| Attribution analysis of the spatial variations in potential evapotranspiration on the Loess Plateau of China by a total differential equation | |
| Ning, Tingting1,2; Liu, Wenzhao1; Shen, Hong3; Li, Zhi4 | |
| 刊名 | HYDROLOGY RESEARCH
 |
| 2018-12-01 | |
| 卷号 | 49期号:6页码:1902-1914 |
| 关键词 | Loess Plateau potential evapotranspiration spatial variation total differential equation |
| ISSN号 | 0029-1277 |
| DOI | 10.2166/nh.2018.189 |
| 通讯作者 | Liu, Wenzhao(wzliu@ms.iswc.ac.cn) |
| 英文摘要 | A total differential equation was proposed to assess the driving factors for the spatial variations in potential evapotranspiration (ET0). Using China's Loess Plateau as an example study area, three transects with distinct ET0 gradients in space, i.e., northwest-east, northwest-south and northwest-southwest, were chosen to sample spatially varied ET0 and four climatic variables (solar radiation, actual vapor pressure, wind speed, and mean temperature) at an interval of 10 km. Considered an independent variable, the distance was differentiated to quantify the contribution of each climatic variable to the spatial ET0 variations along each transect. A significant decrease in solar radiation and an increase in actual vapor pressure were identified as the dominant impact factors that led to a decreased ET0 in the northwest-east and northwest-south directions, respectively. As another key contributor, the decreasing wind speed induced a decreasing trend in ET0 from northwest to southwest. The above results implied that the dominant factor(s) for the spatial variations in ET0 differed among the regions. Therefore, the total differential equation is a powerful approach to determine the driving factors and to quantify their individual contribution to the spatial variations in ET0. |
| 收录类别 | SCI |
| WOS关键词 | PAN EVAPORATION ; SPATIOTEMPORAL VARIATIONS ; VEGETATION COVER |
| WOS研究方向 | Water Resources |
| WOS类目 | Water Resources |
| 语种 | 英语 |
| 出版者 | IWA PUBLISHING |
| WOS记录号 | WOS:000452413800015 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2558235 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Liu, Wenzhao |
| 作者单位 | 1.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Gansu, Peoples R China 3.Tsinghua Univ, Dept Hydraul Engn, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China 4.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ning, Tingting,Liu, Wenzhao,Shen, Hong,et al. Attribution analysis of the spatial variations in potential evapotranspiration on the Loess Plateau of China by a total differential equation[J]. HYDROLOGY RESEARCH,2018,49(6):1902-1914. |
| APA | Ning, Tingting,Liu, Wenzhao,Shen, Hong,&Li, Zhi.(2018).Attribution analysis of the spatial variations in potential evapotranspiration on the Loess Plateau of China by a total differential equation.HYDROLOGY RESEARCH,49(6),1902-1914. |
| MLA | Ning, Tingting,et al."Attribution analysis of the spatial variations in potential evapotranspiration on the Loess Plateau of China by a total differential equation".HYDROLOGY RESEARCH 49.6(2018):1902-1914. |
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