How do long-term development and periodical changes of river–floodplain systems affect the fate of contaminants? Results from European rivers

Lair, Georg J.; Zehetner, Franz; Fiebig, Markus; Gerzabek, Martin H.; Gestel, Cornelis A.M. van; Hein, Thomas; Hohensinner, Severin; Hsu, P; Jones, Kevin C.; Jordán, Győző; Koelmans, Albert A.; Poot, A.; Slijkerman, D.M.E.; Totsche, Kai Uwe; Bondar‐Kunze, Elisabeth; Barth, Johannes A. C.

doi:10.1016/j.envpol.2009.06.004

Cited by 73 publications

(47 citation statements)

References 94 publications

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“…The main reasons for the increased biodiversity in floodplains are hydro-and morphodynamics, which result in a large number of (micro-) habitats (Schnitzler, 1994;Schneider-Binder, 2009) -thereby unfortunately promoting the spread of some unwanted neophytes, too (Schnitzler et al, 2007). However, although very important and valuable, floodplains have been widely destroyed (Glaeser and Volk, 2009;Lair et al, 2009). For instance, along the Danube, Europe's second largest river after the Volga, about 80% of the floodplains have been eliminated since the beginnings of intensified river regulation in the early 19th century, but especially since the 1960s (Schneider-Binder, 2008;Schneider et al, 2009).…”

Section: Introductionmentioning

confidence: 98%

“…Especially floodplains along rivers are recognized not only as flood retention areas, but also as natural clarification plants diminishing the nutrient load of the water (Haycock et al, 1993;Olde Venterink et al, 2003;Burt et al, 2008;Lair et al, 2009). In addition, floodplains are hot spots of biodiversity, even in relatively species-poor Central Europe (Naiman et al, 1993;Schnitzler, 1994); therefore they are particularly protected within the Natura 2000 Network of the European Union (Machar, 2008;Schneider-Binder, 2008;Schneider et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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On the beautiful diverse Danube? Danubian floodplain forest vegetation and flora under the influence of river eutrophication

Mölder

Schneider

2011

River Research & Apps

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The aim of this study was to investigate and compare the flora and vegetation of three well-preserved hardwood floodplain forest areas along the river Danube and to discuss whether possible differences between the floodplain forests can be linked to river eutrophication. Flora and vegetation data from three study areas located on the Upper, Middle and Lower Danube in Central and Eastern Europe were compared using univariate and multivariate statistical methods. Special attention was paid to floristic composition, plant functional types, and ecological indicator values. We found that the three studied hardwood floodplain forests appeared to be rather different regarding floristic composition and herb-layer vegetation. Despite the high beta diversity, the distribution of the plant functional types indicated generally equal habitat conditions, which were quite stable. The diversity of herb-layer vegetation decreased downstream, while the indicators of nutrient availability pointed to increasing nutrient supply. The factor light apparently played a minor role for herb-layer diversity. There is a remarkable congruence between the results of our floodplain vegetation analysis and the longitudinal river eutrophication patterns as described in the literature. We conclude that the nutrient input into Danubian hardwood floodplain forests increased downstream, resulting in higher nutrient availability for plants. This promoted especially the growth of tall and competitive forbs, which outcompeted other plant species. Even if the importance of the various eutrophication patterns is difficult to quantify, our study provides evidence that anthropogenic eutrophication has a distinct effect on the flora and vegetation of Danubian hardwood floodplain forests.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

On the beautiful diverse Danube? Danubian floodplain forest vegetation and flora under the influence of river eutrophication

Mölder

Schneider

2011

River Research & Apps

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“…Geographic coordinates are given in Figure 1. The area was chosen for our study due to its high protection status, a good base of geographic data, and previous research in the area [38][39][40]. Mean C org storage in the area was estimated at 359.1 Mg ha −1 by Cierjacks et al [41], and as 428.9 Mg ha −1 by Suchenwirth et al [35].…”

Section: Study Areamentioning

confidence: 99%

Large-Scale Mapping of Carbon Stocks in Riparian Forests with Self-Organizing Maps and the k-Nearest-Neighbor Algorithm

Suchenwirth

Stümer²,

Schmidt

et al. 2014

Forests

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Among the machine learning tools being used in recent years for environmental applications such as forestry, self-organizing maps (SOM) and the k-nearest neighbor (kNN) algorithm have been used successfully. We applied both methods for the mapping of organic carbon (C org ) in riparian forests due to their considerably high carbon storage capacity. Despite the importance of floodplains for carbon sequestration, a sufficient scientific foundation for creating large-scale maps showing the spatial C org distribution is still missing. We estimated organic carbon in a test site in the Danube Floodplain based on RapidEye remote sensing data and additional geodata. Accordingly, carbon distribution maps of vegetation, soil, and total C org stocks were derived. Results were compared and statistically evaluated with terrestrial survey data for outcomes with pure remote sensing data and for the combination with additional geodata using bias and the Root Mean Square Error (RMSE). Results show that SOM and kNN approaches enable us to reproduce spatial patterns of riparian forest C org stocks. While vegetation C org has very high RMSEs, outcomes for soil and total C org stocks are less biased with a lower RMSE, especially when remote sensing and additional geodata are conjointly applied. SOMs show similar percentages of RMSE to kNN estimations. OPEN ACCESSForests 2014, 5 1636

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“…The recent floodplain consists of up to 20 m gravel covered by fine sediments. The present main channel of the Danube River was created by a channelization between 1870 and 1875, and a flood-control dike was constructed between 1882 and 1905 (Lair et al, 2009c). The study area experiences a continental climate with hot summers and cold winters (Fig.…”

Section: Geological and Climatic Settingmentioning

confidence: 99%

“…Du Laing et al, 2009;Lair et al, 2009c). Besides anthropogenic pollutant sources (see for example Lair et al, 2009c), also geogenic sources may contribute to the contamination of river-floodplain systems. The most dramatic example of the latter is probably the arsenic calamity in parts of India and Bangladesh (e.g.…”

Section: Introductionmentioning

confidence: 99%

Rates of biogeochemical phosphorus and copper redistribution in young floodplain soils

et al. 2009

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Abstract. Nutrients and trace metals in river-floodplain systems may originate from anthropogenic activities and/or geogenic sources. Here, we analyze a soil chronosequence (2 to approximately 600 years) on a floodplain at the Danube River (Austria) to quantify the rates of P and Cu redistribution among biogeochemical pools during early soil formation under temperate continental climate. While bulk and clay mineralogy remained unchanged over the studied age gradient, we found considerable (mostly non-linear) redistribution of P and Cu among biogeochemical pools. The calcium-associated P and Cu fractions decreased rapidly during the initial decades of soil formation. The dissolution of calcium-associated P was mirrored by marked accumulation of organic P. Copper incorporated within resistant minerals showed a relative enrichment with soil age. The mean dissolution rates of calcium-associated (primary mineral) P decreased exponentially with increasing soil age from ∼1.6 g m −2 yr −1 over ∼15 years to ∼0.04 g m −2 yr −1 over ∼550 years, and were almost an order of magnitude higher than rates reported for tropical environments. Our study demonstrates that on riverine floodplains, rapid biogeochemical transformations can occur within the first centuries of soil formation under temperate climatic conditions.

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How do long-term development and periodical changes of river–floodplain systems affect the fate of contaminants? Results from European rivers

Cited by 73 publications

References 94 publications

On the beautiful diverse Danube? Danubian floodplain forest vegetation and flora under the influence of river eutrophication

On the beautiful diverse Danube? Danubian floodplain forest vegetation and flora under the influence of river eutrophication

Large-Scale Mapping of Carbon Stocks in Riparian Forests with Self-Organizing Maps and the k-Nearest-Neighbor Algorithm

Rates of biogeochemical phosphorus and copper redistribution in young floodplain soils

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