Separating the impacts of climate change and land surface alteration on runoff reduction in the jing river catchment of china
文献类型：期刊论文
| 作者 | Ning, Tingting1,3; Li, Zhi2; Liu, Wenzhao1,3 |
| 刊名 | Catena
 |
| 出版日期 | 2016-12-01 |
| 卷号 | 147页码:80-86 |
| ISSN号 | 0341-8162 |
| 关键词 | Budyko framework Elasticity coefficients Runoff Climate variability Land surface condition Loess plateau |
| DOI | 10.1016/j.catena.2016.06.041 |
| 通讯作者 | Li, zhi(lizhibox@126.com) ; Liu, wenzhao(wenzhaoliu@hotmail.com) |
| 英文摘要 | The loess plateau of china is subject to severe water shortages, and the runoff reduction observed in most watersheds exacerbates the problem. quantifying the contributions of environmental changes to runoff reduction is thus very important for water resources management. taking the jing river catchment as the study area, the changes in runoff for the period of 1961-2010 at three gauge stations the catchment outlet (zhang jia shan, zjs) and the two others from the upper reach (yang jia ping, yjp, and yu luo ping, ylp) were analyzed in this study. using the budyko framework, the spatiotemporal variations of the contributions of precipitation (p), potential evapotranspiration (et0), and land surface conditions (represented by the parameter n in the choudhury-yang equation) to runoff changes were evaluated. a significant downward trend in runoff was detected for the zjs and yjp stations. the sensitivity of the runoff changes to the different environmental factors considered was different. the sensitivity coefficient was the greatest for p, intermediate for et0, and smallest for the land surface condition (n). however, the sensitivity coefficients are becoming greater over time. the decrease in p was the dominant factor in the runoff reduction at the three stations, but its effect was largely offset by the increase in n at ylp. the contribution of land surface alteration to runoff reduction has been increasing in recent years, which indicates that the improvement of vegetation coverage and the construction of terraces and check dams have strengthened their impacts on runoff. therefore, careful attention should be paid to the hydrological effects of soil conservation measures on runoff. (c) 2016 elsevier b.v. all rights reserved. |
| WOS关键词 | BUDYKOS HYDROLOGICAL MODEL ; LOESS-PLATEAU ; WATER-BALANCE ; INTERANNUAL VARIABILITY ; VEGETATION ; STREAMFLOW ; FRAMEWORK ; AFFORESTATION ; ELASTICITY ; HYPOTHESIS |
| WOS研究方向 | Geology ; Agriculture ; Water Resources |
| WOS类目 | Geosciences, Multidisciplinary ; Soil Science ; Water Resources |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000385598800009 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2374851 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Li, Zhi; Liu, Wenzhao |
| 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.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ning, Tingting,Li, Zhi,Liu, Wenzhao. Separating the impacts of climate change and land surface alteration on runoff reduction in the jing river catchment of china[J]. Catena,2016,147:80-86. |
| APA | Ning, Tingting,Li, Zhi,&Liu, Wenzhao.(2016).Separating the impacts of climate change and land surface alteration on runoff reduction in the jing river catchment of china.Catena,147,80-86. |
| MLA | Ning, Tingting,et al."Separating the impacts of climate change and land surface alteration on runoff reduction in the jing river catchment of china".Catena 147(2016):80-86. |
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来源：中国科学院大学
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