IMHE OpenIR  > 山地表生过程与生态调控重点实验室
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
2018
Source PublicationWATER RESOURCES RESEARCH
ISSN0043-1397
EISSN1944-7973
Volume54Issue:6Pages:4180-4192
SubtypeArticle
Contribution Rank1
AbstractEvapotranspiration (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.
Keywordcomplementary relationship evapotranspiration elevation gradient forest shrub
DOI10.1029/2018WR022645
Indexed BySCI
WOS KeywordLAND-SURFACE EVAPORATION ; COMPLEMENTARY RELATIONSHIP ; REGIONAL EVAPOTRANSPIRATION ; MONSOON REGION ; MODELS ; TEMPERATURE ; FOREST ; WATER ; FLUX ; PRECIPITATION
Language英语
Quartile1区
Funding ProjectChinese Academy of Sciences[QYZDJ-SSW-DQC006] ; National Natural Science Foundation of China[41790431] ; National Natural Science Foundation of China[41401044]
TOP
WOS Research AreaEnvironmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
WOS SubjectEnvironmental Sciences ; Limnology ; Water Resources
WOS IDWOS:000440309900023
Funding OrganizationChinese Academy of Sciences ; National Natural Science Foundation of China
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://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 AuthorWang, Genxu
Affiliation1.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.
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