Articles | Volume 26, issue 22
https://doi.org/10.5194/hess-26-5773-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-26-5773-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
16 Nov 2022
Research article |
| 16 Nov 2022
| 16 Nov 2022
The effect of rainfall amount and timing on annual transpiration in a grazed savanna grassland
Institute for Atmospheric and Earth System Research, University of
Helsinki, Helsinki, Finland
Mika Aurela
Finnish Meteorological Institute, Helsinki, Finland
Ville Vakkari
Finnish Meteorological Institute, Helsinki, Finland
Atmospheric Chemistry Research Group, Chemical Resource Beneficiation, North-West University, Potchefstroom, South Africa
Johan P. Beukes
Atmospheric Chemistry Research Group, Chemical Resource Beneficiation, North-West University, Potchefstroom, South Africa
Juha-Pekka Tuovinen
Finnish Meteorological Institute, Helsinki, Finland
Pieter G. Van Zyl
Atmospheric Chemistry Research Group, Chemical Resource Beneficiation, North-West University, Potchefstroom, South Africa
Miroslav Josipovic
Atmospheric Chemistry Research Group, Chemical Resource Beneficiation, North-West University, Potchefstroom, South Africa
Stefan J. Siebert
Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
Tuomas Laurila
Finnish Meteorological Institute, Helsinki, Finland
Markku Kulmala
Institute for Atmospheric and Earth System Research, University of
Helsinki, Helsinki, Finland
Lauri Laakso
Finnish Meteorological Institute, Helsinki, Finland
Atmospheric Chemistry Research Group, Chemical Resource Beneficiation, North-West University, Potchefstroom, South Africa
Janne Rinne
Department of Physical Geography and Ecosystem Science, Lund
University, Lund, Sweden
Nicholas School of the Environment, Duke University, Durham, North
Carolina, USA
Department of Forest Science, University of Helsinki, Helsinki, Finland
Pratt School of Engineering, Duke University, Durham, North Carolina, USA
Gabriel Katul
Nicholas School of the Environment, Duke University, Durham, North
Carolina, USA
Department of Civil and Environmental Engineering, Duke University,
Durham, North Carolina, USA
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Cited
6 citations as recorded by crossref.
- Ecosystem-scale crassulacean acid metabolism (CAM) gas exchange of a sisal (Agave sisalana) plantation M. Skogberg et al. https://doi.org/10.1016/j.agee.2024.109435
- Synergistic dynamics and driving mechanisms of land cover and evapotranspiration under multi-scenario projections from the Pearl River Basin H. Zhong et al. https://doi.org/10.1016/j.ejrh.2026.103149
- Scots pine responses to drought investigated with eddy covariance and sap flow methods P. Dukat et al. https://doi.org/10.1007/s10342-023-01549-w
- Spatiotemporal variations and driver-specific response characteristics of evapotranspiration across different vegetation types in the Qilian Mountains X. Wang et al. https://doi.org/10.1016/j.ejrh.2026.103695
- Transpiration characteristics and environmental controls of orange orchards in the dry-hot valley region of southwest China P. Hou et al. https://doi.org/10.1016/j.agwat.2023.108467
- Reviews and syntheses: Eddy covariance-based evapotranspiration partitioning E. Cochran et al. https://doi.org/10.5194/bg-23-5313-2026
6 citations as recorded by crossref.
- Ecosystem-scale crassulacean acid metabolism (CAM) gas exchange of a sisal (Agave sisalana) plantation M. Skogberg et al. https://doi.org/10.1016/j.agee.2024.109435
- Synergistic dynamics and driving mechanisms of land cover and evapotranspiration under multi-scenario projections from the Pearl River Basin H. Zhong et al. https://doi.org/10.1016/j.ejrh.2026.103149
- Scots pine responses to drought investigated with eddy covariance and sap flow methods P. Dukat et al. https://doi.org/10.1007/s10342-023-01549-w
- Spatiotemporal variations and driver-specific response characteristics of evapotranspiration across different vegetation types in the Qilian Mountains X. Wang et al. https://doi.org/10.1016/j.ejrh.2026.103695
- Transpiration characteristics and environmental controls of orange orchards in the dry-hot valley region of southwest China P. Hou et al. https://doi.org/10.1016/j.agwat.2023.108467
- Reviews and syntheses: Eddy covariance-based evapotranspiration partitioning E. Cochran et al. https://doi.org/10.5194/bg-23-5313-2026
Saved (final revised paper)
Latest update: 12 Sep 2026
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.
The productivity of semiarid grazed grasslands is linked to the variation in rainfall and...
