An analytical approach to separate climate and human contributions to basin streamflow variability
文献类型：期刊论文
| 作者 | Li Changbin1; Wang Liuming1; Wang Wanrui1; Qi Jiaguo2; Yang Linshan3; Zhang Yuan1; Wu Lei1; Cui Xia1; Wang Peng4 |
| 刊名 | JOURNAL OF HYDROLOGY
 |
| 出版日期 | 2018-04-01 |
| 卷号 | 559页码:30-42 |
| 关键词 | Effectiveness coefficients Streamflow variation Climate change Human activities Contribution |
| ISSN号 | 0022-1694 |
| DOI | 10.1016/j.jhydrol.2018.02.019 |
| 通讯作者 | Li Changbin(licb@lzu.edu.cn) |
| 英文摘要 | Climate variability and anthropogenic regulations are two interwoven factors in the ecohydrologic system across large basins. Understanding the roles that these two factors play under various hydrologic conditions is of great significance for basin hydrology and sustainable water utilization. In this study, we present an analytical approach based on coupling water balance method and Budyko hypothesis to derive effectiveness coefficients (ECs) of climate change, as a way to disentangle contributions of it and human activities to the variability of river discharges under different hydro-transitional situations. The climate dominated streamflow change (Delta Q(c)) by EC approach was compared with those deduced by the elasticity method and sensitivity index. The results suggest that the EC approach is valid and applicable for hydrologic study at large basin scale. Analyses of various scenarios revealed that contributions of climate change and human activities to river discharge variation differed among the regions of the study area. Over the past several decades, climate change dominated hydro-transitions from dry to wet, while human activities played key roles in the reduction of streamflow during wet to dry periods. Remarkable decline of discharge in upstream was mainly due to human interventions, although climate contributed more to runoff increasing during dry periods in the semi-arid downstream. Induced effectiveness on streamflow changes indicated a contribution ratio of 49% for climate and 51% for human activities at the basin scale from 1956 to 2015. The mathematic derivation based simple approach, together with the case example of temporal segmentation and spatial zoning, could help people understand variation of river discharge with more details at a large basin scale under the background of climate change and human regulations. (C) 2018 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI ; SSCI |
| WOS关键词 | WATER-BALANCE ; RIVER-BASIN ; HYDROLOGICAL MODEL ; VEGETATION CHANGES ; RUNOFF ; CHINA ; EVAPOTRANSPIRATION ; IMPACTS ; SCALE ; MANAGEMENT |
| WOS研究方向 | Engineering ; Geology ; Water Resources |
| WOS类目 | Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000430902000003 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557841 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Li Changbin |
| 作者单位 | 1.Lanzhou Univ, Coll Earth & Environm Sci, Minist Educ, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China 2.Michigan State Univ, Ctr Global Change & Earth Observat, E Lansing, MI 48823 USA 3.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Gansu, Peoples R China 4.Yellow River Conservancy Commiss, Hydrol Bur, Zhengzhou 450004, Henan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Changbin,Wang Liuming,Wang Wanrui,et al. An analytical approach to separate climate and human contributions to basin streamflow variability[J]. JOURNAL OF HYDROLOGY,2018,559:30-42. |
| APA | Li Changbin.,Wang Liuming.,Wang Wanrui.,Qi Jiaguo.,Yang Linshan.,...&Wang Peng.(2018).An analytical approach to separate climate and human contributions to basin streamflow variability.JOURNAL OF HYDROLOGY,559,30-42. |
| MLA | Li Changbin,et al."An analytical approach to separate climate and human contributions to basin streamflow variability".JOURNAL OF HYDROLOGY 559(2018):30-42. |
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来源：寒区旱区环境与工程研究所
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