Articles

Articles 236 registres trobats  inicianterior217 - 226següent  anar al registre: La cerca s'ha fet en 0.01 segons. 
217.
2 p, 184.7 KB Seguint la traça als elements traça / Sardans i Galobart, Jordi (Centre de Recerca Ecològica i Aplicacions Forestals) ; Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Montes, Fernando (Universitat Autònoma de Barcelona. Unitat d’Ecologia Global CREAF-CEAB-CSIC)
Els elements traça són elements que presenten una concentració de menys de cent parts per milió a la mostra, però que són de gran interès pels seus efectes nocius. L’increment de l'emissió d’elements traça en les últimes dècades degut a les activitats humanes n'ha implicat un augment de l'acumulació en sòls i sediments, augmentant el risc de contaminació per molts ecosistemes incloent els agrícoles. [...]
2011
UAB divulga, octubre 2011, p. 1-2  
218.
12 p, 181.5 KB Drought-resistant fungi control soil organic matter decomposition and its response to temperature / Curiel Yuste, Jorge (Centre de Recerca Ecológica i Aplicacions Forestals. Unitat d'Ecologia) ; Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Sardans i Galobart, Jordi (Centre de Recerca Ecològica i Aplicacions Forestals) ; Estiarte, M. (Centre de Recerca Ecológica i Aplicacions Forestals. Unitat d'Ecologia) ; García-Mas, J. (Centre de Recerca Agrigenòmica) ; Mattana, S. (Centre de Recerca Ecológica i Aplicacions Forestals. Unitat d'Ecologia) ; Ogaya, R. (Centre de Recerca Ecológica i Aplicacions Forestals. Unitat d'Ecologia) ; Pujol, M. (Centre de Recerca Agrigenòmica)
Microbial-mediated decomposition of soil organic matter (SOM) ultimately makes a considerable contribution to soil respiration, which is typically the main source of CO2 arising from terrestrial ecosystems. [...]
2011
Global Change Biology, Vol. 17, Núm. 3 (March 2011) , p. 1475-1486  
219.
16 p, 218.8 KB Responses of terrestrial ecosystems to temperature and precipitation change: a meta-analysis of experimental manipulation / Wu, Zhuoting (Northern Arizona University . Department of Biological Sciences and Merriam-Powell Center for Environmental Research) ; Dijkstra, Paul (Northern Arizona University . Department of Biological Sciences and Merriam-Powell Center for Environmental Research) ; Koch, George (Northern Arizona University . Department of Biological Sciences and Merriam-Powell Center for Environmental Research) ; Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Hungate, Bruce (Northern Arizona University . Department of Biological Sciences and Merriam-Powell Center for Environmental Research)
Global mean temperature is predicted to increase by 2–7 °C and precipitation to change across the globe by the end of this century. To quantify climate effects on ecosystem processes, a number of climate change experiments have been established around the world in various ecosystems. [...]
2011
Global Change Biology, Vol. 17, Núm. 2 (febrer 2011) , p. 927-942  
220.
15 p, 265.0 KB Faster returns on ‘leaf economics’ and different biogeochemical niche in invasive compared with native plant species / Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Sardans i Galobart, Jordi (Centre de Recerca Ecològica i Aplicacions Forestals) ; Llusià, Joan (Centre de Recerca Ecològica i Aplicacions Forestals. Unitat d'Ecofisiologia i Canvi Global) ; Owen, Susan M. (Centre de Recerca Ecològica i Aplicacions Forestals. Unitat d'Ecofisiologia i Canvi Global) ; Carnicer, Jofre (Centre de Recerca Ecològica i Aplicacions Forestals. Unitat d'Ecofisiologia i Canvi Global) ; Giambelluca, Thomas (University of Hawaii at Manoa. Department of Geography) ; Rezende, Enrico (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia) ; Waite, Mashuri (University of Hawaii at Manoa. Department of Botany) ; Úlo Niinemets (Estonian University of Life Sciences. Institute of Agricultural and Environmental Sciences)
Plant-invasive success is one of the most important current global changes in the biosphere. To understand which factors explain such success, we compared the foliar traits of 41 native and 47 alien-invasive plant species in Oahu Island (Hawaii), a location with a highly endemic flora that has evolved in isolation and is currently vulnerable to invasions by exotic plant species. [...]
2010
Global Change Biology, Vol. 16, Núm. 8 (Agost 2010) , p. 2171-2185  
221.
8 p, 173.7 KB Remote estimation of carbon dioxide uptake by a Mediterranean forest / Garbulsky, Martín Fabio (Centre de Recerca Ecològica i Aplicacions Forestals. Unitat d'Ecofisiologia i Canvi Global) ; Filella Cubells, Iolanda (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Peñuelas, Josep (Centre de Recerca Ecològica i Aplicacions Forestals. Unitat d'Ecofisiologia i Canvi Global) ; Papale, Dario (Universidad de Buenos Aires. Faculty of Agronomy)
The estimation of the carbon balance in ecosystems, regions, and the biosphere is currently one of the main concerns in the study of the ecology of global change. Current remote sensing methodologies for estimating gross primary productivity are not satisfactory because they rely too heavily on (i) the availability of climatic data, (ii) the definition of land-use cover, and (iii) the assumptions of the effects of these two factors on the radiation-use efficiency of vegetation (RUE). [...]
2008
Global Change Biology, Vol. 14, Núm. 12 (Desembre 2008) , p. 2860–2867  
222.
13 p, 522.7 KB Twentieth century changes of tree-ring δ13C at the southern range-edge of Fagus sylvatica: increasing water-use efficiency does not avoid the growth decline induced by warming at low altitudes / Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Hunt, Jenny M. (Centre de Recerca Ecològica i Aplicacions Forestals. Unitat d'Ecofisiologia i Canvi Global) ; Ogaya Inurrigarro, Romà (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Jump, Alistair S. (Centre de Recerca Ecològica i Aplicacions Forestals. Unitat d'Ecofisiologia i Canvi Global)
We aimed to gain knowledge on the changes in intrinsic water use efficiency (iWUE) in response to increasing atmospheric CO2 concentrations and climate change over the last century. We investigated the variation in the iWUE of mature Fagus sylvatica trees located in the higher, central and lower altitudinal forest limits (HFL, CFA and LFL) of one of the southernmost sites of beech distribution in Europe, the Montseny Mountains in Catalonia (northeast Spain), during the last century by analysing the δ13C of their tree rings. [...]
2008
Global Change Biology, Vol. 14, Núm. 5 (Maig 2008) , p. 1076-1088  
223.
7 p, 227.6 KB Simulated climate change provokes rapid genetic change in the Mediterranean shrub Fumana thymifolia / Jump, Alistair (Centre de Recerca Ecològica i Aplicacions Forestals. Unitat d'Ecofisiologia i Canvi Global) ; Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Rico, Laura (Centre de Recerca Ecològica i Aplicacions Forestals. Unitat d'Ecofisiologia i Canvi Global) ; Ramallo, Elisenda (Centre de Recerca Ecològica i Aplicacions Forestals. Unitat d'Ecofisiologia i Canvi Global) ; Estiarte, Marc (Centre de Recerca Ecològica i Aplicacions Forestals. Unitat d'Ecofisiologia i Canvi Global) ; Martinez-Izquierdo, José A. (Consorci Laboratori CSIC-IRTA de Genetica Molecular Vegetal) ; Lloret Maya, Francisco (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Rapid climate change will impose strong directional selection pressures on natural plant populations. Climate-linked genetic variation in natural populations indicates that an evolutionary response is possible. [...]
2007
Global Change Biology, Vol. 14, Núm. 3 (March 2007) , p. 637-643  
224.
13 p, 372.3 KB Warming and drought alter C and N concentration, allocation and accumulation in a Mediterranean shrubland / Sardans i Galobart, Jordi (Centre de Recerca Ecològica i Aplicacions Forestals) ; Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Estiarte, Marc (Centre de Recerca Ecologica i Aplicacions Forestals. Ecophysiology and Global Change Unit) ; Prieto, Patricia (Centre de Recerca Ecologica i Aplicacions Forestals. Ecophysiology and Global Change Unit)
We investigated the effects of warming and drought on C and N concentrations, nitrogen use efficiency (NUE), and C and N accumulation in different ecosystem compartments. We conducted a 6-year (1999–2005) field experiment to simulate the climate conditions projected by IPCC models for the coming decades in a Mediterranean shrubland. [...]
2008
Global Change Biology, Vol. 14, Núm. 10 (Octubre 2008) , p. 2304-2316  
225.
19 p, 437.9 KB Response of plant species richness and primary productivity in shrublands along a north–south gradient in Europe to seven years of experimental warming and drought: reductions in primary productivity in the heat and drought year of 2003 / Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Prieto, Patricia (Centre de Recerca Ecològica i Aplicacions Forestals) ; Beier, Claus (RISØ National Laboratory) ; Cessaraccio, Carla (National Research Council of Italy. Institute of Biometeorology) ; De Angelis, Paolo (University of Tuscia. Department of Forest Environment and Resources) ; De Dato, Giovanbattista (University of Tuscia. Department of Forest Environment and Resources) ; Emmett, Bridget A. (Centre for Ecology and Hydrology-Bangor) ; Estiarte, Marc (Centre de Recerca Ecològica i Apicacions Forestals) ; Garadnai, János (Hungarian Academy of Sciences. Institute of Ecology and Botany) ; Gorissen, Antonie (Plant Research International) ; Lang, Edit Kovacs (Hungarian Academy of Sciences. Institute of Ecology and Botany) ; Kröel-Dulay, György (Hungarian Academy of Sciences. Institute of Ecology and Botany) ; Llorens, Laura (Centre de Recerca Ecològica i Apicacions Forestals) ; Pellizaro, Grazia (National Research Council of Italy. Institute of Biometeorology) ; Riis-Nielsen, Torben (University of Copenhagen. University of Copenhagen) ; Schmidt, Inger K. (University of Copenhagen. University of Copenhagen) ; Sirca, Constantino (Univeristy of Sassari. Department of Economics and Tree Crops) ; Sowerby, Alwyn (Centre for Ecology and Hydrology-Bangor) ; Spano, Donatella (Univeristy of Sassari. Department of Economics and Tree Crops) ; Tietema, Albert (Universiteit van Amsterdam. Center for Geo-ecological Research)
We used a nonintrusive field experiment carried out at six sites – Wales (UK), Denmark (DK), the Netherlands (NL), Hungary (HU), Sardinia (Italy – IT), and Catalonia (Spain – SP) – along a climatic and latitudinal gradient to examine the response of plant species richness and primary productivity to warming and drought in shrubland ecosystems. [...]
2007
Global Change Biology, Vol. 13, Núm. 12 (Desembre 2007) , p. 2563-2581  
226.
13 p, 316.7 KB Monoterpene emissions from rubber trees (Hevea brasiliensis) in a changing landscape and climate: chemical speciation and environmental control / Wang, Yong-Feng (Chinese Academy of Sciences. Xishuangbanna Tropical Botanical Garden) ; Owen, Susan M. (Centre de Recerca Ecològica i Aplicacions Forestals. Unitat d'Ecofisiologia i Canvi Global) ; Li, Qing-Jun (Chinese Academy of Sciences. Xishuangbanna Tropical Botanical Garden) ; Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Emissions of biogenic volatile organic compounds (VOCs) have important roles in ecophysiology and atmospheric chemistry at a wide range of spatial and temporal scales. Tropical regions are a major global source of VOC emissions and magnitude and chemical speciation of VOC emissions are highly plant-species specific. [...]
2007
Global Change Biology, Vol. 13, Núm. 11 (Novembre 2007) , p. 2270-2282  

Articles : 236 registres trobats   inicianterior217 - 226següent  anar al registre:
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