Characteristics and abundance of large and small instream wood in a Carpathian mixed-forest headwater basin

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F18%3AA1901VJ3" target="_blank" >RIV/61988987:17310/18:A1901VJ3 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.foreco.2018.05.031" target="_blank" >http://dx.doi.org/10.1016/j.foreco.2018.05.031</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.foreco.2018.05.031" target="_blank" >10.1016/j.foreco.2018.05.031</a>

Result language

angličtina

Original language name

Characteristics and abundance of large and small instream wood in a Carpathian mixed-forest headwater basin

Original language description

The effect of instream wood on stream hydraulics and geomorphic processes depends on wood and channel dimensions. We investigated abundance and characteristics (i.e., wood orientation, proportion of spanned channel width, stability and decay classes) of large wood (LW; defined here as having a length >= 1 m and a diameter >= 0.1 m) and small wood (SW; including two categories with length a 0.5 m and diameter >= 0.1 m or length >= 1 m and diameter >= 0.05 m) in three steep, confined headwater channels of medium-high mountain ranges of the Western Carpathians (Central Europe). Results show that SW is more frequent than LW, however, active-channel LW load varied between 26 and 305 m(3).ha(-1), whereas SW showed much lower active-channel load (8-16 m(3).ha(-1)). Differences between LW and SW active-channel volumes were considerably smaller in streams under dominant deciduous canopy. In these streams, morphological steps - created exclusively by SW - were more frequent than LW steps. This higher frequency of SW in streams surrounded by a deciduous tree canopy can be explained by the continuous supply of branches rather than entire dead trees. On the other hand, the volume and frequency of LW was related to the proportion of conifers in the valley corridor. We observe very high active-channel load in two channel reaches for which values exceeded most of those observed in similarly small streams across the globe. We also observe an unusually large proportion of instream wood (both LW and SW) oriented parallel to the flow direction, which might suggest a higher mobility of bed material in the flyschdominated headwater channels of our study site.

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

—

OECD FORD branch

10619 - Biodiversity conservation

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

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

Name of the periodical

FOREST ECOL MANAG

ISSN

0378-1127

e-ISSN

1872-7042

Volume of the periodical

424

Issue of the periodical within the volume

Září

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

15

Pages from-to

468-482

UT code for WoS article

000437967900044

EID of the result in the Scopus database

2-s2.0-85047094027