and their responses to rainfall and revegetation in a typical catchment of the Loess Plateau, which can provide a basis for decision-making on soil erosion management and sustainable development of the ecological environment in the Loess Plateau. |
| WOS关键词 | LAND-USE CHANGE ; WATER DISCHARGE ; RIVER-BASIN ; LOAD ; TRANSPORT ; IMPACTS ; PATTERNS ; YIELD |
| 资助项目 | National Natural Science Foundation of China[U2243211] ; National Natural Science Foundation of China[42277354] |
| WOS研究方向 | Environmental Sciences & Ecology ; Water Resources |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:001045784000001 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/196064]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Gao, Peng |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess Pl, Xianyang 712100, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess Pl, Xianyang 712100, Peoples R China 4.Taiyuan Dongxishan Forest Area Management & Protec, Taiyuan 030000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan, Xinyi,Gao, Peng,Wu, Changxue,et al. Variations of Runoff-Sediment Processes at Flood Event Scale at a Typical Catchment in the Loess Plateau of China[J]. WATER,2023,15(15):16. |
| APA | Fan, Xinyi,Gao, Peng,Wu, Changxue,Chai, Xueke,&Mu, Xingmin.(2023).Variations of Runoff-Sediment Processes at Flood Event Scale at a Typical Catchment in the Loess Plateau of China.WATER,15(15),16. |
| MLA | Fan, Xinyi,et al."Variations of Runoff-Sediment Processes at Flood Event Scale at a Typical Catchment in the Loess Plateau of China".WATER 15.15(2023):16. |
入库方式： OAI收割
来源：地理科学与资源研究所
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