| Spatial-Temporal Patterns of Evapotranspiration Along an Elevation Gradient on Mount Gongga, Southwest China | |
Hu, Zhaoyong1,2; Wang, Genxu1 ; Sun, Xiangyang1; Zhu, Meizhuang1,2; Song, Chunlin1,2; Huang, Kewei1,2; Chen, Xiaopeng1,2
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| 2018 | |
| Source Publication | WATER RESOURCES RESEARCH
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| ISSN | 0043-1397 |
| EISSN | 1944-7973 |
| Volume | 54Issue:6Pages:4180-4192 |
| Subtype | Article |
| Contribution Rank | 1 |
| Abstract | Evapotranspiration (ET) is a crucial component of the hydrological cycle in terrestrial ecosystems, but estimating ET in mountainous regions is challenging. In this study, the performance of a generalized nonlinear formulation of the complementary principle while estimating daily ET was evaluated, and the spatial-temporal variation of ET was analyzed across four vegetation types along an elevation gradient on Mount Gongga, Southwest China. The values of the calibrated Priestley and Taylor coefficients for each of the four sites ranged from 0.98 to 1.13. The correlation coefficients between the estimated and observed daily actual evapotranspiration for each of the four sites ranged from 0.71 to 0.92. A markedly asymmetrical complementary relationship existed among the four studied sites, and the values showed less scattered during the wet season. The annual ET rates were 779.12, 781.63, 701.77, and 625.17 mm/yr in the broadleaf forest (BLF), broadleaf and coniferous mixed forest (BCF), coniferous forest (CF), and shrub land (SL), respectively, and showed a decreasing trend of 9.72 mm per 100 m along the elevation gradient. After recalibration of the seasonal (e) values, the estimated annual ET rates increased and were closer to the observed values in BLF and BCF. The results indicate that daily ET in mountainous areas can be estimated using the generalized nonlinear formulation of the complementary relationship together with routine meteorological data alone, but seasonal changes in (e) values should be taken into consideration in forests with deciduous trees. |
| Keyword | complementary relationship evapotranspiration elevation gradient forest shrub |
| DOI | 10.1029/2018WR022645 |
| Indexed By | SCI |
| WOS Keyword | LAND-SURFACE EVAPORATION ; COMPLEMENTARY RELATIONSHIP ; REGIONAL EVAPOTRANSPIRATION ; MONSOON REGION ; MODELS ; TEMPERATURE ; FOREST ; WATER ; FLUX ; PRECIPITATION |
| Language | 英语 |
| Quartile | 1区 |
| Funding Project | Chinese Academy of Sciences[QYZDJ-SSW-DQC006] ; National Natural Science Foundation of China[41790431] ; National Natural Science Foundation of China[41401044] |
| TOP | 是 |
| WOS Research Area | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
| WOS Subject | Environmental Sciences ; Limnology ; Water Resources |
| WOS ID | WOS:000440309900023 |
| Funding Organization | Chinese Academy of Sciences ; National Natural Science Foundation of China |
| Publisher | AMER GEOPHYSICAL UNION |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/23483 |
| Collection | 山地表生过程与生态调控重点实验室 |
| Corresponding Author | Wang, Genxu |
| Affiliation | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Sichuan, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China |
| First Author Affilication | 中国科学院水利部成都山地灾害与环境研究所 |
| Corresponding Author Affilication | 中国科学院水利部成都山地灾害与环境研究所 |
| Recommended Citation GB/T 7714 | Hu, Zhaoyong,Wang, Genxu,Sun, Xiangyang,et al. Spatial-Temporal Patterns of Evapotranspiration Along an Elevation Gradient on Mount Gongga, Southwest China[J]. WATER RESOURCES RESEARCH,2018,54(6):4180-4192. |
| APA | Hu, Zhaoyong.,Wang, Genxu.,Sun, Xiangyang.,Zhu, Meizhuang.,Song, Chunlin.,...&Chen, Xiaopeng.(2018).Spatial-Temporal Patterns of Evapotranspiration Along an Elevation Gradient on Mount Gongga, Southwest China.WATER RESOURCES RESEARCH,54(6),4180-4192. |
| MLA | Hu, Zhaoyong,et al."Spatial-Temporal Patterns of Evapotranspiration Along an Elevation Gradient on Mount Gongga, Southwest China".WATER RESOURCES RESEARCH 54.6(2018):4180-4192. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Spatial-Temporal Pat（2828KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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