Download e-book for kindle: Acidification Research in The Netherlands: Final Report of by G. J. Heij, T. Schneider

By G. J. Heij, T. Schneider

ISBN-10: 008087505X

ISBN-13: 9780080875057

ISBN-10: 0444888314

ISBN-13: 9780444888310

This publication includes the implications and conclusions of intensive learn at the factors and results of acidification of forests/forest soils and heathland within the Netherlands. In 1985 the Dutch precedence Programme on Acidification was once begun so one can supply a extra concrete shape to the expanding curiosity of policy-makers within the results of pollution on ecosystems specifically. within the final 3 years, the learn has excited by acquiring a extra actual estimate of the emission of ammonia at the deposition of SOx, NOy and NHx, and likewise on quantifying results on wooded area and heathland ecosystems. This quantification of results integrated experimental paintings version analyses, and derivation of serious lots and degrees for woodland and heathland ecosystems. additionally, state of affairs analyses have been made with the Dutch Acidification structures version (DAS) to be able to overview the effectiveness of coverage measures. The study itself, which shaped the root for this ebook, has been defined within the reviews on person tasks. A precis of the clinical effects and conclusions is given in thematic experiences (added as annex).

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Extra info for Acidification Research in The Netherlands: Final Report of the Dutch Priority Programme on Acidification

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1): - 38 - housing and stor w emissions, referring to the NH3 emissions during the period that the animals are in the stables, for example for cattle in winter and for pigs and chickens throughout the year; emission due to the spreading of manure, on pastures or arable land; gnissions from mazing, refemng to the emissions from cattle during the pasture perid. The emissions of NH3 from livestock manure depend on several factors, including fodder composition, nitrogen and water content of the manure, meteorology, soil conditions, pH, etc.

Ammonia emissions Because of the environmental problems caused by the present agricultural practice in the Netherlands research on control measures has increased considerably. The Research Programme on Animal Manure and Ammonia deals with this research. Within the second phase Priority Programme on Acidification only a limited amount of money has been allocated to research on emissions from manured grasslands and arable land. Different techniques for the spreading of manure have been investigated.

The comparison with the measurements from the experiments clearly demonstrate that the uncertainty in the calculated emission factors is very large. Furthermore, the number of categories for which factors are measured is limited. In general, the emission of N H 3 depends on several factors such as temperature, atmospheric turbulence, ambient N H 3 concentration, nitrogen and water content of the manure, humidity, soil pH, land type and manure composition. Large errors may be introduced when the complex emission process is described by a limited set of emission factors, assumed to be valid for the whole of the country on an annual basis.

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Acidification Research in The Netherlands: Final Report of the Dutch Priority Programme on Acidification by G. J. Heij, T. Schneider

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