Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Ralf Geyer"'
Publikováno v:
Ecological Research. 30:279-292
Simulating regional variations in gross primary production (GPP) and yields of major land cover types is complex due to differences in plant physiological prop- erties, landscape topography, and climate gradients. In our study, we analyzed the inter-
Autor:
Olimpia Kolcun, Ralf Geyer, Margarete Wartinger, Nguyen Quoc Dinh, Martin K. Schmitt, Ulrike Tappeiner, Alexander Cernusca, Markus Schmidt, Michael Bahn, Georg Wohlfahrt, Dennis O. Otieno, Markus Reichstein, John Tenhunen, Annalea Lohila, Samuel G.K. Adiku, Quan Wang
Publikováno v:
Global and Planetary Change. 67:29-43
A process-based spatial simulation model was used to estimate gross primary production, ecosystem respiration, net ecosystem CO2 exchange and water use by the vegetation in Stubai Valley, Austria at landscape scale. The simulations were run for indiv
Autor:
Alexander Knohl, Werner L. Kutsch, Kim Pilegaard, Quan Wang, Timo Vesala, Eva Falge, Bernard Heinesch, Christian Bernhofer, Annalea Lohila, André Granier, Bogdan H. Chojnicki, Chris Vogel, Ralf Geyer, M. Altaf Arain, Christof Ammann, Tilden P. Meyers, Katherine E. Owen, Marc Aubinet, Thomas Gruenwald, Mika Aurela, Shashi B. Verma, Julian L. Hadley, Markus Reichstein, Eddy Moors, Xiangming Xiao, David Y. Hollinger, Christine Moureaux, Paul C. Stoy, John Tenhunen, Nobuko Saigusa
Publikováno v:
Global Change Biology. 13:734-760
This paper examines long-term eddy covariance data from 18 European and 17 North American and Asian forest, wetland, tundra, grassland, and cropland sites under non-water-stressed conditions with an empirical rectangular hyperbolic light response mod
Publikováno v:
Theoretical and Applied Climatology. 68:109-124
Tree canopy water use and foliage net CO2 uptake (NPP) were simulated for a 31-year-old Pinus sylvestris (Scots pine) plantation near Hartheim, in the Upper Rhine Valley, Germany with a mechanistically-based, three-dimensional stand gas-exchange mode
Publikováno v:
Annales des Sciences Forestières. 55:125-139
Tree xylem sapflow rates of 140-year-old Norway spruce (Picea abies) were scaled to the stand level and compared to canopy transpiration predicted by the stand gas exchange model STANDFLUX. Variation in sapflux densities between individual sensors wa
Publikováno v:
Theoretical and Applied Climatology. 53:145-156
During the Hartheim experiment (HartX) 1992, conducted in the Upper Rhine Valley, Germany, we estimated water vapor flux from the understory by several methods as reported in Wedler et al. (this issue). We also examined the photosynthetic gas exchang
Autor:
KATHERINE E. OWEN, JOHN TENHUNEN, MARKUS REICHSTEIN, QUAN WANG, EVA FALGE, RALF GEYER, XIANGMING XIAO, PAUL STOY, CHRISTOF AMMANN, ALTAF ARAIN, MARC AUBINET, MIKA AURELA, CHRISTIAN BERNHOFER, BOGDAN H. CHOJNICKI, ANDRÉ GRANIER, THOMAS GRUENWALD, JULIAN HADLEY, BERNARD HEINESCH, DAVID HOLLINGER, ALEXANDER KNOHL, WERNER KUTSCH, ANNALEA LOHILA, TILDEN MEYERS, EDDY MOORS, CHRISTINE MOUREAUX, KIM PILEGAARD, NOBUKO SAIGUSA, SHASHI VERMA, TIMO VESALA, CHRIS VOGEL
Publikováno v:
Global Change Biology
Global Change Biology, Wiley, 2007, 13 (4), pp.734-760. ⟨10.1111/j.1365-2486.2007.01326.x⟩
Global Change Biology, 13(4), 734-760
Global Change Biology 13 (2007) 4
Global Change Biology, Wiley, 2007, 13 (4), pp.734-760. ⟨10.1111/j.1365-2486.2007.01326.x⟩
Global Change Biology, 13(4), 734-760
Global Change Biology 13 (2007) 4
International audience; This paper examines long-term eddy covariance data from 18 European and 17 North American and Asian forest, wetland, tundra, grassland, and cropland sites under nonwater- stressed conditions with an empirical rectangular hyper