Isotopic response of run-off to forest disturbance in small mountain catchments

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F18%3A00496470" target="_blank" >RIV/60077344:_____/18:00496470 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1002/hyp.13280" target="_blank" >http://dx.doi.org/10.1002/hyp.13280</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/hyp.13280" target="_blank" >10.1002/hyp.13280</a>

Result language

angličtina

Original language name

Isotopic response of run-off to forest disturbance in small mountain catchments

Original language description

Stable water isotopes were applied to trace hydrological processes in an undisturbed (mature spruce forest) and a nearby disturbed (deforested from a bark beetle outbreak) lake catchments in the Czech Republic. Both catchments are situated above 1,000 m a.s.l. within the Sumava National Park and have similar environmental conditions. The isotopic compositions of precipitation, creeks, springs, and lakes were sampled at 3-week intervals over one hydrological year. Water inputs to catchments were derived from isotopically similar local precipitation, whereas run-off was found to have different isotopic signatures. Creeks in the undisturbed catchment had similar to 1 parts per thousand and similar to 7 parts per thousand higher delta O-18 and delta H-2 with similar to 2 parts per thousand lower d-excess than in the disturbed catchment. The d-excess in creeks of the undisturbed catchment was more pronounced, particularly during snowmelt, and highly heterogeneous as compared with the disturbed catchment. Creeks in the undisturbed catchment were mainly fed by precipitation during the warm period (May-October), whereas creeks in the disturbed catchment were mostly fed by precipitation during the cold period (November-April). Estimated mean transit times of creeks and springs were similar to 6 months, except for two creeks in the undisturbed catchment, which had residence times of similar to 1 year. Although evaporation and transpiration fluxes were apparently reduced in the disturbed catchment, transpiration ratios were similar for both catchments. The difference in isotope signatures between catchments was attributed to the altered role of the forest canopy in temporal water distribution, which produced changes in the water cycle, potentially influencing important biogeochemical processes.

Czech name

—

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

—

OECD FORD branch

10503 - Water resources

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

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

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

Name of the periodical

Hydrological Processes

ISSN

0885-6087

e-ISSN

—

Volume of the periodical

32

Issue of the periodical within the volume

24

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

3650-3661

UT code for WoS article

000449539600007

EID of the result in the Scopus database

2-s2.0-85053854105