Articles | Volume 26, issue 22
https://doi.org/10.5194/hess-26-5773-2022
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, Mika Aurela, Ville Vakkari, Johan P. Beukes, Juha-Pekka Tuovinen, Pieter G. Van Zyl, Miroslav Josipovic, Stefan J. Siebert, Tuomas Laurila, Markku Kulmala, Lauri Laakso, Janne Rinne, Ram Oren, and Gabriel Katul

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on hess-2021-292', Russell Scott, 17 Sep 2021
    • AC1: 'Reply on RC1', Matti Räsänen, 10 Feb 2022
  • RC2: 'Comment on hess-2021-292', Anonymous Referee #2, 03 Jan 2022
    • AC2: 'Reply on RC2', Matti Räsänen, 10 Feb 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
ED: Reconsider after major revisions (further review by editor and referees) (22 Feb 2022) by Loes van Schaik
AR by Matti Räsänen on behalf of the Authors (31 Mar 2022)  Author's response   Author's tracked changes   Manuscript 
ED: Referee Nomination & Report Request started (31 Mar 2022) by Loes van Schaik
RR by Anonymous Referee #2 (28 Apr 2022)
RR by Russell Scott (28 Apr 2022)
ED: Publish subject to minor revisions (review by editor) (21 Aug 2022) by Loes van Schaik
AR by Matti Räsänen on behalf of the Authors (09 Sep 2022)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (31 Oct 2022) by Loes van Schaik
AR by Matti Räsänen on behalf of the Authors (02 Nov 2022)  Manuscript 
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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.