National LTER Network of Latvia :: River Salaca
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Research in Latvia
1982 – up to now.
Three river sites in the the North Vidzeme Biosphere Reserve: outflow of the river at Vecate (latitude 57° N 47.722, longitude 25° E 08.948), below town Mazsalaca (latitude 57° N 52.446, longitude 25° E 00.057) and 4 km above river inflow in the Gulf of Riga at Vecsalaca (latitude 57° N 45.119, longitude 24° E 24.406).
In the Salaca drainage basin natural territories are dominating: forests (56,17%), bogs (3,77%) and waterbodies (1,88%). Arable lands are 37,5%, and urban territories 1,88% from the drainage area.
Investigation of long-term ecological processes in river communities and ecosystems on the background of climate warming and changing riverine load.
Water chemistry (COD, BOD, nutrients, ionic composition), bacteriology (aerobic saprophytic and oligocarbophylic bacteria), phytoplankton and periphyton, macrophytes, benthic macroinvertebrates.
Methods: For water chemistry and biology „Standard Methods for the Examination of Water and Wastewater” (American Public Health Association/American Water Works Association/ Water Environment Federation, USA) were used. Indices of saprobity and biodiversity were calculated.
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