Temporal variation in soil erosion resistance of steep slopes restored with different vegetation communities on the Chinese Loess Plateau
文献类型：期刊论文
| 作者 | Zhang, Bao-jun1; Zhang, Guang-hui1,2; Yang, Han-yue2; Zhu, Ping-zong2 |
| 刊名 | CATENA
 |
| 出版日期 | 2019-11-01 |
| 卷号 | 182页码:11 |
| ISSN号 | 0341-8162 |
| 关键词 | Soil erosion resistance Temporal variation Vegetation restoration Gullies Chinese Loess Plateau |
| DOI | 10.1016/j.catena.2019.104170 |
| 通讯作者 | Zhang, Guang-hui(ghzhang@bnu.edu.cn) |
| 英文摘要 | Vegetation growth can stimulate the changes in near soil-surface characteristics during a growing season in arid and semi-arid regions, and hence likely induces the temporal variation in soil erosion resistance, reflected by rill erodibility (K-r) and critical shear stress (tau(c)). This study investigated the temporal variations in soil erosion resistance of steep slopes restored with different vegetation communities on the Chinese Loess Plateau. The undisturbed topsoil samples, taken from one control cropland and seven vegetation communities at steep gully slopes, were scoured in a hydraulic flume under six different flow shear stresses. Sampling was conducted for seven times from April 23 to October 10, 2018. Near soil-surface characteristics were simultaneously determined to identify the major influencing factors for the temporal variation in soil erosion resistance. The results showed that the temporal variations in K-r of different vegetation communities differed significantly from that of the control. The relative K-r of vegetation-restored soils decreased exponentially over time. The temporal variations in tau(c) were also significantly different from the control for the vegetated samples. Vegetation restoration was effective to enhance soil erosion resistance, and the grass communities were more effective than shrub communities. Compared to control cropland, the mean K-r of vegetation-restored soils decreased by 72%-96%, while the mean tau(c) increased by 100%-183%. The major factors responsible for the temporal variations in K-r and tau(c) were the seasonal variations in root mass density, soil cohesion, and water stable aggregates. K-r decreased exponentially, while tau(c) increased logarithmically with root mass density, soil cohesion, and water stable aggregates. |
| WOS关键词 | FLOWING WATER EROSION ; DIFFERENT LAND USES ; OVERLAND-FLOW ; DETACHMENT CAPACITY ; CONCENTRATED FLOW ; RILL ERODIBILITY ; TYPICAL GRASSLANDS ; GULLY SLOPES ; RESTORATION ; CRUSTS |
| 资助项目 | National Key Research and Development Program of China[2017YFC0504702] ; State Key Program of National Natural Science Foundation of China[41530858] |
| WOS研究方向 | Geology ; Agriculture ; Water Resources |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000482493700054 |
| 资助机构 | National Key Research and Development Program of China ; State Key Program of National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/69731]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhang, Guang-hui |
| 作者单位 | 1.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Beijing Normal Univ, Fac Geog Sci, Beijing 100875, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Bao-jun,Zhang, Guang-hui,Yang, Han-yue,et al. Temporal variation in soil erosion resistance of steep slopes restored with different vegetation communities on the Chinese Loess Plateau[J]. CATENA,2019,182:11. |
| APA | Zhang, Bao-jun,Zhang, Guang-hui,Yang, Han-yue,&Zhu, Ping-zong.(2019).Temporal variation in soil erosion resistance of steep slopes restored with different vegetation communities on the Chinese Loess Plateau.CATENA,182,11. |
| MLA | Zhang, Bao-jun,et al."Temporal variation in soil erosion resistance of steep slopes restored with different vegetation communities on the Chinese Loess Plateau".CATENA 182(2019):11. |
入库方式： OAI收割
来源：地理科学与资源研究所
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