Resultats globals: 14 registres trobats en 0.01 segons.
Articles, 14 registres trobats
Contribucions a jornades i congressos, 1 registres trobats
Articles 14 registres trobats  1 - 10següent  anar al registre:
1.
11 p, 8.1 MB Land surface phenology from VEGETATION and PROBA-V data. Assessment over deciduous forests / Bórnez Mejías, Kevin (Centre de Recerca Ecològica i Aplicacions Forestals) ; Descals, Adrià (Centre de Recerca Ecològica i Aplicacions Forestals) ; Verger Ten, Aleixandre (Centre de Recerca Ecològica i Aplicacions Forestals) ; Peñuelas, Josep (Centre de Recerca Ecològica i Aplicacions Forestals)
Land surface phenology has been widely retrieved although no consensus exists on the optimal satellite dataset and the method to extract phenology metrics. This study is the first comprehensive comparison of vegetation variables and methods to retrieve land surface phenology for 1999-2017 time series of Copernicus Global Land products derived from SPOT-VEGETATION and PROBA-V data. [...]
2020 - 10.1016/j.jag.2019.101974
International Journal of Applied Earth Observation and Geoinformation, Vol. 84 (Feb. 2020) , art. 101974  
2.
18 p, 4.5 MB Retrieval of high spatiotemporal resolution leaf area index with Gaussian processes, wireless sensor network, and satellite data fusion / Yin, Gaofei (Southwest Jiaotong University. Faculty of Geosciences and Environmental Engineering) ; Verger Ten, Aleixandre (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Qu, Yonghua (Beijing Normal University. Institute of Remote Sensing Science and Engineering) ; Zhao, Wei (Chinese Academy Sciences. Institute of Mountain Hazards and Environment) ; Xu, Baodong (Huazhong Agricultural University. Macro Agriculture Research Institute) ; Zeng, Yelu (Carnegie Institution for Science. Department of Global Ecology) ; Liu, Ke (Sichuan Academy of Agricultural Science. Institute of Remote Sensing Application) ; Li, Jing (Chinese Academy of Sciences. Institute of Remote Sensing and Digital Earth) ; Liu, Qinhuo (Chinese Academy of Sciences. Institute of Remote Sensing and Digital Earth)
Many applications, including crop growth and yield monitoring, require accurate long-term time series of leaf area index (LAI) at high spatiotemporal resolution with a quantification of the associated uncertainties. [...]
2019 - 10.3390/rs11030244
Remote sensing, Vol. 11, Issue 3 (February 2019) , art. 244  
3.
14 p, 1.3 MB Spatiotemporally representative and cost-efficient sampling design for validation activities in wanglang experimental site / Yin, Gaofei (Chinese Academy of Sciences) ; Li, Ainong (Chinese Academy of Sciences) ; Verger Ten, Aleixandre (Centre de Recerca Ecològica i Aplicacions Forestals)
Spatiotemporally representative Elementary Sampling Units (ESUs) are required for capturing the temporal variations in surface spatial heterogeneity through field measurements. Since inaccessibility often coexists with heterogeneity, a cost-efficient sampling design is mandatory. [...]
2017 - 10.3390/rs9121217
Remote sensing, Vol. 9, Issue 12 (December 2017) , art. 1217  
4.
23 p, 2.4 MB Characterisation of Functional-Trait Dynamics at High Spatial Resolution in a Mediterranean Forest from Sentinel-2 and Ground-Truth Data / Schauman, Santiago (Universidad Nacional de San Luis & CONICET. Grupo de Estudios Ambientales) ; Verger Ten, Aleixandre (Centre de Recerca Ecològica i Aplicacions Forestals) ; Filella Cubells, Iolanda (Centre de Recerca Ecològica i Aplicacions Forestals) ; Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
The characterisation of functional-trait dynamics of vegetation from remotely sensed data complements the structural characterisation of ecosystems. In this study we characterised for the first time the spatial heterogeneity of the intra-annual dynamics of the fraction of absorbed photosynthetically active radiation (FAPAR) as a functional trait of the vegetation in Prades Mediterranean forest in Catalonia, Spain. [...]
2018 - 10.3390/rs10121874
Remote sensing, Vol. 10, Núm 12 (November 2018) , art. 1874  
5.
32 p, 1.5 MB Satellite passive microwaves reveal recent climate-induced carbon losses in African drylands / Brandt, Martin (Københavns Universitet. Department of Geosciences and Natural Resource Management) ; Wigneron, Jean-Pierre (Institut national de la recherche agronomique. Interactions Sol Plante Atmosphère) ; Chave, Jerome (Université Paul Sabatier. Laboratoire Evolution and Diversité Biologique) ; Tagesson, Torbern (Københavns Universitet. Department of Geosciences and Natural Resource Management) ; Peñuelas, Josep (Centre de Recerca Ecològica i Aplicacions Forestals) ; Ciais, Philippe (Laboratoire des Sciences du Climat et de L'Environnement) ; Rasmussen, Kjeld (Københavns Universitet. Department of Geosciences and Natural Resource Management) ; Tian, Feng (Københavns Universitet. Department of Geosciences and Natural Resource Management) ; Mbow, Cheikh (START International Inc.) ; Al-Yaari, Amen (Institut national de la recherche agronomique. Interactions Sol Plante Atmosphère) ; Rodriguez-Fernandez, Nemesio (Centre d'Etudes Spatiales de la BIOsphère) ; Schurgers, Guy (Københavns Universitet. Department of Geosciences and Natural Resource Management) ; Zhang, Wenmin (Københavns Universitet. Department of Geosciences and Natural Resource Management) ; Chang, Jinfeng (Laboratoire des Sciences du Climat et de L'Environnement) ; Kerr, Yann (Centre d'Etudes Spatiales de la BIOsphère) ; Verger Ten, Aleixandre (Centre de Recerca Ecològica i Aplicacions Forestals) ; Tucker, Compton (NASA Goddard Space Flight Center) ; Mialon, Arnaud (Centre d'Etudes Spatiales de la BIOsphère) ; Rasmussen, Laura Vang (Københavns Universitet. Department of Geosciences and Natural Resource Management) ; Fan, Lei (Københavns Universitet. Department of Geosciences and Natural Resource Management) ; Fensholt , Rasmus
The African continent is facing one of the driest periods in the past three decades as well as continued deforestation. These disturbances threaten vegetation carbon (C) stocks and highlight the need for improved capabilities of monitoring large-scale aboveground carbon stock dynamics. [...]
2018 - 10.1038/s41559-018-0530-6
Nature ecology and evolution, Vol. 2 (April 2018) , p. 827-835  
6.
37 p, 3.1 MB Impacts of global change on Mediterranean forests and their services / Peñuelas, Josep (Centre de Recerca Ecològica i Aplicacions Forestals) ; Sardans i Galobart, Jordi (Centre de Recerca Ecològica i Aplicacions Forestals) ; Filella Cubells, Iolanda (Centre de Recerca Ecològica i Aplicacions Forestals) ; Estiarte, Marc (Centre de Recerca Ecològica i Aplicacions Forestals) ; Llusià Benet, Joan (Centre de Recerca Ecològica i Aplicacions Forestals) ; Ogaya Inurrigarro, Romà (Centre de Recerca Ecològica i Aplicacions Forestals) ; Carnicer i Cols, Jofre (Centre de Recerca Ecològica i Aplicacions Forestals) ; Bartrons Vilamala, Mireia (Centre de Recerca Ecològica i Aplicacions Forestals) ; Rivas-Ubach, Albert (Centre de Recerca Ecològica i Aplicacions Forestals) ; Grau Fernández, Oriol (Centre de Recerca Ecològica i Aplicacions Forestals) ; Peguero, Guille (Centre de Recerca Ecològica i Aplicacions Forestals) ; Margalef, Olga (Centre de Recerca Ecològica i Aplicacions Forestals) ; Pla-Rabes, Sergi (Centre de Recerca Ecològica i Aplicacions Forestals) ; Stefanescu, Constantí (Centre de Recerca Ecològica i Aplicacions Forestals) ; Asensio Abella, Ma. Dolores (Centre de Recerca Ecològica i Aplicacions Forestals) ; Preece, Catherine (Centre de Recerca Ecològica i Aplicacions Forestals) ; Liu, Lei (Centre de Recerca Ecològica i Aplicacions Forestals) ; Verger Ten, Aleixandre (Centre de Recerca Ecològica i Aplicacions Forestals) ; Barbeta i Margarit, Adrià (Centre de Recerca Ecològica i Aplicacions Forestals) ; Achotegui Castells, Ander (Centre de Recerca Ecològica i Aplicacions Forestals) ; Gargallo-Garriga, Albert (Centre de Recerca Ecològica i Aplicacions Forestals) ; Sperlich, Dominik (University of Freiburg. Faculty of Environment and Natural Resources) ; Farré Armengol, Gerard (Centre de Recerca Ecològica i Aplicacions Forestals) ; Fernández-Martínez, Marcos (Centre de Recerca Ecològica i Aplicacions Forestals) ; Liu, Daijun (Centre de Recerca Ecològica i Aplicacions Forestals) ; Zhang, Chao (Centre de Recerca Ecològica i Aplicacions Forestals) ; Urbina Barreto, Ifigenia (Centre de Recerca Ecològica i Aplicacions Forestals) ; Camino Serrano, Marta (Centre de Recerca Ecològica i Aplicacions Forestals) ; Vives Ingla, Maria (Centre de Recerca Ecològica i Aplicacions Forestals) ; Stocker, Benjamin (Centre de Recerca Ecològica i Aplicacions Forestals) ; Balzarolo, Manuela (Centre de Recerca Ecològica i Aplicacions Forestals) ; Guerrieri, Rossella (Centre de Recerca Ecològica i Aplicacions Forestals) ; Peaucelle, Marc (Centre de Recerca Ecològica i Aplicacions Forestals) ; Marañón Jiménez, Sara (Centre de Recerca Ecològica i Aplicacions Forestals) ; Bórnez Mejías, Kevin (Centre de Recerca Ecològica i Aplicacions Forestals) ; Mu, Zhaobin (Centre de Recerca Ecològica i Aplicacions Forestals) ; Descals, Adrià (Centre de Recerca Ecològica i Aplicacions Forestals) ; Castellanos, Alejandro (Centre de Recerca Ecològica i Aplicacions Forestals) ; Terradas, Jaume (Centre de Recerca Ecològica i Aplicacions Forestals)
The increase in aridity, mainly by decreases in precipitation but also by higher temperatures, is likely the main threat to the diversity and survival of Mediterranean forests. Changes in land use, including the abandonment of extensive crop activities, mainly in mountains and remote areas, and the increases in human settlements and demand for more resources with the resulting fragmentation of the landscape, hinder the establishment of appropriate management tools to protect Mediterranean forests and their provision of services and biodiversity. [...]
2017 - 10.3390/f8120463
Forests, Vol. 8, Issue 12 (December 2017) , art. 463  
7.
27 p, 5.8 MB Local vegetation trends in the Sahel of Mali and Senegal using long time series FAPAR satellite products and field measurement (1982-2010) / Brandt, Martin (University of Bayreuth. Institute of Geography) ; Verger Ten, Aleixandre (Centre de Recerca Ecològica i Aplicacions Forestals) ; Diouf, Abdoul Aziz (Centre de Suivi Ecologique. Dakar-Fann) ; Baret, Frédéric (Unité mixte de recherches. Environnement Méditerranéen et Modélisation des Agro-Hydrosystèmes et Institut National de Recherche Agronomique) ; Samimi, Cyrus (University of Bayreuth. BayCEER)
Local vegetation trends in the Sahel of Mali and Senegal from Geoland Version 1 (GEOV1) (5 km) and the third generation Global Inventory Modeling and Mapping Studies (GIMMS3g) (8 km) Fraction of Absorbed Photosynthetically Active Radiation (FAPAR) time series are studied over 29 years. [...]
2014 - 10.3390/rs6032408
Remote sensing, Vol. 6 Issue 3 (March 2014) , p. 2408-2434  
8.
13 p, 3.2 MB Atmospheric deposition, CO₂, and change in the land carbon sink / Fernández-Martínez, Marcos (Centre de Recerca Ecològica i Aplicacions Forestals) ; Vicca, Sara (Universiteit Antwerpen. Departement Biologie) ; Peñuelas, Josep (Centre de Recerca Ecològica i Aplicacions Forestals) ; Janssens, Ivan A. (Universiteit Antwerpen. Departement Biologie) ; Ciais, Philippe (Laboratoire des Sciences du Climat et de l'Environnement) ; Obersteiner, Michael (International Institute for Applied Systems Analysis) ; Bartrons Vilamala, Mireia (Centre de Recerca Ecològica i Aplicacions Forestals) ; Sardans i Galobart, Jordi (Centre de Recerca Ecològica i Aplicacions Forestals) ; Verger Ten, Aleixandre (Centre de Recerca Ecològica i Aplicacions Forestals) ; Canadell, Josep G. (Global Carbon Project) ; Chevallier, Frédéric (Laboratoire des Sciences du Climat et de L'Environnement) ; Wang, X. (Sino-French Institute for Earth System Science) ; Bernhofer, C. (Technische Universität Dresden. Institut für Hydrologie und Meteorologie) ; Curtis, P. S. (The Ohio State University. Department of Evolution, Ecology, and Organismal Biology) ; Gianelle, D. (Fondazione Edmund Mach. Istituto agrario di San Michele all'Adige) ; Grünwald, T. (Technische Universität Dresden. Institut für Hydrologie und Meteorologie) ; Heinesch, B. (Université de Liege. Gembloux Agro-Bio Tech) ; Ibrom, A. (Danmarks Tekniske Universitet. Department of Environmental Engineering) ; Knohl, A. (Georg-August University of Göttingen. Faculty of Forest Sciences and Forest Ecology) ; Laurila, T. (Ilmatieteen laitos) ; Law, B. E. (Oregon State University. Department of Forest Ecosystems & Society) ; Limousin, Jean-Marc (Centre d'Ecologie Fonctionnelle et Evolutive) ; Longdoz, B. (Université de Lorraine) ; Loustau, D. (Institut national de la recherche agronomique. Interactions Sol Plante Atmosphère) ; Mammarella, I. (Helsingfors Universitet. Department of Physics) ; Matteucci, G. (Consiglio Nazionale delle Ricerche. Istituto di Biologia Agroambientale e Forestale) ; Monson, R. K. (University of Arizona. School of Natural Resources and the Environment) ; Montagnani, L. (Libera Università di Bolzano. Facoltà di Scienze e Tecnologie informatiche) ; Moors, E. J. (Universiteit van Amsterdam) ; Munger, J. W. (Harvard University. School of Engineering and Applied Sciences,) ; Papale, D. (Università degli studi della Tuscia. Dipartimento per l'Innovazione dei sistemi biologici, agroalimentari e forestali) ; Piao, S. L. (Sino-French Institute for Earth System Science)
Concentrations of atmospheric carbon dioxide (CO₂) have continued to increase whereas atmospheric deposition of sulphur and nitrogen has declined in Europe and the USA during recent decades. Using time series of flux observations from 23 forests distributed throughout Europe and the USA, and generalised mixed models, we found that forest-level net ecosystem production and gross primary production have increased by 1% annually from 1995 to 2011. [...]
2017 - 10.1038/s41598-017-08755-8
Scientific reports, Vol. 7, art. 9632 (2017)  
9.
16 p, 121.8 KB Human population growth offsets climate-driven increase in woody vegetation in sub-Saharan Africa / Brandt, Martin (University of Copenhagen. Department of Geosciences and Natural Resource Management) ; Rasmussen, Kjeld (University of Copenhagen. Department of Geosciences and Natural Resource Management) ; Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Verger Ten, Aleixandre (Centre de Recerca Ecològica i Aplicacions Forestals)
The rapidly growing human population in sub-Saharan Africa generates increasing demand for agricultural land and forest products which presumably leads to deforestation. Conversely, a greening of African drylands has been reported, but this has been difficult to associate with changes in woody vegetation. [...]
2017 - 10.1038/s41559-017-0081
Nature ecology and evolution, Vol. 1, art. 0081 (March 2017)
6 documents
10.
48 p, 2.1 MB Vegetation baseline phenology from kilometric global LAI satellite products / Verger Ten, Aleixandre (Centre de Recerca Ecològica i Aplicacions Forestals) ; Filella Cubells, Iolanda (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Baret, Frédéric (Environnement Méditerranéen et Modélisation des Agro-Hydrosystèmes) ; Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Land surface phenology derived from remotely sensed satellite data can substantially improve our macroecological knowledge and the representation of phenology in earth system models. We characterized the baseline phenology of the vegetation at the global scale from the GEOCLIM climatology of leaf area index (LAI) estimated from 1-km SPOT-VEGETATION time series for 1999-2010. [...]
2016 - 10.1016/j.rse.2016.02.057
Remote sensing of environment, Vol. 178, (June 2016) , p. 1-14  

Articles : 14 registres trobats   1 - 10següent  anar al registre:
Contribucions a jornades i congressos 1 registres trobats  
1.
4 p, 504.9 KB Caracterizacion de la fenología de la vegetación a escala global mediante series temporales SPOT VEGETATION / Verger Ten, Aleixandre (Centre de Recerca Ecològica i Aplicacions Forestals) ; Filella Cubells, Iolanda (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Baret, Frédéric (Institut national de la recherche agronomique (França)) ; Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
La fenología de la vegetación a escala global se caracterizó a partir de series temporales del índice de área foliar (LAI) SPOT VEGETATION a 1-km de resolución espacial en el periodo 1999-2010. [...]
We characterized the phenology of the vegetation at the global scale from the mean seasonal leaf area index (LAI) estimated from 1-km SPOT VEGETATION time series for 1999-2010. The satellite-derived phenology was spatially consistent with the global distributions of climatic drivers and biome land cover. [...]

2015
Congreso de la Asociación Española de Teledetección. Sevilla, Espanya, 16è : 2015  

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