Longer growing seasons cause hydrological regime shifts in central european forests

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F21%3A43920658" target="_blank" >RIV/62156489:43410/21:43920658 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.3390/f12121656" target="_blank" >https://doi.org/10.3390/f12121656</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/f12121656" target="_blank" >10.3390/f12121656</a>

Result language

angličtina

Original language name

Longer growing seasons cause hydrological regime shifts in central european forests

Original language description

In this study, we present evidence for a hydrological regime shift in upland central European forests. Using a combination of long-term data, detailed field measurements and modelling, we show that there is a prolonged and persistent decline in annual runoff:precipitation ratios that is most likely linked to longer growing seasons. We performed a long term (1950-2018) water balance simulation for a Czech upland forest headwater catchment calibrated against measured streamflow and transpiration from deciduous and coniferous stands. Simulations were corrobo-rated by long-term (1965-2018) borehole measurements and historical drought reports. A regime shift from positive to negative catchment water balances likely occurred in the early part of this century. Since 2007, annual runoff: precipitation ratios have been below the long-term average. An-nual average temperatures have increased, but there have been no notable long term trends in pre-cipitation. Since 1980, there has been a pronounced April warming, likely leading to earlier leaf out and higher annual transpiration, making water unavailable for runoff generation and/or soil mois-ture recharge. Our results suggest a regime shift due to second order effects of climate change where increased transpiration associated with a longer growing season leads to a shift from light to water limitation in central European forests. This will require new approaches to managing forests where water limitation has previously not been a problem.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

40102 - Forestry

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Forests

ISSN

1999-4907

e-ISSN

—

Volume of the periodical

12

Issue of the periodical within the volume

12

Country of publishing house

CH - SWITZERLAND

Number of pages

18

Pages from-to

1656

UT code for WoS article

000738105900001

EID of the result in the Scopus database

2-s2.0-85120385767