Geohazards mitigation strategies simulation and evaluation based on surface runoff depth: A case study in Bailong River basin
文献类型：期刊论文
| 作者 | Li, Kai1; Yue, Dongxia1; Guo, Jianjun2; Jiang, Fan1; Zeng, Jianjun1; Zou, Mingliang1; Segarra, Duardo3 |
| 刊名 | CATENA
 |
| 出版日期 | 2019-02-01 |
| 卷号 | 173页码:1-8 |
| 关键词 | Ecological restoration SWAT Runoff cenario analysis |
| ISSN号 | 0341-8162 |
| DOI | 10.1016/j.catena.2018.09.035 |
| 通讯作者 | Yue, Dongxia(dxyue@lzu.edu.cn) |
| 英文摘要 | Geohazards often cause a lot of damage to human life and property. Among the geohazard mitigation measures, ecological restoration engineering is an ecomonic and widely-used one, but the effectiveness varies with the alternatives' settings and the local stand conditions, and there is a lack of effective means to assess it. The objective of this paper is to evaluate the effectiveness of vegetation restoration alternatives on mitigating geohazards in Bailong River Basin (BRB), where the soil erosion and debris flow are very severe. Given the significance of surface hydrological process in the formation of geohazards, the surface runoff depth (SRD) simulated by the Soil and Water Assessment Tool (SWAT) was chosen to evaluate the effectiveness of the mitigation alternatives. We designed four groups of ecological restoration scenarios, among which the first three groups returned the cropland with slope above 0, 15 and 25 degrees, respectively, to one type of vegetation from evergreen forest, deciduous forest, mingled forest, shrub and grassland. The fourth group returned two slope levels of cropland to combination of two from the above five vegetation types. At the basin level, it was shown that all the alternatives could reduce the SRD. The evergreen forest alternative performs better than other vegetation types, and converting cropland above 15 degrees is more efficient than converting cropland above 0 and 25 degrees. The combination of evergreen and shrub in group 4 reduces SRD the most. At the subbasin level, the spatial heterogeneity of restoration alternatives effectiveness was shown. The reduction rate of SRD at the subbasin level reveals that the restoration measures would perform well in the northeastern basin and the eastern area of midstream. The reduction of SRD per unit returned cropland area reveals that the efficiency of reducing more SRD with less returned cropland is higher in the northeastern basin. Further, a map of most efficient group 4 scenarios at the subbasin level is obtained. Our work is expected to provide information regarding the establishment or improvement of ecological restoration policy in mitigating geohazards. |
| 收录类别 | SCI ; SSCI |
| WOS关键词 | ASSESSMENT-TOOL SWAT ; SOIL-EROSION ; LOESS PLATEAU ; LAND-USE ; SHAANXI PROVINCE ; NORTHWEST CHINA ; NUTRIENT LOSS ; DEBRIS FLOWS ; RESTORATION ; WATER |
| WOS研究方向 | Geology ; Agriculture ; Water Resources |
| WOS类目 | Geosciences, Multidisciplinary ; Soil Science ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000452814300001 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558222 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Yue, Dongxia |
| 作者单位 | 1.Lanzhou Univ, MOE Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resource, Key Lab Desert & Desertificat, Lanzhou 730000, Gansu, Peoples R China 3.Texas Tech Univ, Dept Agr & Appl Econ, Lubbock, TX 79409 USA |
| 推荐引用方式 GB/T 7714 | Li, Kai,Yue, Dongxia,Guo, Jianjun,et al. Geohazards mitigation strategies simulation and evaluation based on surface runoff depth: A case study in Bailong River basin[J]. CATENA,2019,173:1-8. |
| APA | Li, Kai.,Yue, Dongxia.,Guo, Jianjun.,Jiang, Fan.,Zeng, Jianjun.,...&Segarra, Duardo.(2019).Geohazards mitigation strategies simulation and evaluation based on surface runoff depth: A case study in Bailong River basin.CATENA,173,1-8. |
| MLA | Li, Kai,et al."Geohazards mitigation strategies simulation and evaluation based on surface runoff depth: A case study in Bailong River basin".CATENA 173(2019):1-8. |
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来源：寒区旱区环境与工程研究所
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