Menos agua, menos nutrientes: el cambio climático en los ecosistemas mediterráneos.

Sardans J, Peñuelas J, Estiarte M (2010) Menos agua, menos nutrientes: el cambio climático en los ecosistemas mediterráneos. UAB Divulga 10/2010.

Menys aigua, menys nutrients: el canvi climàtic en els nostres ecosistemes mediterranis.

Sardans J, Peñuelas J, Estiarte M (2010) Menys aigua, menys nutrients: el canvi climàtic en els nostres ecosistemes mediterranis. UAB Divulga 10/2010.

Intégration des effets du changement climatique sur les forêts méditerranéennes : observation, expérimentation, modélisation et gestion p. 351. Introducing the climate change effects on Mediterranean forest ecosystems: observation, experimentation, simul

Peñuelas J, Gracia C, Filella I, Jump A, Carnicer J, Coll M, Lloret F, Curiel J, Estiarte M, Rutishauser T, Ogaya R, LLusiá J, Sardans J (2010) Intégration des effets du changement climatique sur les forêts méditerranéennes : observation, expérimentation, modélisation et gestion p. 351. Introducing the climate change effects on Mediterranean forest ecosystems: observation, experimentation, simul ation and management . Forêt Méditerranéenne XXXI, nº 4 pp. 357. ISSN 0245-484X.

Phenology in the local, regional and global ecology of climate change. Phenology 2010: Climate change impacts and adaptations.

Peñuelas J, Filella I, Estiarte M, Rutishuaser T, Garbulsky M (2010) Phenology in the local, regional and global ecology of climate change. Phenology 2010: Climate change impacts and adaptations. Trinity College Dublin. pp 1 proceedings.

Impactes, vulnerabilitat i retroalimentacions climàtiques als ecosistemes terrestres catalans. A: Llebot E. (ed). Segon informe sobre el canvi climàtic a Catalunya.

Peñuelas J, Filella I, Estiarte M, Ogaya R, Llusià J, Sardans J, Jump A, Curiel J, Carnicer J, Rutishauser T, Rico L, Keenan T, Garbulsky M, Coll M, Díaz de Quijano M, Seco R, Rivas-Ubach A, Silva J, Boada M, Stefanescu C, Lloret F, Terradas J (2010) Impactes, vulnerabilitat i retroalimentacions climàtiques als ecosistemes terrestres catalans. A: Llebot E. (ed). Segon informe sobre el canvi climàtic a Catalunya. Institut d'Estudis Catalans i Generalitat de Catalunya. pp. 373-407.

Projected Climate Change Impacts on Biodiversity in Mediterranean Ecosystems. In Atlas of Biodiversity Risk. Eds. Settele J, Penev L, Georgiev T, Grabaum R, Grobelnik V, Hammen V, Klotz S, Kühn I.

Peñuelas J, Estiarte M, Prieto P, Sardans J, Jump A Moreno JM, Torres I, Cespedes B, Pla E, Sabaté S, Gracia CA (2010) Projected Climate Change Impacts on Biodiversity in Mediterranean Ecosystems. In Atlas of Biodiversity Risk. Eds. Settele J, Penev L, Georgiev T, Grabaum R, Grobelnik V, Hammen V, Klotz S, Kühn I. Pensoft Publishers. Sofia-Moscow. ISBN 978-954-642-446-4 (print) and ISBN 978-954-642-447-1 (e-book).

Genome size unaffected by moderate changes in climate and phosphorus availability in Mediterranean plants.

Pellicer J, Estiarte M, Garcia S, Garnatje T, Peñuelas J, Sardans J, Valles J (2010) Genome size unaffected by moderate changes in climate and phosphorus availability in Mediterranean plants. African Journal of Biotechnology 9: 6070-6077.

Photosynthesis and productivity in a changing world: the assessment of terrestrial CO2 sinks. The 15th International Congress of Photosynthesis, International Society of Photosynthesis Research (ISPR), August 22-27 2010.

Josep Peñuelas, Romà Ogaya, Pep Canadell, Ulo Niinemets, Estiarte M, Coll M, Carnicer J, Greenberg J, Guenther A, Garbulsky M, Filella I (2010) Photosynthesis and productivity in a changing world: the assessment of terrestrial CO2 sinks. The 15th International Congress of Photosynthesis, International Society of Photosynthesis Research (ISPR), August 22-27 2010. Beijing China pp. 326-327 -proceedings.

Responses of the reflectance indices PRI and NDVI to experimental warming and drought in European shrublands along a north-south climatic gradient

Mänd P., Hallik L., Peñuelas J., Nilson T., Duce P., Emmett B.A., Beier C., Estiarte M., Garadnai J., Kalapos T., Schmidt I.K., Kovács-Láng E., Prieto P., Tietema A., Westerveld J.W., Kull O. (2010) Responses of the reflectance indices PRI and NDVI to experimental warming and drought in European shrublands along a north-south climatic gradient. Remote Sensing of Environment. 114: 626-636.
Enllaç
Doi: 10.1016/j.rse.2009.11.003

Resum:

The aim of this study was to evaluate the use of ground-based canopy reflectance measurements to detect changes in physiology and structure of vegetation in response to experimental warming and drought treatment at six European shrublands located along a North-South climatic gradient. We measured canopy reflectance, effective green leaf area index (green LAIe) and chlorophyll fluorescence of dominant species. The treatment effects on green LAIe varied among sites. We calculated three reflectance indices: photochemical reflectance index PRI [531 nm; 570 nm], normalized difference vegetation index NDVI680 [780 nm; 680 nm] using red spectral region, and NDVI570 [780 nm; 570 nm] using the same green spectral region as PRI. All three reflectance indices were significantly related to green LAIe and were able to detect changes in shrubland vegetation among treatments. In general warming treatment increased PRI and drought treatment reduced NDVI values. The significant treatment effect on photochemical efficiency of plants detected with PRI could not be detected by fluorescence measurements. However, we found canopy level measured PRI to be very sensitive to soil reflectance properties especially in vegetation areas with low green LAIe. As both soil reflectance and LAI varied between northern and southern sites it is problematic to draw universal conclusions of climate-derived changes in all vegetation types based merely on PRI measurements. We propose that canopy level PRI measurements can be more useful in areas of dense vegetation and dark soils. © 2009.

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