Comparisons of three scaling up methods to estimate stand transpiration of a xerophytic shrub (Salix psammophila) in northern China

The water use by short rotation coppices (SRC) has been a focus of ongoing research in the last decades. Nevertheless, investigations that consider site factors and present long-term monitoring of the components of the water balance are rare. This research quantified the tree-based transpiration in the 4th growing season of uncoppiced 1st rotational hybrid poplar stands (Populus deltoides Bart. ex Marsh × P. nigra L. “AF2”) in western Slovakia. The aim of the study was to determine the influence of meteorological and soil-related site conditions on transpiration rates. Three experimental plots were located in the Morava River floodplains, on loamy sand-textured soils with different groundwater accessibilities: higher, low, and fluctuating groundwater level. We measured sap flow (Heat Ratio Method), volumetric water content, matric potential, groundwater level, and meteorological variables throughout the growing season in 2019. The results indicated that transpiration in the three sites was almost constant during that period, which was characterized by distinct conditions. The average cumulative transpiration at the site with a higher groundwater level (1105 mm) was larger than at the site with a lower groundwater level (632 mm) and the site with fluctuating groundwater (863 mm). A principal component analysis (PCA) and correlation analysis identified that the contribution of meteorological and soil-related site variables to transpiration differed among the sites. Soil water availability and groundwater accessibility are critical variables for the water use of poplar SRC. We concluded that the combination of site conditions needs to be reconsidered for the expansion of sustainable short rotation plantations in Europe.

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Water Use of Hybrid Poplar (Populus deltoides Bart. ex Marsh $$\times$$ P. nigra L. “AF2”) Growing Across Contrasting Site and Groundwater Conditions in Western Slovakia

Fontenla-Razzetto

Wahren

Heilig

et al. 2022

Bioenerg. Res.

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Measurement and modelling of Moringa transpiration for improved irrigation management

Ndayakunze,

Steyn,

du Plooy

et al. 2024

Agricultural Water Management

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Rainfall partitioning characteristics and simulation of typical shelter forest in Chinese Mu Us Sandy Land

Zhu,

Shao,

Jia

et al. 2024

Science of The Total Environment

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Comparisons of three scaling up methods to estimate stand transpiration of a xerophytic shrub (Salix psammophila) in northern China

Cited by 3 publications

References 80 publications

Water Use of Hybrid Poplar (Populus deltoides Bart. ex Marsh $$\times$$ P. nigra L. “AF2”) Growing Across Contrasting Site and Groundwater Conditions in Western Slovakia

Water Use of Hybrid Poplar (Populus deltoides Bart. ex Marsh $$\times$$ P. nigra L. “AF2”) Growing Across Contrasting Site and Groundwater Conditions in Western Slovakia

Measurement and modelling of Moringa transpiration for improved irrigation management

Rainfall partitioning characteristics and simulation of typical shelter forest in Chinese Mu Us Sandy Land

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