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Evapotranspiration partitioning using a simple isotope-based model in a semiarid marsh wetland in northeastern China
S. C. Zhang, J. Zhang, B. Liu, W. G. Zhang, C. Gong, M. Jiang and X. G. Lv
2018
Source PublicationHydrological Processes
Volume32Issue:4Pages:493-506
Other AbstractThe results showed that although the delta(T) values of S. triqueter and P. australis were rather similar, the mean delta(T) values of the 2 species were different from the values of dE, making it possible to distinguish the relative contributions of E and T through the use of isotopes. The simulation of leaf water using a non-steady-state model indicated obvious deviations in leaf water enrichment (delta(Lb)) from isotopic steady states for both species, especially during early mornings and evenings when relative humidity was highest. The isotopic mass balance showed that E accounted for approximately 60% of ET, and T from S. triqueter and P. australis each contributed approximately 20% to ET; this implied that the transpiration of one reed was equivalent to that of 5.25 individuals of S. triqueter. Using the estimated ratio of T to ET and the measured leaf transpiration, the total ET was estimated to be approximately 10 mm day(-1). Using the NSS-Tr method, the estimated ET was higher than the water loss calculated from the water level gauge. This indicated that the river water and surrounding groundwater were the sources of the marsh wetland, with a supply rate of 8.3 mm day(-1).
Document Type期刊论文
Identifierhttp://ir.iga.ac.cn/handle/131322/9166
Collection湿地生态系统管理学科组
Recommended Citation
GB/T 7714
S. C. Zhang, J. Zhang, B. Liu, W. G. Zhang, C. Gong, M. Jiang and X. G. Lv. Evapotranspiration partitioning using a simple isotope-based model in a semiarid marsh wetland in northeastern China[J]. Hydrological Processes,2018,32(4):493-506.
APA S. C. Zhang, J. Zhang, B. Liu, W. G. Zhang, C. Gong, M. Jiang and X. G. Lv.(2018).Evapotranspiration partitioning using a simple isotope-based model in a semiarid marsh wetland in northeastern China.Hydrological Processes,32(4),493-506.
MLA S. C. Zhang, J. Zhang, B. Liu, W. G. Zhang, C. Gong, M. Jiang and X. G. Lv."Evapotranspiration partitioning using a simple isotope-based model in a semiarid marsh wetland in northeastern China".Hydrological Processes 32.4(2018):493-506.
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