Factors Affecting the Leaching of Dissolved Organic Carbon after Tree Dieback in an Unmanaged European Mountain Forest
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F18%3A43897387" target="_blank" >RIV/60076658:12310/18:43897387 - isvavai.cz</a>
Alternative codes found
RIV/60077344:_____/18:00494823
Result on the web
<a href="https://pubs.acs.org/doi/pdf/10.1021/acs.est.8b00478" target="_blank" >https://pubs.acs.org/doi/pdf/10.1021/acs.est.8b00478</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.est.8b00478" target="_blank" >10.1021/acs.est.8b00478</a>
Alternative languages
Result language
angličtina
Original language name
Factors Affecting the Leaching of Dissolved Organic Carbon after Tree Dieback in an Unmanaged European Mountain Forest
Original language description
Forest disturbances affect ecosystem biogeochemistry, water quality, and carbon cycling. We analyzed water chemistry before, during, and after a dieback event at a headwater catchment in the Bohemian Forest (central Europe) together with an un-impacted reference catchment, focusing on drivers and responses of dissolved organic carbon (DOC) leaching. We analyzed data regarding carbon input to the forest floor via litter and throughfall, changes in soil moisture and composition, streamwater chemistry, discharge, and temperature. We observed three key points. (i) In the first 3 years following dieback, DOC production from dead biomass led to increased concentrations in soil, but DOC leaching did not increase due to chemical suppression of its solubility by elevated concentrations of protons and polyvalent cations and elevated microbial demand for DOC associated with high ammonium (NH4+) concentrations. (ii) DOC leaching remained low during the next 2 years because its availability in soils declined, which also left more NH(4)(+)available for nitrifiers, increasing NO(3)(-)and proton production that further increased the chemical suppression of DOC mobility. (iii) After 5 years, DOC leaching started to increase as concentrations of NO3-, protons, and polyvalent cations started to decrease in soil water. Our data suggest that disturbance-induced changes in N cycling strongly influence DOC leaching via both chemical and biological mechanisms and that the magnitude of DOC leaching may vary over periods following disturbance. Our study adds insights as to why the impacts of forest disturbances are sometime observed at the local soil scale but not simultaneously on the larger catchment scale.
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
10503 - Water resources
Result continuities
Project
<a href="/en/project/GA17-15229S" target="_blank" >GA17-15229S: Phosphorus dynamics in unmanaged terrestrial ecosystems: Links with nitrogen and carbon cycling.</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Environmental Science & Technology
ISSN
0013-936X
e-ISSN
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Volume of the periodical
52
Issue of the periodical within the volume
11
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
6291-6299
UT code for WoS article
000434892900023
EID of the result in the Scopus database
2-s2.0-85047056048