Direct Effects of Air Pollution on Physiology of Forest Trees in the Western United States

Bytnerowicz, A. . Pacific Southwest Research Station

Direct Effects of Air Pollution on Physiology of Forest Trees in the Western United States

1993

Bytnerowicz, A. (USDA Forest Service, Riverside, CA (USA). Pacific Southwest Research Station)

Physiological processes of western trees are effected by ozone at concentration over 80 ppb, depending on the duration of the exposures and environmental conditions. At a single fascicle level short-term ozone exposures can cause reduction, no change or increase of stomatal conductance and net assimilation rate. Two seasons of exposures at twice level ozone concentrations caused a significant reduction of stomatal conductance and pigment concentrations in foliage.

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Mots clés AGROVOC

air pollution anabolism anabolisme anabolismo arbre forestier coniferales estados del oeste (eua) forest trees ozone ozono pigment pigmentos pigments western states (usa)

Informations bibliographiques

Publié dans

World Series (IUFRO)

Numéro 4 ISSN 1016-3263

Editeur

IUFRO

Pagination

132 p.

D'autres materias

Arboles forestales; Etats de l'ouest (eu); Coniferale; Pollution atmospherique; Polucion del aire

Langue

anglais

Note

Summary (En)

p. 38, 5 ref.

Type

Summary; Non-Conventional

Source

Long-term Implications of Climate Change and Air Pollution on Forest Ecosystems, Schlaepfer, R. (Swiss Federal Institute for Forest, Snow and Landscape, Birmensdorf (Switzerland)) (ed.).- Vienna (Austria): IUFRO, 1993.- ISBN 3 7040 1165 7

Sur AGRIS depuis: 1998-08-15

Format: AGRIS AP

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