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Comparative effects of urea, ammonium, and nitrate on phytoplankton abundance, community composition, and toxicity in hypereutrophic freshwaters
Comparative effects of urea ammonium nitrate
2014/4/4
Dissolved nitrogen (N) as urea ([NH2
]2CO), nitrate (NO{
3
), and ammonium (NHz
4
) was added to naturally
phosphorus (P)-rich lake water (up to 175 mg P L21
) to test the hypotheses that pollu...
Critical loads for soils and freshwaters：a comparison methods at the Plynlimon catchments
Critical loads freshwaters Plynlimon catchments soils
2009/6/8
International agreements aimed at reducing sulphur deposition from the atmosphere are now focused on the "critical loads" concept. This provides a distributed link between sources and receptors of aci...
Critical loads of sulphur and nitrogen for freshwaters in Great Britain and assessment of deposition reduction requirements with the First-order Acidity Balance (FAB) model
critical loads acidification nitrate FAB model
2009/3/24
The critical loads approach is widely used within Europe to assess the impacts of acid deposition on terrestrial and freshwater ecosystems.
Land use influences on acidification and recovery of freshwaters in Galloway, south-west Scotland
acidification afforestation deposition
2009/3/24
The long term response of surface waters to changes in sulphur deposition and afforestation is investigated for three upland river systems in the Galloway region of south-west Scotland. From 1984-1999...
Are there signs of acidification reversal in freshwaters of the low mountain ranges in Germany?
freshwater acidification reversal
2009/3/24
The reversal of freshwater acidification in the low mountain ranges of Germany is of public, political and scientific concern, because these regions are near natural ecosystems and function as an impo...
The potential for phosphorus pollution remediation by calcite precipitation in UK freshwaters
calcite calcium carbonate
2009/3/23
This paper examines the potential for calcium carbonate to reduce phosphate pollution in freshwaters by co-precipitation, a process known as a "self cleansing mechanism". Calcium carbonate saturation ...
Predicting recovery of acidified freshwaters in Europe and Canada: an introduction
recovery acidification modelling policy
2009/3/12
The RECOVER: 2010 project was designed to assess the current and future anthropogenic pressures on sensitive European freshwater ecosystems.
The O and H stable isotope composition of freshwaters in the British Isles. 2. Surface waters and groundwater
Stable isotopes surfacewaters groundwater British Isles
2009/3/12
The utility of stable isotopes as tracers of the water molecule has a long pedigree. The study reported here is part of an attempt to establish a comprehensive isotopic "baseline" for the British Isle...
The O and H stable isotope composition of freshwaters in the British Isles. 1. Rainfall
stable isotopes rainfall British Isles
2009/3/12
An understanding of the hydrological cycle in stable isotopic terms requires the characterisation of rainfall.
Sustainability of UK forestry：contemporary issues for the protection of freshwaters, a conclusion
water quality forestry stream ecology acidification critical loads nutrients
2009/3/5
This paper closes the Special Issue of Hydrology and Earth System Sciences entitled "Sustainability of UK forestry: contemporary issues for the protection of freshwaters" by presenting conclusions fro...
Scale-dependent carbon : nitrogen : phosphorus seston stoichiometry in marine and freshwaters
Scale-dependent carbon nitrogen phosphorus seston stoichiometry fresh waters
2014/4/21
The classical Redfield ratio of carbon106: nitrogen16: phosphorus1is a cornerstone of biogeochemistry. With the use of.2,000 observations of the chemistry of particulate matter from small and large la...