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1.
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12 p, 5.9 MB |
Radiation-constrained boundaries cause nonuniform responses of the carbon uptake phenology to climatic warming in the Northern Hemisphere
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Descals, Adrià (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Verger, Aleixandre (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Yin, Gaofei (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Filella, Iolanda (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Fu, Yongshuo H. (Beijing Normal University) ;
Piao, Shilong (Peking University) ;
Janssens, Ivan (University of Antwerp) ;
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Climatic warming has lengthened the photosynthetically active season in recent decades, thus affecting the functioning and biogeochemistry of ecosystems, the global carbon cycle and climate. Temperature response of carbon uptake phenology varies spatially and temporally, even within species, and daily total intensity of radiation may play a role. [...]
2023 -  10.1111/gcb.16502
Global change biology, Vol. 29, Issue 3 (February 2023) , p. 719-730
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2.
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Local interpretation of machine learning models in remote sensing with SHAP : the case of global climate constraints on photosynthesis phenology
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Descals, Adrià (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Verger, Aleixandre (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Yin, Gaofei (Southwest Jiaotong University. Faculty of Geosciences and Environmental Engineering) ;
Filella, Iolanda (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Data-driven models using machine learning have been widely used in remote-sensing applications such as the retrieval of biophysical variables and land cover classification. However, these models behave as a 'black box', meaning that the relationships between the input and predicted variables are hard to interpret. [...]
2023 - 10.1080/01431161.2023.2217982
International Journal of Remote Sensing, Vol. 44, issue 10 (2023) , p. 3160-3173
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3.
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8 p, 931.0 KB |
Aspect Matters : Unraveling Microclimate Impacts on Mountain Greenness and Greening
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Yin, Gaofei (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Xie, Jiangliu (Southwest Jiaotong University) ;
Ma, Dujuan (Southwest Jiaotong University) ;
Xie, Qiaoyun (The University of Western Australia) ;
Verger, Aleixandre (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Descals, Adrià (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Filella, Iolanda (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Mountains are vital ecosystems, yet predicting plant growth there is complex due to diverse microclimates on slopes. Equatorial-facing slopes (EFSs) are drier and warmer, and polar-facing slopes (PFSs) are wetter and colder, than their regional macroclimates. [...]
2023 - 10.1029/2023GL105879
Geophysical Research Letters, Vol. 50, Issue 24 (December 2023) , art. e2023GL105879
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4.
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Chronic drought alters extractable concentrations of mineral elements in Mediterranean forest soils
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Mu, Zhaobin (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Asensio, Dolores (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Sardans i Galobart, Jordi (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Ogaya Inurrigarro, Romà (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Llusia, Joan (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Filella, Iolanda (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Liu, Lei (Nanjing University of Information Science & Technology. Jiangsu Key Laboratory of Agricultural Meteorology) ;
Wang, Xinming (Chinese Academy of Sciences. Guangzhou Institute of Geochemistry. State Key Laboratory of Organic Geochemistry) ;
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Soil mineral elements play a crucial role in ecosystem productivity and pollution dynamics. Climate models project an increase in drought severity in the Mediterranean Basin in the coming decades, which could lead to changes in the composition and concentrations of mineral elements in soils. [...]
2023 - 10.1016/j.scitotenv.2023.167062
Science of the total environment, Vol. 905 (Dec. 2023) , art. 167062
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5.
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Foliar elementome and functional traits relationships identify tree species niche in French Guiana rainforests
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Sardans i Galobart, Jordi (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Llusia, Joan (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Ogaya Inurrigarro, Romà (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Vallicrosa Pou, Helena (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Filella, Iolanda (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Gargallo-Garriga, Albert (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Peguero, Guille (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Van Langenhove, Leandro (University of Antwerp. Department of Biology) ;
Verryckt, Lore (University of Antwerp. Department of Biology) ;
Stahl, Clément (Université des Antilles. AgroParisTech) ;
Courtois, Elodie (Université de Guyane. AgroParisTech) ;
Bréchet, Laëtitia (University of Antwerp. Department of Biology) ;
Tariq, Akash (Chinese Academy of Sciences. Xinjiang Institute of Ecology and Geography. State Key Laboratory of Desert and Oasis Ecology) ;
Zeng, Fanjiang (Chinese Academy of Sciences. Xinjiang Institute of Ecology and Geography. State Key Laboratory of Desert and Oasis Ecology) ;
Alrefaei, Abdulwahed Fahad (King Saud University. Department of Zoology) ;
Wang, Weiqi (Fujian Normal University. Key Laboratory of Humid Subtropical Eco-Geographical Process) ;
Janssens, Ivan (University of Antwerp) ;
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Biogeochemical niche (BN) hypothesis aims to relate species/genotype elemental composition with its niche based on the fact that different elements are involved differentially in distinct plant functions. [...]
2023 - 10.1002/ecy.4118
Ecology, Vol. 104, issue 11 (Nov. 2023) , art. e4118
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6.
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12 p, 1.7 MB |
Photosynthetically active radiation and foliage clumping improve satellite-based NIRv estimates of gross primary production
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Filella, Iolanda (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Descals, Adrià (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Balzarolo, Manuela (Universiteit Antwerpen. Departement Biologie) ;
Liu, Guoxiang (Southwest Jiaotong University. Faculty of Geosciences and Environmental Engineering) ;
Verger, Aleixandre (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Fang, Hongliang (Chinese Academy of Sciences. Institute of Geographic Sciences and Natural Resources Research) ;
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Monitoring gross primary production (GPP) is necessary for quantifying the terrestrial carbon balance. The near-infrared reflectance of vegetation (NIRv) has been proven to be a good predictor of GPP. [...]
2023 - 10.3390/rs15082207
Remote sensing (Basel), Vol. 15, Issue 8 (April 2023) , art. 2207
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7.
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10 p, 1.2 MB |
A broadband green-red vegetation index for monitoring gross primary production phenology
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Yin, Gaofei (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Verger, Aleixandre (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Descals, Adrià (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Filella, Iolanda (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
The chlorophyll/carotenoid index (CCI) is increasingly used for remotely tracking the phenology of photosynthesis. However, CCI is restricted to few satellites incorporating the 531nm band. This study reveals that the Moderate Resolution Imaging Spectroradiometer (MODIS) broadband green reflectance (band 4) is significantly correlated with this xanthophyll-sensitive narrowband (band 11) (R2 = 0:98, p < 0:001), and consequently, the broadband green-red vegetation index GRVI-computed with MODIS band 1 and band 4-is significantly correlated with CCI-computed with MODIS band 1 and band 11 (R2 = 0:97, p < 0:001). [...]
2022 - 10.34133/2022/9764982
Journal of Remote Sensing, Vol. 2022 (March 2022) , art. 9764982
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8.
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8 p, 704.4 KB |
GLOVOCs - Master compound assignment guide for proton transfer reaction mass spectrometry users
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Yáñez Serrano, Ana María (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Filella, Iolanda (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Llusià Benet, Joan (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Gargallo-Garriga, Albert (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Granda, Víctor (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Bourtsoukidis, Efstratios (Max Planck Institute for Chemistry. Department of Atmospheric Chemistry) ;
Williams, Jonathan (Max Planck Institute for Chemistry. Department of Atmospheric Chemistry) ;
Seco, Roger (University of Copenhagen. Department of Biology) ;
Cappellin, L. (Dipartimento di Scienze Chimiche, Università degli Studi di Padova) ;
Werner, C. (University of Freiburg. Ecosystem Physiology) ;
De Gouw, J. (University of Colorado. Department of Chemistry) ;
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
The richness of measurements obtained by Proton-Transfer Reactions Mass Spectrometry (PTR-MS) has opened a new paradigm for the quantification of volatile organic compounds (VOCs). A wide range of compounds can be monitored, however, each detected signal is subject to a compound assignment instead of actual identification because PTR techniques are mass-selective and isomers cannot be separately measured. [...]
2021 - 10.1016/j.atmosenv.2020.117929
Atmospheric Environment, Vol. 244 (Jan. 2021) , art. 117929
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9.
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14 p, 911.1 KB |
Divergent estimates of forest photosynthetic phenology using structural and physiological vegetation indices
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Yin, Gaofei (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Verger, Aleixandre (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Filella, Iolanda (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Descals, Adrià (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
The accurate estimation of photosynthetic phenology using vegetation indices (VIs) is important for measuring the interannual variation of atmospheric CO2 concentrations, but the relative performances of structural and physiological VIs remain unclear. [...]
2020 - 10.1029/2020GL089167
Geophysical Research Letters, Vol. 47, issue 18 (Sep. 2020) , e2020GL0891672020
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10.
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48 p, 1.6 MB |
Amazonian biogenic volatile organic compounds under global change
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Yáñez Serrano, Ana María (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Bourtsoukidis, Efstratios (Max Planck Institute for Chemistry. Department of Atmospheric Chemistry and Multiphase Chemistry) ;
Gomes Alves, Eliane (Max Planck Institute for Biogeochemistry. Department of Biogeochemical Processes) ;
Bauwens, Maite (Royal Belgian Institute for Space Aeronomy) ;
Stavrakou, Trissevgeni (Royal Belgian Institute for Space Aeronomy) ;
Llusià Benet, Joan (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Filella, Iolanda (Centre de Recerca Ecològica i d'Aplicacions Forestals) ;
Guenther, Alex (University of California. Department of Earth System Science) ;
Williams, Jonathan (Max Planck Institute for Chemistry. Department of Atmospheric Chemistry) ;
Artaxo, Paulo (Universidade de Sao Paulo. Instituto de Física) ;
Sindelarova, Katerina (Charles University (Praga, Txèquia). Department of Atmospheric Physics) ;
Doubalova, Jana (Charles University (Praga, Txèquia). Department of Atmospheric Physics) ;
Kesselmeier, Jürgen (Max Planck Institute for Chemistry. Department of Atmospheric Chemistry) ;
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Biogenic volatile organic compounds (BVOCs) play important roles at cellular, foliar, ecosystem and atmospheric levels. The Amazonian rainforest represents one of the major global sources of BVOCs, so its study is essential for understanding BVOC dynamics. [...]
2020 - 10.1111/gcb.15185
Global change biology, Vol. 26, issue 9 (Sep. 2020) , p. 4722-4751
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