Home About Browse Search
Svenska


Drought reduces water uptake in beech from the drying topsoil, but no compensatory uptake occurs from deeper soil layers

Gessler, Arthur and Bachli, Lukas and Rouholahnejad Freund, Elham and Treydte, Kerstin and Schaub, Marcus and Haeni, Matthias and Weiler, Markus and Seeger, Stefan and Marshall, John and Hug, Christian and Zweifel, Roman and Hagedorn, Frank and Rigling, Andreas and Saurer, Matthias and Meusburger, Katrin (2021). Drought reduces water uptake in beech from the drying topsoil, but no compensatory uptake occurs from deeper soil layers. New Phytologist. 233 , 194-206
[Research article]

[img] PDF
1MB

Abstract

The intensity and frequency of droughts events are projected to increase in future with expected adverse effects for forests. Thus, information on the dynamics of tree water uptake from different soil layers during and after drought is crucial. We applied an in situ water isotopologue monitoring system to determine the oxygen isotope composition in soil and xylem water of European beech with a 2-h resolution together with measurements of soil water content, transpiration and tree water deficit. Using a Bayesian isotope mixing model, we inferred the relative and absolute contribution of water from four different soil layers to tree water use. Beech took up more than 50% of its water from the uppermost 5 cm soil layer at the beginning of the 2018 drought, but then reduced absolute water uptake from the drying topsoil by 84%. The trees were not able to quantitatively compensate for restricted topsoil water availability by additional uptake from deeper soil layers, which is related to the fine root depth distribution. Absolute water uptake from the topsoil was restored to pre-drought levels within 3 wk after rewetting. These uptake patterns help to explain both the drought sensitivity of beech and its high recovery potential after drought release.

Authors/Creators:Gessler, Arthur and Bachli, Lukas and Rouholahnejad Freund, Elham and Treydte, Kerstin and Schaub, Marcus and Haeni, Matthias and Weiler, Markus and Seeger, Stefan and Marshall, John and Hug, Christian and Zweifel, Roman and Hagedorn, Frank and Rigling, Andreas and Saurer, Matthias and Meusburger, Katrin
Title:Drought reduces water uptake in beech from the drying topsoil, but no compensatory uptake occurs from deeper soil layers
Series Name/Journal:New Phytologist
Year of publishing :2021
Volume:233
Page range:194-206
Number of Pages:13
Publisher:WILEY
ISSN:0028-646X
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Soil Science
Keywords:Bayesian isotope mixing model, drought, drought release, European beech (Fagus sylvatica), oxygen isotopes, soil water, tree water use, xylem water
URN:NBN:urn:nbn:se:slu:epsilon-p-114170
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-114170
Additional ID:
Type of IDID
DOI10.1111/nph.17767
Web of Science (WoS)000707360400001
ID Code:26344
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Forest Ecology and Management
Deposited By: SLUpub Connector
Deposited On:20 Dec 2021 07:25
Metadata Last Modified:20 Dec 2021 07:31

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits