Articles | Volume 26, issue 22
Hydrol. Earth Syst. Sci., 26, 5773–5791, 2022
https://doi.org/10.5194/hess-26-5773-2022
Hydrol. Earth Syst. Sci., 26, 5773–5791, 2022
https://doi.org/10.5194/hess-26-5773-2022
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.