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Mobility and Methylation of Mercury in Forest Soils Development of an In-Situ Stable Isotope Tracer Technique and Initial Results 总被引:2,自引:0,他引:2
Munthe John Lyvén Benny Parkman Helena Lee Ying-Hua Iverfeldt Åke Haraldsson Conny Verta Matti Porvari Petri 《Water, Air, & Soil Pollution: Focus》2001,1(3-4):385-393
A method for investigating in-situmethylation and mobility of mercury has beendeveloped and applied to forest soil. The methodis based on additions of stable 199Hgisotopes to forest soil plots followed bysampling and analysis of isotope ratios of totalmercury and MeHg using ICP-MS. Initial resultsindicate that a fraction (30%) of the mercuryadded to the forest soils is immobilised over atime scale of 16 months. A small but significantfraction of the mercury is methylated during thesame time scale. Higher methylation rates werefound in wetland soil than in dry forest podzolsoil. 相似文献
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Nathalie Hilmi Denis Allemand Sam Dupont Alain Safa Gunnar Haraldsson Paulo A. L. D. Nunes Chris Moore Caroline Hattam Stéphanie Reynaud Jason M. Hall-Spencer Maoz Fine Carol Turley Ross Jeffree James Orr Philip L. Munday Sarah R. Cooley 《Marine Biology》2013,160(8):1773-1787
Ocean acidification is increasingly recognized as a component of global change that could have a wide range of impacts on marine organisms, the ecosystems they live in, and the goods and services they provide humankind. Assessment of these potential socio-economic impacts requires integrated efforts between biologists, chemists, oceanographers, economists and social scientists. But because ocean acidification is a new research area, significant knowledge gaps are preventing economists from estimating its welfare impacts. For instance, economic data on the impact of ocean acidification on significant markets such as fisheries, aquaculture and tourism are very limited (if not non-existent), and non-market valuation studies on this topic are not yet available. Our paper summarizes the current understanding of future OA impacts and sets out what further information is required for economists to assess socio-economic impacts of ocean acidification. Our aim is to provide clear directions for multidisciplinary collaborative research. 相似文献
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