Caracterització química de la precipitació al Montseny: relació entre meteorologia i transport.

Avila A, Alarcón M (2002) Caracterització química de la precipitació al Montseny: relació entre meteorologia i transport. Tethys, revista de meteorologia (http:/tethys.acamet.org/cat.htm).

Aula d'Ecologia. Cicle de conferències 2001.

Avila A, Terradas J (eds) (2002) Aula d'Ecologia. Cicle de conferències 2001. Servei de Publicacions, Universitat Autònoma de Barcelona, Bellaterra, 78 pp.

Dry deposition to the forest canopy and surrogate surfaces in two Mediterranean holm oak forests in Montseny (NE Spain).

Rodrigo A, Avila A (2002) Dry deposition to the forest canopy and surrogate surfaces in two Mediterranean holm oak forests in Montseny (NE Spain). Water, Air and Soil Pollution 136:269-288.

Nitrogen circulation in a Mediterranean holm oak forest, La Castanya, Montseny, northeastern Spain.

Avila A, Rodrigo A, Rodà F (2002) Nitrogen circulation in a Mediterranean holm oak forest, La Castanya, Montseny, northeastern Spain. Hydrology and Earth System Sciences 6:551-557.

Assessing decadal changes in rainwater alkalinity at a rural Mediterranean site in the Montseny Mountains (NE Spain).

Avila A, Rodà F (2002) Assessing decadal changes in rainwater alkalinity at a rural Mediterranean site in the Montseny Mountains (NE Spain). Atmospheric Environment 36:2881-2890.

Nitrogen deposition in Mediterranean forests

Rodà F., Avila A., Rodrigo A. (2002) Nitrogen deposition in Mediterranean forests. Environmental Pollution. 118: 205-213.
Enllaç
Doi: 10.1016/S0269-7491(01)00313-X

Resum:

Atmospheric deposition of inorganic nitrogen was studied at two forested sites in the Montseny mountains (northeast Spain), peripheral to the Barcelona conurbation, and at a nearby lowland town, using bulk deposition, wet-only deposition, throughfall, and dry deposition inferred from branch-washes and surrogate surfaces (metacrylate plates). Bulk deposition inputs of ammonium and nitrate did not show significant temporal trends over a 16-year period. Bulk inputs of inorganic N were moderate, ranging from 6 to 10 kg N ha-1 year-1 depending on the time period considered and the degree of site exposure to polluted air masses from the Barcelona conurbation. Large dry-sedimented particles played a minor role, since wet-only inputs were virtually identical to bulk inputs. On the contrary, branch- and plate-washes indicated substantial dry inputs of N gases and small particles. Total atmospheric deposition was estimated at 15-22 kg N ha-1 year-1, most of it being retained within the studied broadleaved evergreen forests. Ecosystem N availability is thus likely to be increasing in these forests. © 2002 Elsevier Science Ltd. All rights reserved.

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