Erosion-reducing effects of revegetation and fish-scale pits on steep spoil heaps under concentrated runoff on the Chinese Loess Plateau
文献类型：期刊论文
| 作者 | Guo, Wenzhao1,2; Kang, Hongliang1; Wang, Wenlong1,2; Guo, Mingming1; Chen, Zhuoxin1 |
| 刊名 | LAND DEGRADATION & DEVELOPMENT
 |
| 出版日期 | 2020-07-06 |
| 页码 | 12 |
| 关键词 | concentrated runoff mass movement sediment soil erosion spoil heaps vegetation |
| ISSN号 | 1085-3278 |
| DOI | 10.1002/ldr.3643 |
| 通讯作者 | Wang, Wenlong(nwafu_wwl@163.com) |
| 英文摘要 | Massive spoil heaps, formed during production and construction activities, have suffered from severe soil erosion, leading to land degradation and damaging the environment. Fish-scale pits (FSPs) and revegetation (RG) are the most common measures for controlling soil erosion on spoil heaps on the Loess Plateau. To evaluate the effects of FSPs and RG on concentrated runoff erosion, scouring-erosion experiments were conducted on FSP plots, RG plots, and bare plots (the control) in the field on two types of spoil heaps: low gravel content in soil (LGS) and high gravel content in soil (HGS) at various inflow rates. Mass movement was the main cause of the considerable fluctuations in erosion rate and sharply increased the sediment concentration, which could exceed 800 kg m(-3)and cause hyperconcentrated flows. Conversely, the FSP and RG treatments observably reduced the sediment concentration and erosion rate. The erosion-reducing benefits (ERBs) of both the FSPs and RG treatments were significant. However, the ERB of the FSPs treatment was superior to that of the RG treatment under concentrated runoff, especially high-intensity concentrated runoff. The ERB of the FSP treatment was on average 78.5% and 80.9% for the LGS and HGS, respectively. The ERB of the RG treatment was on average 36.4% and 56.5% for the LGS and HGS, respectively. The ERBs of the FSPs and RG treatments for the HGS were greater than those for the LGS. Moreover, gravel inhibited concentrated flow erosion. Our results provide important guidance for preventing soil erosion on abandoned spoil heaps in semiarid regions. |
| WOS关键词 | ROCK FRAGMENT COVER ; SOIL-EROSION ; OVERLAND-FLOW ; SLOPE ; INFILTRATION ; SEDIMENT ; CONSTRUCTION ; VEGETATION ; PROVINCE ; REGION |
| 资助项目 | National Key Research and Development Program of China[2016YFC0501604] ; National Natural Science Foundation of China[41907057] ; National Natural Science Foundation of China[40771127] ; National Natural Science Foundation of China[41671276] |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000545563600001 |
| 出版者 | WILEY |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/162462]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Wenlong |
| 作者单位 | 1.Northwest A&F Univ, Inst Water & Soil Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Wenzhao,Kang, Hongliang,Wang, Wenlong,et al. Erosion-reducing effects of revegetation and fish-scale pits on steep spoil heaps under concentrated runoff on the Chinese Loess Plateau[J]. LAND DEGRADATION & DEVELOPMENT,2020:12. |
| APA | Guo, Wenzhao,Kang, Hongliang,Wang, Wenlong,Guo, Mingming,&Chen, Zhuoxin.(2020).Erosion-reducing effects of revegetation and fish-scale pits on steep spoil heaps under concentrated runoff on the Chinese Loess Plateau.LAND DEGRADATION & DEVELOPMENT,12. |
| MLA | Guo, Wenzhao,et al."Erosion-reducing effects of revegetation and fish-scale pits on steep spoil heaps under concentrated runoff on the Chinese Loess Plateau".LAND DEGRADATION & DEVELOPMENT (2020):12. |
入库方式： OAI收割
来源：地理科学与资源研究所
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