Climate change effects on Mediterranean forests: from observations to experimentation, from genetics to remote sensing.

Peñuelas J., Estiarte M, Ogaya R, Filella I, Jump A, Garbulsky M, Sardans J., Llusià J, Seco R, Alessio G., Hunt J, Owen S, Asensio D, Prieto P, Ribas A, Carrillo B, Blanch S, Coll M, Kefauer S, Stefanescu C, Lloret F, Terradas J (2007) Climate change effects on Mediterranean forests: from observations to experimentation, from genetics to remote sensing. Afforestation and sustainable forests as means to combat desertification. 16-19 April Jerusalem, Israel, p. 50.

Using plant biomonitors and flux modelling to develop O 3 dose-response relationships in Catalonia

Filella I., Peñuelas J., Ribas A. (2005) Using plant biomonitors and flux modelling to develop O 3 dose-response relationships in Catalonia. Environmental Pollution. 134: 145-151.
Enllaç
Doi: 10.1016/j.envpol.2004.07.007

Resum:

We used tobacco Bel-W3 biomonitoring data and ozone flux modelling (WINDEP model) with the aim of developing the absorbed dose-response relationship, and comparing this approach with the most commonly used AOT40 (the sum of hourly ozone concentrations above a cut-off of 40 ppb during daylight hours, when global radiation exceeds 50 W m -2) in the estimation of exposure-damage curves. Leaf damage values were more related to OAD 15 days, potential (potential ozone absorbed dose calculated over 15 consecutive days) than to AOT40 in all the studied stations. An OAD 15 days, potential of 180 mg m -2 was found to be the threshold for damage to the most sensitive species in this region under well watered conditions. The results show the applicability of the flux approach for risk assessment at the local scale, the improvement of the ozone damage estimation when the potential absorbed dose is modelled and used instead of just the ozone exposure, and finally, the possibilities opened by the use of biomonitoring networks. Modelling of biomonitors ozone absorbed dose improves damage estimation in comparison with exposure indices such as AOT40. © 2004 Elsevier Ltd. All rights reserved.

Llegeix més

Passeig ecofisiològic per l'espai i pel temps: l'estudi de les alteracions produïdes pels canvis climàtics i atmosfèrics en l'estructura i el funcionament de les plantes i dels ecosistemes terrestres.

Peñuelas J, Filella I, Estiarte M, Llusià J, Ogaya R, Ribas A, Llorens L, Mangiron M, Munné-Bosch S, Bruna P, Prieto P, Asensio D, Sardans J, Serrano L, Oliveira G, Castells E, Rodà F, Lloret F, Terradas J (2003) Passeig ecofisiològic per l'espai i pel temps: l'estudi de les alteracions produïdes pels canvis climàtics i atmosfèrics en l'estructura i el funcionament de les plantes i dels ecosistemes terrestres. Treballs de la Societat Catalana de Biologia 54:65-84.

Plant Ecophysiological studies in the frame of global changes: upscaling from molecule to environment, or walking across space and time.

Peñuelas J, Filella I, Estiarte M, Ogaya R, Ribas A, Llorens L, Mangirón M, Munné S, Bruna P, Sardans J, Prieto P, Asensio D (2002) Plant Ecophysiological studies in the frame of global changes: upscaling from molecule to environment, or walking across space and time. 13 th Congress of the Federation of European Societies of Plant Physiology, Crete. Greece 2002.

Dependence of ozone biomonitoring on meteorological conditions of different sites in Catalonia (N.E. Spain)

Peñuelas J., Ribas A., Gimeno B.S., Filella I. (1999) Dependence of ozone biomonitoring on meteorological conditions of different sites in Catalonia (N.E. Spain). Environmental Monitoring and Assessment. 56: 221-224.
Enllaç
Doi: 10.1023/A:1006062613552

Resum:

Evaluation of visual symptoms of ozone damage was conducted in the network of bioindicater rural stations of Catalonia (NE Spain) every 14 days from May to October. Damage rates of ozone (and consequently, ozone biomonitoring capacity of bioindicators) were found to vary highly in time and space depending on the local environmental and meteorological conditions. Lower ozone damage to foliage was produced when meteorological conditions favour stomata resistance. Modulatory effects of meteorological conditions need to be considered in biomonitoring and when modeling plant ozone doses and damage.

Llegeix més

Evaluation of tobacco cultivars as bioindicators and biomonitors of ozone phytotoxical levels in Catalonia.

Ribas A, Filella I, Gimeno BS, Peñuelas J (1998) Evaluation of tobacco cultivars as bioindicators and biomonitors of ozone phytotoxical levels in Catalonia. Water, Air and Soil Pollution 107:347-365.

Climate change and plant ozone damage in the mediterranean region.

Ribas A, Peñuelas J, Gimeno BS, Filella I (1998) Climate change and plant ozone damage in the mediterranean region. The Earth's Changing Land GCTE-LUCC Open Science Conference on Global Change Abstracts. Institut Cartogràfic de Catalunya, Barcelona, pp. 187.