An estimation of the atmospheric input of acidifying substances to a forest ecosystem


Acidifying substances are compounds capable of increasing the hydrogen ion activity in the ecosystem. They are deposited to vegetation and soil in different forms (gases, particles, rain) and the deposition mechanisms are extremely complex. However, to evaluate possible effects of the deposition of acidifying substances to an ecosystem, the quality and quantity of atmospheric input must be known, as well as the pathways by which the deposition takes place. This paper gives a brief description of the occurrence of acidifying substances in the atmosphere, the essential pathways, and the mechanisms for deposition of anthropogenic nitrogen and sulfur compounds. The paper also presents a rough estimate of the total input, i.e. a deposition budget, of these compounds to a coniferous forest ecosystem in southern Sweden

Medarbetare: Peringe Grennfelt

Nyckelord: atmospheric input, acidifying substances, forest ecosystem

Typ: Artikel

År: 1991

Rapportnummer: A383

Författare: Peringe Grennfelt, Curt Bengtson, Lena Skärby

Publicerad i: Conference: NATO institute on acid rain effects, Toronto, Canada, 22 May 1978