Long-term deposition of fine sediments in Vienna's Danube floodplain before and after channelization

Hohensinner, Severin; Grupe, Sabine; Klasz, Gerhard; Payer, Thomas

doi:10.1016/j.geomorph.2021.108038

Cited by 7 publications

(5 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The floodplain ecosystems are very dynamic, since they are affected by floods (Talbot et al, 2018). These systems function under conditions of varying water (Bouska et al, 2020;Doering et al, 2021), salt (Didukh et al, 2015;Dubyna et al, 2020) and air regimes (Kolesnikova et al, 2016) and the impact of erosion processes of varying intensity (Arnaud-Fassetta et al, 2009;Hohensinner et al, 2022). The specificity of the species composition of plant communities in floodplain forests can be maintained only with regular flooding (Glaeser and Wulf, 2009).…”

Section: Introductionmentioning

confidence: 99%

The role of soil and plant cover as drivers of soil macrofauna of the Dnipro River floodplain ecosystems

et al. 2023

View full text Add to dashboard Cite

Floodplain ecosystems are hotspots of biological diversity and perform important ecosystem functions in the landscape. The key to understanding the sustainability of ecosystem function is knowledge of the relationships between ecosystem components. The article reveals the role of morphological and physical properties of soil, as well as phytoindication of environmental factors as drivers of biological diversity of soil macrofauna of protected ecosystems of the Dnipro River floodplain. The studies were conducted in the forest floodplain ecosystems of the “Dnipro-Orilskiy” Nature Reserve. The studies of morphological properties of soils allowed us to identify the representatives of two reference groups: Fluvisol and Gleysol. The soil physical property data were subjected to principal component analysis, which extracted four principal components whose eigenvalues exceeded unity and described 79.9% of the variation in traits. The principal components of variation in soil physical properties and phytoindication assessments of environmental factors were used as predictors of the community structure of soil macrofauna. These predictors were able to explain 29.6% of the community variation. Physical soil properties are most important as a driver of soil macrofauna. The morphological properties of the soil and phytoindicator assessments are able to explain a much smaller part of the community variation. The pure influence of the predictors is small, indicating that they interact significantly in influencing soil animals. The results obtained have implications for the development of optimal strategies for floodplain ecosystem management and biodiversity conservation.

show abstract

Section: Introductionmentioning

confidence: 99%

The role of soil and plant cover as drivers of soil macrofauna of the Dnipro River floodplain ecosystems

et al. 2023

View full text Add to dashboard Cite

show abstract

“…They are degraded due to violations of land-use regulations and changes in the characteristics of natural flood events that ensure the existence of such unique areas [1][2][3][4][5]. The state of river floodplains depends mainly on the nature of their flooding, whose hydrological regime is determined by the spring flood volume, a channel structure and a relief of the territory [1,[6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…The ability to regulate the natural hydrological regime has always been the main factor for the creation of socio-economic systems in river valleys and, in particular, in floodplain areas [3,12,13]. Increased deviation of hydrological characteristics from the natural regime leads to large losses in ecosystems.…”

Section: Introductionmentioning

confidence: 99%

“…Each specific floodplain area requires an individual approach to modeling the hydrological regime and analyzing hydrological processes that determine the ecological state and economic significance of lands [2,3,9,12,17]. To measure this value, the concept of "ecosystem services" is used, which are characterized by useful functions of a given territory [22].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Modeling the Territorial Structure Dynamics of the Northern Part of the Volga-Akhtuba Floodplain

et al. 2022

View full text Add to dashboard Cite

The subject of our study is the tendency to reduce the floodplain area of regulated rivers and its impact on the degradation of the socio-environmental systems in the floodplain. The aim of the work is to create a new approach to the analysis and forecasting of the multidimensional degradation processes of floodplain territories under the influence of natural and technogenic factors. This approach uses methods of hydrodynamic and geoinformation modeling, statistical analysis of observational data and results of high-performance computational experiments. The basis of our approach is the dynamics model of the complex structure of the floodplain. This structure combines the characteristics of the frequency ranges of flooding and the socio-environmental features of various sites (cadastral data of land use). Modeling of the hydrological regime is based on numerical shallow water models. The regression model of the technogenic dynamics of the riverbed allowed us to calculate corrections to the parameters of real floods that imitate the effect of this factor. This made it possible to use digital maps of the modern topography for hydrodynamic modeling and the construction of floods maps for past and future decades. The technological basis of our study is a set of algorithms and software, consisting of three modules. The data module includes, first of all, the cadastres of the territory of the Volga-Akhtuba floodplain (VAF, this floodplain is the interfluve of the Volga and Akhtuba rivers for the last 400 km before flowing into the Caspian Sea), satellite and natural observation data, spatial distributions of parameters of geoinformation and hydrodynamic models. The second module provides the construction of a multilayer digital model of the floodplain area, digital maps of floods and their aggregated characteristics. The third module calculates a complex territorial structure, criteria for the state of the environmental and socio-economic system (ESES) and a forecast of its changes. We have shown that the degradation of the ESES of the northern part of the VAF is caused by the negative dynamics of the hydrological structure of its territory, due to the technogenic influence the hydroelectric power station on the Volga riverbed. This dynamic manifests itself in a decrease in the stable flooded area and an increase in the unflooded and unstable flooded areas. An important result is the forecast of the complex territorial structure and criteria for the state of the interfluve until 2050.

show abstract

“…Regulierte Flusslandschaften werden dominiert von "überalterten" Habitaten, geprägt von Ver-bzw. Auflandung, Kolmation des hyporheischen Interstitials in Gewässersohlen und veränderten Stoffkreisläufen (Hein et al 2004;Sieczko et al 2016;Hohensinner et al 2022).…”

Section: Introductionunclassified

Habitatrestauration mit Ablaufdatum? Integration dynamischer Prozesse in der Sanierung von Fließgewässern

Hohensinner

Schachner

Schmutz

2022

Österr Wasser- und Abfallw

Self Cite

View full text Add to dashboard Cite

ZusammenfassungAktuelle Konzepte für gewässerökologisch-hydromorphologische Sanierungen von Fließgewässern sehen meist eine (teilweise) Wiederherstellung der Gewässerdynamik vor. Folglich werden heute vermehrt Uferschutzbauten entfernt, Gerinneaufweitungen vorgenommen und verlandete Altarme wieder reaktiviert. Doch viele der daraus entstandenen neuen Gewässer(strukturen) erweisen sich mittel- bis langfristig nicht als selbsterhaltend. So neigen neu entstandene Nebenarme oft zur Verlandung und weitere Erhaltungsmaßnahmen sind erforderlich – selbst wenn bei der Planung auf historische Referenzen Bezug genommen wurde. Am Beispiel der Oberen Mur zwischen Fisching/Zeltweg und Leoben wird aufgezeigt, dass viele dieser zweifelsfrei ökologisch wertvollen Renaturierungsmaßnahmen keiner echten prozessorientierten „Fließgewässer-Redynamisierung“, sondern eher ökologisch motivierten Restrukturierungen mit Ablaufdatum entsprechen. Für eine langfristig erfolgreiche Sanierung würden die meisten Fließgewässer wesentlich mehr Raum und eine Integration morphodynamischer Prozesse benötigen, damit autochthone flussmorphologische und gewässerökologische Entwicklungszyklen möglich sind, die ein Mosaik an Habitaten unterschiedlicher Sukzessionsstadien hervorbringen.

show abstract

Long-term deposition of fine sediments in Vienna's Danube floodplain before and after channelization

Cited by 7 publications

References 57 publications

The role of soil and plant cover as drivers of soil macrofauna of the Dnipro River floodplain ecosystems

The role of soil and plant cover as drivers of soil macrofauna of the Dnipro River floodplain ecosystems

Modeling the Territorial Structure Dynamics of the Northern Part of the Volga-Akhtuba Floodplain

Habitatrestauration mit Ablaufdatum? Integration dynamischer Prozesse in der Sanierung von Fließgewässern

Contact Info

Product

Resources

About