A central European alluvial river under anthropogenic pressure: The Ohře River, Czechia
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F21%3A00540289" target="_blank" >RIV/61388980:_____/21:00540289 - isvavai.cz</a>
Alternative codes found
RIV/44555601:13520/21:43896239 RIV/61989592:15310/21:73610506
Result on the web
<a href="https://doi.org/10.1016/j.catena.2021.105218" target="_blank" >https://doi.org/10.1016/j.catena.2021.105218</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.catena.2021.105218" target="_blank" >10.1016/j.catena.2021.105218</a>
Alternative languages
Result language
angličtina
Original language name
A central European alluvial river under anthropogenic pressure: The Ohře River, Czechia
Original language description
Detailed geomorphic evaluation, drill coring, and analysis of floodplain sediments, along with geophysical imaging, were used to study the evolution of the youngest terraces and palaeo-meanders in the lower reach of the Ohře River. Floodplain sediment dating was performed by optically simulated luminescence and via the examination of sediment contamination from historical mining of metals in the river catchment. Two river segments were studied. In the upper segment, the Žatec area, the trunk channel persistently incised from the Early Holocene to ca. 2 ka, and in historical times the meandering channel changed to a low sinuous channel in a narrow channel belt. The terraces and palaeo-meanders in the Žatec area are younger than indicated in the geological maps, by one to two orders of magnitude. In the lower segment, the Písty area, 60 km downstream, approximately half of the sediments in the floodplain transect are the Early to Middle Holocene age and the other half are younger than approximately 1,000 years, in particular from the last five centuries. The deposits of the current channel belt in the Písty area are coarser (mostly sandy in the top metre) than in the rest of the floodplain (mostly silty in the top metre), indicating that the river must have undergone a substantial transformation in the last few centuries. We hypothesise that the trigger of this change was upstream channel straightening and lateral stabilisation, which reduced the amount of river-transported materials. Although the river catchment has been subjected to anthropogenic activity (including intense agriculture in the lower reaches), the river does not show enhanced aggradation.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10511 - Environmental sciences (social aspects to be 5.7)
Result continuities
Project
<a href="/en/project/GA15-00340S" target="_blank" >GA15-00340S: Anthropogenic Pollution and Fluvial Architecture: Two Phenomena and a Single Story</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Catena
ISSN
0341-8162
e-ISSN
1872-6887
Volume of the periodical
201
Issue of the periodical within the volume
JUN
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
18
Pages from-to
105218
UT code for WoS article
000631043700031
EID of the result in the Scopus database
2-s2.0-85100638731