• Shrub water use in Arctic Alaska
    • Jason Clark (Ph.D. student, WERC)
    • February 17, 2017

The tundra biome is experiencing a broad spectrum of ecosystem changes spurred by 20th century warming, including deciduous shrub expansion. We quantified the water use dynamics (sap flux and stem water content) of three common arctic shrub species (Salix alaxensis, S. pulchra, Betula nana) over two growing seasons. The data reveal the environmental controls on arctic tundra shrub water flux and will be critical to predicting how the tundra water balance is expected to change with changing soil and vegetation.


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