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.

El CREAF i la formació forestal.

Rodà F (2002) El CREAF i la formació forestal. Silvicultura 35:7.

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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