Investigation of factors affecting intra-annual variability of evapotranspiration and streamflow under different climate conditions
文献类型：期刊论文
| 作者 | Zhang, Dan1; Liu, Xiaomang2 ; Zhang, Qi1; Liang, Kang2; Liu, Changming2
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| 刊名 | JOURNAL OF HYDROLOGY
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| 出版日期 | 2016-12-01 |
| 卷号 | 543页码:759-769 |
| 关键词 | Intra-annual variability Evapotranspiration Streamflow Affecting factors Attribution Different climate conditions |
| ISSN号 | 0022-1694 |
| DOI | 10.1016/j.jhydrol.2016.10.047 |
| 通讯作者 | Liu, Xiaomang(liuxm@igsnrr.ac.cn) |
| 英文摘要 | Investigating the factors that affect intra-annual evapotranspiration (ET) and streamflow variability is important to regional hydrological cycles and energy balance research. In this study, ET and streamflow variability (defined as their standard deviations) are attributed to precipitation, potential evapotranspiration (ET0) and total water storage change (TWSC) based on a Budyko-based approach at 282 catchments in China. The results show that the Budyko-based approach satisfactorily simulates the intra-annual ET and streamflow variability (R-2 of 0.63-0.84). The dominant contributor to ET variability is ET under energy-limited condition (aridity index <= 0.76), whereas the dominant contributor is precipitation under equitant (0.76 < aridity index <= 1.35) and water-limited conditions (aridity index 1.35). The contribution of ET0 to ET variability decreases with the aridity index, whereas the contribution of precipitation to ET variability increases with the aridity index. However, the dominant contributor to streamflow variability is precipitation under all the three climate conditions, which is unaffected by the aridity index. TWSC enhances ET variability under energy-limited condition and inhibits ET variability under water-limited and equitant conditions. However, TWSC inhibits streamflow variability under all the three climate conditions. In addition, geography and vegetation also influence the contributors to ET and streamflow variability. The effects of geography on the contributors to streamflow variability are larger than that to ET variability. In contrast, the impacts of vegetation on the contributors to ET variability are larger than that to streamflow variability. This study demonstrates that the mechanism of ET variability under different climate conditions is much more complex than that of streamflow variability, suggesting that more attention should be given to ET for water-energy modeling, hydrological predictions and local water management. (C) 2016 Elsevier B.V. All rights reserved. |
| WOS关键词 | BUDYKOS HYDROLOGICAL MODEL ; SURFACE WIND SPEEDS ; WATER-BALANCE ; INTERANNUAL VARIABILITY ; VEGETATION CHANGES ; NDVI DATA ; CATCHMENT ; EVAPORATION ; CHINA ; SATELLITE |
| 资助项目 | Natural Science Foundation of China[41401032] ; Natural Science Foundation of China[41330529] ; Natural Science Foundation of China[41501032] ; Natural Sciences Foundation of Jiangsu Province[BK20141059] |
| WOS研究方向 | Engineering ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000390735900046 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | Natural Science Foundation of China ; Natural Sciences Foundation of Jiangsu Province |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/65276]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Liu, Xiaomang |
| 作者单位 | 1.Chinese Acad Sci, Nanjing Inst Geog & Limnol, Key Lab Watershed Geog Sci, Nanjing, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Dan,Liu, Xiaomang,Zhang, Qi,et al. Investigation of factors affecting intra-annual variability of evapotranspiration and streamflow under different climate conditions[J]. JOURNAL OF HYDROLOGY,2016,543:759-769. |
| APA | Zhang, Dan,Liu, Xiaomang,Zhang, Qi,Liang, Kang,&Liu, Changming.(2016).Investigation of factors affecting intra-annual variability of evapotranspiration and streamflow under different climate conditions.JOURNAL OF HYDROLOGY,543,759-769. |
| MLA | Zhang, Dan,et al."Investigation of factors affecting intra-annual variability of evapotranspiration and streamflow under different climate conditions".JOURNAL OF HYDROLOGY 543(2016):759-769. |
入库方式： OAI收割
来源：地理科学与资源研究所
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