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Norwegian lakes show widespread recovery from acidification：results from national surveys of lakewater chemistry 1986-1997
Acid Neutralising Capacity Sulphate concentrations lakes
2009/6/5
Surveys of 485 lakes in Norway conducted in 1986 and again in 1995 reveal widespread chemical recovery from acidification. Sulphate concentrations in lakes have decreased by 40% in acidified areas in ...
Spatial variability of nitrate concentration in lakes in Snowdonia, North Wales, UK
Spatial variability North Wales nitrate concentration
2009/5/26
At a regional scale, high nitrate (NO3‾) concentrations in upland surface waters generally occur in tandem with high nitrogen (N) deposition levels. However, significant differences in the patte...
Increasing silicon concentrations in Bohemian Forest lakes
silicon concentrations Bohemian Forest lakes
2009/5/18
Long-term trends of dissolved silicon (Si) concentrations in five glacial lakes in the Bohemian Forest, Czech Republic, recovering from acidification show higher mobility of Si from the soil to surfa...
Effect of Saharan dust inputs on bacterial activity and community composition in Mediterranean lakes and reservoirs
Effect of Saharan dust inputs bacterial activity community composition Mediterranean lakes and reservoirs
2014/4/18
We assessed the effects of Saharan dust inputs of particulate matter (PM), total phosphorus (TP), total nitrogen, and water soluble organic carbon (WSOC) on bacterial abundance (BA) in two alpine lake...
Determination of the historical variation of the trophic state in lakes using sediment stratigraphies
trophic state lakes using sediment
2009/5/13
Biogenic silica (BSi) and phosphorous (P) accumulation were investigated in sediment cores from Karlskärsviken, a bay of Lake Mälaren. The aim was to make use of BSi and P relations in sedim...
Tracing and quantifying groundwater inflow into lakes using a simple method for radon-222 analysis
groundwater radon-222 analysis
2009/5/13
Due to its high activities in groundwater, the radionuclide 222Rn is a sensitive natural tracer to detect and quantify groundwater inflow into lakes, provided the comparatively low activities in the l...
Development of the MESH modelling system for hydrological ensemble forecasting of the Laurentian Great Lakes at the regional scale
Community Hydrologic Prediction System Hydrologic Ensemble Prediction Experiment North American Ensemble Forecasting System
2009/5/8
Environment Canada has been developing a community environmental modelling system (Modélisation Environmentale Communautaire – MEC), which is designed to facilitate coupling between models focusing o...
What affects the nitrogen retention in Tatra Mountains lakes' catchments in Poland?
nitrogen retention Tatra Mountains lakes' catchments
2009/4/29
The study of acidification and recovery of two lakes situated in the Polish Tatra Mountains, exposed to similar deposition of acidic substances but differing in altitude, catchment morphology, hydrol...
Assessment of impact of climate change on water resources：a long term analysis of the Great Lakes of North America
Global Circulation Models the Great Lakes climate change
2009/4/28
In the threshold of the appearance of global warming from theory to reality, extensive research has focused on predicting the impact of potential climate change on water resources using results from G...
Intermittent oxygen flux from the interior into the bottom boundary of lakes as observed by eddy correlation
Intermittent oxygen flux observed
2014/4/21
Turbulent oxygen transport from the overlying stratified water column into the bottom boundary layer (BBL)
on the slope of a medium-sized lake was investigated using the eddy correlation (EC) techniq...
Optical closure in lakes with contrasting extremes of reflectance
Optical closure contrasting extremes
2014/4/21
We measured inherent and apparent optical properties and computed ‘optical closure’ in four lakes on the South
Island of New Zealand, ranging very widely in reflectance. Optical properties were measu...
Aging of allochthonous organic carbon regulates bacterial production in unproductive boreal lakes
allochthonous organic carbo production in unproductive
2014/4/18
We calculated average aquatic dissolved organic carbon (DOC) age (the time span from soil discharge to
observation) in water from the inlets and outlets of two unproductive Swedish lakes at different...
Bacterial diversity and morphology in deep ultraoligotrophic Andean lakes: Role of UVR on vertical distribution
Bacterial diversity morphology
2014/4/18
We investigated the community composition and the relative size–shape distribution of bacterial assemblages
in deep transparent lakes, where bacteria may be affected by harmful ultraviolet radiation ...
Microbially induced flocculation of allochthonous dissolved organic carbon in lakes
Microbially induced allochthonous dissolved organic carbon
2014/4/17
The flocculation of allochthonous dissolved organic carbon (DOC) in lakes was investigated in a series of
laboratory experiments. Flocculation was enhanced by increased temperatures, and addition of ...
Zinc isotope composition of settling particles as a proxy for biogeochemical processes in lakes: Insights from the eutrophic Lake Greifen, Switzerland
Zinc isotope composition a proxy for biogeochemical processes
2014/4/17
The isotope composition of zinc (Zn) was determined in settling particles collected monthly over a year in the
hypolimnion of the eutrophic Lake Greifen (Switzerland) in order to explore the potentia...