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Experimental Reversal of Acid Rain Effects – The Gardsjon Roof Project

Autor H Hultberg
en Limba Engleză Hardback – 28 dec 1997
Acid deposition is considered to be one of the greatest threats to the environment in industrialised countries. Recognising this, governments have instituted programmes to reduce emissions of SO2, and NOx, the major sources of acid rain. But is this enough? Will ecosystems damaged by acid rain recover? And if they do, how quickly? What ecosystem processes determine the rate of recovery? Do acidification models give accurate predictions? Are any other actions necessary to promote recovery? To answer such questions without waiting for the results of current policies, scientists in Sweden and the UK decided to eliminate acid deposition on an acidified ecosystem altogether, and monitor the effects. They did this by constructing a huge roof over an acidified catchment near Lake Gårdsjön in Southwest Sweden. Acid rain falling on the roof is diverted away, and replaced with clean rain. The detailed responses of the ecosystem are measured. This book records the results from the first five years of the Project, and considers the implications for emission control. The book describes the effect of eliminating acid deposition (and some other pollutants) on vital ecosystem processes ? both chemical and biological ? and how the predictions of acidification and hydrological models compared with experimental results. It describes the covered catchment, how the roof was constructed and the problems associated with such large experiments. The implications for pollution control policies, and what still needs to be discovered, are emphasised. The book should be of interest to a wide variety of environmental scientists, especially those interested in pollution effects, forestry, freshwater fisheries, and ecosystem function, and to environmental managers and policymakers.
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Specificații

ISBN-13: 9780471961512
ISBN-10: 0471961515
Pagini: 484
Dimensiuni: 181 x 254 x 33 mm
Greutate: 1.03 kg
Ediția:New.
Editura: Wiley
Locul publicării:Chichester, United Kingdom

Notă biografică


Descriere

This volume describes the results of the Covered Catchment Project at Gardsjon in Sweden. This is a major project in which a large (800m2) roof has been erected under a forest canopy to shelter the soil from the acid rain that falls in that area.