J 2023

Living woody vegetation as a storage element for large wood in the channel

GALIA, Tomáš and Zdeněk MÁČKA

Basic information

Original name

Living woody vegetation as a storage element for large wood in the channel

Authors

GALIA, Tomáš (203 Czech Republic, guarantor) and Zdeněk MÁČKA (203 Czech Republic, belonging to the institution)

Edition

Science of the Total Environment, Amsterdam, Elsevier, 2023, 0048-9697

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10508 Physical geography

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 9.800 in 2022

RIV identification code

RIV/00216224:14310/23:00131461

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1016/j.scitotenv.2023.164717

UT WoS

001026143000001

Keywords in English

Large wood; Riparian vegetation; Wood trapping; Wood fluxes

Tags

rivok

Tags

International impact, Reviewed
Změněno: 21/8/2023 13:42, Mgr. Marie Šípková, DiS.

Abstract

V originále

The stability of large wood (LW) in the channels is a prerequisite for its persisting geomorphic and ecological effects. This study analysed the factors influencing the storage of LW by living woody vegetation while still interacting with the active channel (and consequently, having potential geomorphic and ecological impact in the channel). It was conducted through field inventory of sixteen European channel reaches across various environmental settings. On the reach scale, the volumes of LW pinned by woody vegetation per channel area (0.1-18.2 m3/ha) followed global trends for total LW volumes., As the catchment area and channel width increased, and bed slope decreased, LW volumes pinned by vegetation decreased. However, the volumetric proportion of LW pinned by vegetation (1.5-30.3 %) did not increase solely as a simple function of the increasing LW mobilisation rate (represented by the increasing catchment area and channel width) or the increasing density of woody vegetation in the fluvial corridor. Instead, the specifics of the disturbance regime had an additional impact on the distribution of LW and its potential pinning on living vegetation in fluvial corridors. Moreover, stable vegetated patches in the channel were detected as significant features responsible for the pinning of LW. Only two tested reaches indicated significantly smaller dimensions of LW pinned by vegetation compared to unattached LW. This implied a possible equimobility mode of LW transport based on their sizes during flood pulses, suggesting somewhat 'random' dimensions of LW trapped by woody vegetation. This study demonstrated that woody vegetation occupying fluvial corridors cannot be solely regarded as sources of LW recruitment, but these trees and shrubs also play a crucial role as retention elements for mobilised wood during floods or other hydrogeomorphic events.

Links

MUNI/A/1323/2022, interní kód MU
Name: Environmentální a socioekonomické změny v geografickém výzkumu
Investor: Masaryk University, Environmental and socio-economic change in geographical research
Displayed: 6/11/2024 20:50