Variability in fine root decomposition after forest thinning: effects of harvest intensity and root size
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F24%3A43925706" target="_blank" >RIV/62156489:43410/24:43925706 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/s10342-024-01729-2" target="_blank" >https://doi.org/10.1007/s10342-024-01729-2</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10342-024-01729-2" target="_blank" >10.1007/s10342-024-01729-2</a>
Alternative languages
Result language
angličtina
Original language name
Variability in fine root decomposition after forest thinning: effects of harvest intensity and root size
Original language description
Fine root decomposition is an important driver of forest carbon (C) and nutrient cycling. Harvesting operations may affect fine root decomposition rates by altering root properties and environmental conditions, but our understanding of root dynamics is limited. In this study, we investigated the chemistry, mass loss, element release (C, nitrogen (N), and phosphorus (P)), and compound release (lignin and cellulose) of decaying fine roots in a 26 year-old Chinese fir plantation seven years after low- and high-intensity thinning (30% and 70% tree removal) using two root size classes (< 1 mm and 1-2 mm diameter). Low-intensity thinning (LIT) did not affect mass loss in either fine root class or the release of fine root elements or compounds during decomposition. Similarly, high-intensity thinning (HIT) had no effect on the decomposition of large fine roots. However, compared with LIT and no thinning, HIT reduced the decay rates and lignin and cellulose losses of small fine roots. This reduction was related to an increase in the root lignocellulose index (lignin/[lignin + cellulose]) and a decrease in soil invertase activity. Interestingly, thinning did not affect root C, N, or P loss during decomposition. In summary, our results suggest that thinning intensity as well as root size and chemistry should be considered when studying fine root dynamics in managed forests.
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
40102 - Forestry
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Journal of Forest Research
ISSN
1612-4669
e-ISSN
1612-4677
Volume of the periodical
143
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
1805-1818
UT code for WoS article
001296484400001
EID of the result in the Scopus database
2-s2.0-85201811788