Hydrology and Earth System Sciences
Hydrology and Earth System Sciences
Hydrology and Earth System Sciences
Articles | Volume 26, issue 22
Articles | Volume 26, issue 22
Hydrol. Earth Syst. Sci., 26, 5773–5791, 2022
https://doi.org/10.5194/hess-26-5773-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Hydrol. Earth Syst. Sci., 26, 5773–5791, 2022
https://doi.org/10.5194/hess-26-5773-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 22
Research article
16 Nov 2022
Research article | 16 Nov 2022

The effect of rainfall amount and timing on annual transpiration in a grazed savanna grassland

Matti Räsänen et al.

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Short summary
The productivity of semiarid grazed grasslands is linked to the variation in rainfall and transpiration. By combining carbon dioxide and water flux measurements, we show that the annual transpiration is nearly constant during wet years while grasses react quickly to dry spells and drought, which reduce transpiration. The planning of annual grazing strategies could consider the early-season rainfall frequency that was linked to the portion of annual transpiration.
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