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Using the River Habitat Survey method in forecasting effects of river restoration

100%
Kiraga M., Popek Z.
Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation
|
2014
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tom 46
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nr 2
Research presents usability of the River Habitat Survey (RHS) evaluation method in forecasting effects of the Zielawa River restoration, performed in selected section between 18 + 960 km and 19 + 460 km. The EU so-called Water Framework Directive signalizes necessity of achieving a good ecological status of European rivers in the immediate future. Accordingly, river restoration is the main tool for already technically regulated rivers’ quality upgrading. Present research contains a collation of four proposed restoration works variants and the ecological evaluation of chosen river reach before and after initiating restoration works in accordance to various variants, using the RHS method. The conclusion is fact, that in dependence of established variant it is possible to receive improvement of ecological class from present Class V to Class IV (variants 1 and 2) or Class III (variants 3 and 4).
2

Temporal land cover analysis for net ecosystem improvement

75%
Ke Y., Coleman A. M., Diefenderfer H. L.
International Journal of Ecohydrology and Hydrobiology
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2013
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tom 13
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nr 1
3

A protection strategy for the floodplains of the River Yzer (Flanders, Belgium)

51%
de Rycke A., Devos K., Samain B., Sas M., Decleer K.
Journal of Water and Land Development
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2004
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nr 08
4

Adapting floodplain connectivity conditions - a prerequisite for sustaining aquatic macrophyte diversity in the UNESCO Biosphere Reserve Lobau (Austria)

51%
Barta V., Schmidt-Mumm U., Janauer G. A.
International Journal of Ecohydrology and Hydrobiology
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2009
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tom 09
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nr 1
The UNESCO Biosphere Reserve Lobau (Austria), established in 1977 within the city limits of Vienna, is part of the Danube National Park and one of the ecologically richest parts of the Danube River Corridor. Hardly noticed by diverging stakeholder interests the smaller aquatic habitats in the floodplain area are acutely threatened by wetland ageing and terrestrialisation processes. In 2007 an aquatic plant survey was carried out in the water bodies of the active floodplain on the left bank of the Danube main river channel as well as in the semi-separated water bodies of the Lobau. Results clearly show the impact of through-flow on aquatic plant species composition and abundance, as these metrics are significantly higher in the semiseparated location. Suitable water regime for all sensitive aquatic plants is an essential prerequisite for sustaining aquatic macrophyte diversity in the Lobau Biosphere Reserve, and could provide an ecohydrological basis for rehabilitation activities in other regulated river floodplains located in cultivated landscapes.
5

Riparian ecotone as a key factor for stream restoration

51%
Zalewski M., Bis B., Frankiewicz P., Lapinska M., Puchalski W.
International Journal of Ecohydrology and Hydrobiology
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2001
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tom 01
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nr 1-2
The effect of riparian ecotone functional complexity and stream hydraulics on an upland river ecosystem has been analysed. The amount of nutrients retained by the bottom sediment was lowest on a sandy substrate and highest in wetland bays. A stream bed covered by Berula erecta had about three times higher nutrient retentive capacity than did a sandy substrate. The trophic potential of CPOM, measured as total protein, was significantly correlated with the amount of deposited CPOM and depended on stream order. Macroinvertebrate biomass was highest at an intermediate riparian ecotone complexity with an adequate supply of organic matter and incident light. Fish biomass followed the same trend, being lowest in heavily shaded areas and in open channels without riparian vegetation, but highest in ecotones of intermediate complexity. These results indicate that the riparian ecotone structure and the heterogeneity of the stream channel may regulate biodiversity, productivity and nutrient retention in the fluvial corridor.
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