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Prof. Wuhui Jia
China University of Geosciences (Beijing)

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0 Wetland
0 Vegetation restoration
0 Diurnal fluctuation
0 Phreatophyte
0 Semiarid

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Journal article
Published: 08 February 2021 in Water
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Groundwater evapotranspiration (ETG) estimation is an important issue in semiarid areas for groundwater resources management and environmental protection. It is widely estimated by diurnal water table fluctuations. In this study, the ETG at four sites with different plants was estimated using both diurnal water table and soil moisture fluctuations in the northeastern Mu Us sandy region, in order to identify the groundwater utilization strategy by different dominant phreatophytes. Groundwater level was monitored by ventilatory pressure transducers (Solinst LevelVent, Solinst Canada Ltd.; accuracy ±3 mm), while soil moisture was monitored using EM50 loggers (Decagon Devices Inc., Pullman, USA) in K1 and K14 and simulated by Hydrus-1D in other observation wells. A significant spatial variation of ETG was found within a limited area, indicating a poor representativeness of site ETG for regional estimation. The mean values of ETG are 4.01 mm/d, 6.03 mm/d, 8.96 mm/d, and 12.26 mm/d at the Achnatherum splendens site, Carex stenophylla site, Salix psammophila site and Populus alba site, respectively, for the whole growing season. ETG is more sensitive to depth to water table (DWT) in the Carex stenophylla site than in the Achnatherum splendens site for grass-dominated areas and more sensitive to DWT in the Populus alba site than in Salix psammophila site for tree-dominated areas. Groundwater extinction depths are estimated at 4.1 m, 2.4 m, 7.1 m, and 2.9 m in the Achnatherum splendens site, Carex stenophylla site, Salix psammophila site and Populus alba site, respectively.

ACS Style

Wuhui Jia; Lihe Yin; Maosheng Zhang; Kun Yu; Luchen Wang; Fusheng Hu. Estimation of Groundwater Evapotranspiration of Different Dominant Phreatophytes in the Mu Us Sandy Region. Water 2021, 13, 440 .

AMA Style

Wuhui Jia, Lihe Yin, Maosheng Zhang, Kun Yu, Luchen Wang, Fusheng Hu. Estimation of Groundwater Evapotranspiration of Different Dominant Phreatophytes in the Mu Us Sandy Region. Water. 2021; 13 (4):440.

Chicago/Turabian Style

Wuhui Jia; Lihe Yin; Maosheng Zhang; Kun Yu; Luchen Wang; Fusheng Hu. 2021. "Estimation of Groundwater Evapotranspiration of Different Dominant Phreatophytes in the Mu Us Sandy Region." Water 13, no. 4: 440.