Trees and Shrubs for Noise Abatement
The potential value of trees and shrubs, as determined from a study of a variety of shelterbelts and urban screen plantings in southeastern Nebraska, appears to be very good. Reductions of sound levels (attenuations) in the order of 5 to 8 decibels are common, and attenuations of 10 decibels (approximately half as loud) are not unusual for wide belts of tall, dense trees. When the difference in level is based on a comparison of tree-shrub-grass combinations with hard surfaces, the worth of trees and shrubs is even more evident and attenuations of 8 to 12 decibels are common. Occasional reductions of 15 decibels or greater (1/3 as loud) have b…
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Produktdetails
Weitere Autoren: Cook, David I. / Haverbeke, David F. van
- ISBN: 978-1-4102-1820-9
- EAN: 9781410218209
- Produktnummer: 38234678
- Verlag: University Press Of The Pacific
- Sprache: Englisch
- Erscheinungsjahr: 2004
- Seitenangabe: 84 S.
- Masse: H21.6 cm x B14.0 cm x D0.4 cm 119 g
- Abbildungen: Paperback
- Gewicht: 119
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