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Evaluation of Penman-Monteith model applied to a maize field in the arid area of northwest China
Zhao, W. -Z1,2; Ji, X. -B.1,2; Kang, E. -S.1; Zhang, Z. -H.1,2; Jin, B. -W.1,2
2010
Source PublicationHYDROLOGY AND EARTH SYSTEM SCIENCES
Volume14Issue:7Pages:1353-1364
AbstractThe Penman-Monteith (P-M) model has been applied to estimate evapotranspiration in terrestrial ecosystem throughout the world. As shown in many studies, bulk canopy resistance is an especially important factor in the application of the P-M model. In this study, the authors used the Noilhan and Planton (N-P) approach and the Jacobs and De Bruin (J-D) approach to express the bulk canopy resistance. The P-M model was applied to a maize field using the two approaches in an arid area of northwest China and evaluated on the basis of measured half-hourly values from the eddy covariance system. The results indicate that the N-P approach slightly underestimates the bulk canopy resistance, while the J-D approach overestimates it. Over the entire maize growing season, the N-P approach yielded a more consistent estimate of bulk canopy resistance than did the J-D approach. Correspondingly, the P-M model with J-D bulk canopy resistance slightly underestimated the latent heat flux throughout the maize growing season, but overestimated the latent heat flux during the dry season as compared to the N-P approach results. The good fit between the simulated latent heat flux estimated by the P-M model using the N-P approach and the data measured at half-hour time steps demonstrates that the application of this approach is reasonable in relatively homogenous maize fields that are not drought-stressed. Further research to improve the performance of P-M model to simulate evapotranspiration in the cropped fields is discussed.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS Subject ExtendedGeology ; Water Resources
WOS KeywordWATER-RESOURCES ; RIVER-BASIN ; EVAPOTRANSPIRATION ; RESISTANCE ; VEGETATION ; SOIL ; TRANSPIRATION ; CONDUCTANCE ; EVAPORATION ; VAPOR
Indexed BySCI
Language英语
WOS SubjectGeosciences, Multidisciplinary ; Water Resources
WOS IDWOS:000280515100017
PublisherCOPERNICUS GESELLSCHAFT MBH
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/67970
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZhao, W. -Z
Affiliation1.Chinese Acad Sci, Heihe Key Lab Ecohydrol & Integrated River Basin, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
2.Chinese Ecosyst Res Network, Linze Inland River Basin Comprehens Res Stn, Lanzhou 730000, Peoples R China
Recommended Citation
GB/T 7714
Zhao, W. -Z,Ji, X. -B.,Kang, E. -S.,et al. Evaluation of Penman-Monteith model applied to a maize field in the arid area of northwest China[J]. HYDROLOGY AND EARTH SYSTEM SCIENCES,2010,14(7):1353-1364.
APA Zhao, W. -Z,Ji, X. -B.,Kang, E. -S.,Zhang, Z. -H.,&Jin, B. -W..(2010).Evaluation of Penman-Monteith model applied to a maize field in the arid area of northwest China.HYDROLOGY AND EARTH SYSTEM SCIENCES,14(7),1353-1364.
MLA Zhao, W. -Z,et al."Evaluation of Penman-Monteith model applied to a maize field in the arid area of northwest China".HYDROLOGY AND EARTH SYSTEM SCIENCES 14.7(2010):1353-1364.
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