Variable tree rooting strategies are key for modelling the distribution, productivity and evapotranspiration of tropical evergreen forests
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F21%3A73609136" target="_blank" >RIV/61989592:15310/21:73609136 - isvavai.cz</a>
Result on the web
<a href="https://bg.copernicus.org/articles/18/4091/2021/" target="_blank" >https://bg.copernicus.org/articles/18/4091/2021/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5194/bg-18-4091-2021" target="_blank" >10.5194/bg-18-4091-2021</a>
Alternative languages
Result language
angličtina
Original language name
Variable tree rooting strategies are key for modelling the distribution, productivity and evapotranspiration of tropical evergreen forests
Original language description
A variety of modelling studies have suggested tree rooting depth as a key variable to explain evapotranspiration rates, productivity and the geographical distribution of evergreen forests in tropical South America. However, none of those studies have acknowledged resource investment, timing and physical constraints of tree rooting depth within a competitive environment, undermining the ecological realism of their results. Here, we present an approach of implementing variable rooting strategies and dynamic root growth into the LPJmL4.0 (Lund-Potsdam-Jena managed Land) dynamic global vegetation model (DGVM) and apply it to tropical and sub-tropical South America under contemporary climate conditions. We show how competing rooting strategies which underlie the trade-off between above- and belowground carbon investment lead to more realistic simulation of intra-annual productivity and evapotranspiration and consequently of forest cover and spatial biomass distribution. We find that climate and soil depth determine a spatially heterogeneous pattern of mean rooting depth and below-ground biomass across the study region. Our findings support the hypothesis that the ability of evergreen trees to adjust their rooting systems to seasonally dry climates is crucial to explaining the current dominance, productivity and evapotranspiration of evergreen forests in tropical South America.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10618 - Ecology
Result continuities
Project
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Continuities
N - Vyzkumna aktivita podporovana z neverejnych zdroju
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Biogeosciences
ISSN
1726-4170
e-ISSN
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Volume of the periodical
18
Issue of the periodical within the volume
13
Country of publishing house
DE - GERMANY
Number of pages
26
Pages from-to
4091-4116
UT code for WoS article
000672754700001
EID of the result in the Scopus database
2-s2.0-85110239529