Lichen biomonitoring of ammonia emission and nitrogen deposition around a pig stockfarm.
Environ Pollut
; 146(2): 311-6, 2007 Mar.
Article
em En
| MEDLINE
| ID: mdl-16777293
ABSTRACT
Effects of high ammonia emissions and nitrogen deposition were investigated on lichens around a pig stockfarm (ca. 7,000 animals) in central Italy. Four sites were selected along a transect at 200, 400, 1000 and 2500 m from the stockfarm, the diversity of epiphytic lichens was measured and transplanted thalli of Xanthoria parietina and Flavoparmelia caperata exposed, together with passive NH3 (diffusion tubes) samplers. Ammonia dramatically decreased from the centre of the stockfarm to the sampled sites, where it was correlated with bark pH. Total lichen diversity was not associated with either NH3 concentrations or bark pH, but the diversity of strictly nitrophytic species was highly correlated with both parameters. Physconia grisea was the best indicator species for NH3 pollution. Total N accumulated in X. parietina and F. caperata was correlated with NH3 concentrations.
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Base de dados:
MEDLINE
Assunto principal:
Monitoramento Ambiental
/
Casca de Planta
/
Agricultura
/
Poluentes Atmosféricos
/
Amônia
/
Líquens
/
Nitrogênio
Limite:
Animals
País/Região como assunto:
Europa
Idioma:
En
Revista:
Environ Pollut
Assunto da revista:
SAUDE AMBIENTAL
Ano de publicação:
2007
Tipo de documento:
Article
País de afiliação:
Itália