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  • Aquatic ecosystem ; Biogeochemical cycle ; Biogeochemistry ; Biogeography ; Carbon cycle ; Chemical erosion ; Diatom ; Ecosystem ; Lacustrine sediment ; Quaternary ; Silica ; Weathering
  • This paper reviews the biological role of Si in higher plants, the impact of vegetation on rates of chemical weathering, the fluxes of Si through catchment ecosystems, lakes and rivers, and the potential contribution of new geochemical and isotopic
  • tracers to Si biogeochemistry. Multiproxy investigations of lake sediments will provide novel insights into past variations in Si biocycling from terrestrial to aquatic on 10-10 000 000 year time-scales.
  • 2008
  • Aquatic ecosystem ; Auckland ; Environmental degradation ; Habitat ; Impact ; New Zealand ; North Island ; Sediment transport ; Stream ; Urban environment ; Urbanization ; Watershed
  • homogenous structure and flow, decreasing quality of habitat for biota. In this more urbanized area, with more stormwater drains, riparian vegetation is limited and of poor to moderate quality.
  • 2008
  • Aménagement hydraulique ; Autriche ; Cours d'eau ; Danube ; Ecosystème ; Impact ; Modèle numérique de terrain ; Plaine d'inondation ; Siècle 19 ; Siècle 20 ; Végétation ripicole
  • Austria ; Danube ; Digital elevation model ; Ecosystem ; Floodplain ; Hydraulic works ; Impact ; Nineteenth Century ; Riparian vegetation ; Stream ; Twentieth Century
  • 2008
  • [b1] Inst. of Hydrobiology and Aquatic Ecosystem Management. Univ. of Natural Resources and Applied Life Sciences, Vienne, Autriche
  • Aquatic ecosystem ; England ; Geochemistry ; Lead ; Model ; Pollution ; Soil ; United Kingdom ; Watershed
  • . Future change in climate or deposition chemistry could transform catchment soils into a significant source of Pb to the aquatic environment and water supply.
  • 2008
  • [b1] Centre for Aquatic and Terrestrial Ecology, Geography Dept., Queen Mary Univ., London, Royaume-Uni
  • Aquatic ecosystem ; Asian part of Russia ; Biogeochemistry ; Diatom ; Holocene ; Lacustrine sediment ; Lake ; Lateglacial ; Natural environment ; Palaeogeography ; Pollen analysis ; Sakha
  • 2008
  • Aquatic ecosystem ; Biogeochemistry ; Dammed lake ; Degradation ; Ecosystem ; Energy ; Lacustrine sediment ; Lake ; Organic materials ; Production
  • 2008
  • fragmentation can degrade stream habitats and pose barriers to the migration of aquatic species and transport of sediment. Because small and medium dams are largely built for fire protection and stock ponds, mitigating the impacts associated with these dams
  • 2008
  • Algae ; Aquatic ecosystem ; Biological indicator ; Diatom ; European part of Russia ; Kostroma ; Lacustrine sediment ; Lake ; Palaeo-ecology ; Thermal regime
  • 2008
  • understanding of the processes of sediment exchange is essential to improve predictions of the impacts of climate change and the subsequent effects on aquatic ecology.
  • 2008