Results 191 to 200 of about 19,476 (232)
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Global Change Biology, 1999
SummaryGiven that neither absolute measures nor direct model validations of global terrestrial net primary productivity (NPP) are feasible, intercomparison of global NPP models provides an effective tool to check model consistency. For this study, we tested the assumption that water availability is the primary limiting factor of NPP in global ...
Galina Churkina
exaly +4 more sources
SummaryGiven that neither absolute measures nor direct model validations of global terrestrial net primary productivity (NPP) are feasible, intercomparison of global NPP models provides an effective tool to check model consistency. For this study, we tested the assumption that water availability is the primary limiting factor of NPP in global ...
Galina Churkina
exaly +4 more sources
Global Change Biology, 1999
SummaryEstimates of the seasonal absorbed fraction of photosynthetically active radiation (FPAR) and net primary productivity (NPP) are compared among four production efficiency models (PEMs) and seven terrestrial biosphere models simulating canopy development.
AlbertE Bondeau, Jörg Kaduk
exaly +4 more sources
SummaryEstimates of the seasonal absorbed fraction of photosynthetically active radiation (FPAR) and net primary productivity (NPP) are compared among four production efficiency models (PEMs) and seven terrestrial biosphere models simulating canopy development.
AlbertE Bondeau, Jörg Kaduk
exaly +4 more sources
Global Change Biology, 1999
SummaryTo analyse the broad‐scale behaviour of 15 global models of the terrestrial biosphere, we evaluated the sensitivity of simulated net primary productivity (NPP) to spatial and seasonal variations in precipitation, temperature and solar radiation, and to the Normalized Difference Vegetation Index (NDVI).
Jörg Kaduk
exaly +3 more sources
SummaryTo analyse the broad‐scale behaviour of 15 global models of the terrestrial biosphere, we evaluated the sensitivity of simulated net primary productivity (NPP) to spatial and seasonal variations in precipitation, temperature and solar radiation, and to the Normalized Difference Vegetation Index (NDVI).
Jörg Kaduk
exaly +3 more sources
Global Change Biology, 1999
SummaryAnnual and seasonal net primary productivity estimates (NPP) of 15 global models across latitudinal zones and biomes are compared. The models simulated NPP for contemporary climate using common, spatially explicit data sets for climate, soil texture, and normalized difference vegetation index (NDVI).
AlbertE Bondeau, Jörg Kaduk
exaly +3 more sources
SummaryAnnual and seasonal net primary productivity estimates (NPP) of 15 global models across latitudinal zones and biomes are compared. The models simulated NPP for contemporary climate using common, spatially explicit data sets for climate, soil texture, and normalized difference vegetation index (NDVI).
AlbertE Bondeau, Jörg Kaduk
exaly +3 more sources
International Journal of Biomathematics, 2012
Net Primary Productivity (NPP) is an important parameter, which is closely connected with global climate change, the global carbon balance and cycle. The study of climate-vegetation interaction is the basis for research on the responses of terrestrial ecosystem to global change and mainly comprises two important components: climate vegetation ...
Lin, Huilong +4 more
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Net Primary Productivity (NPP) is an important parameter, which is closely connected with global climate change, the global carbon balance and cycle. The study of climate-vegetation interaction is the basis for research on the responses of terrestrial ecosystem to global change and mainly comprises two important components: climate vegetation ...
Lin, Huilong +4 more
openaire +2 more sources
Environmental Monitoring and Assessment, 2020
Fluctuations of the climate variables have increased in the recent years. These fluctuations are different in each climatic region. Net primary production (NPP) indicating the plant growth and carbon stabilization over period of time is influenced by these fluctuations.
Alireza Kamali +2 more
openaire +2 more sources
Fluctuations of the climate variables have increased in the recent years. These fluctuations are different in each climatic region. Net primary production (NPP) indicating the plant growth and carbon stabilization over period of time is influenced by these fluctuations.
Alireza Kamali +2 more
openaire +2 more sources
Satellite-driven modelling of Net Primary Productivity (NPP): Theoretical analysis
Remote Sensing of Environment, 2009Ecological models are central to understanding the global hydrological and carbon cycles, and need data from Earth Observation to function effectively at regional to global scales. Here, we develop and apply an end-to-end analysis that relates the requirements of ecological models to the capabilities of satellite-sensors, starting with radiometric ...
Ana Prieto-Blanco +3 more
openaire +3 more sources
Science of The Total Environment, 2004
Eleven years data set of global net primary production (NPP) and long-term climatic and land use data were used to explore the patterns of inter-annual variability of terrestrial NPP in relation to potential causal factors. Global anomalies in temperature, precipitation and cloud cover were found to significantly contribute in different ways and ...
M A A, Mohamed +5 more
openaire +2 more sources
Eleven years data set of global net primary production (NPP) and long-term climatic and land use data were used to explore the patterns of inter-annual variability of terrestrial NPP in relation to potential causal factors. Global anomalies in temperature, precipitation and cloud cover were found to significantly contribute in different ways and ...
M A A, Mohamed +5 more
openaire +2 more sources
Remote Sensing of Environment, 1999
Substantial research seeks to improve estimates of ecosystem processes and fluxes at a range of scales, notably from the stand scale (
Peter B Reich +2 more
openaire +1 more source
Substantial research seeks to improve estimates of ecosystem processes and fluxes at a range of scales, notably from the stand scale (
Peter B Reich +2 more
openaire +1 more source
Impacts of seasonal climate on net primary productivity (NPP) in Xinjiang, 1981-2000
SPIE Proceedings, 2004This study presented the temporal and spatial variation patterns of the seasonal NPP, temperature and precipitation. The NPP simulated by using the GLO-PEM. A semi-mechanistic model of plant photosynthesis and respiration driven entirely by the satellite observations was combined with climate data in Xinjiang of China over the past 20 years to study ...
Wei Gao +6 more
openaire +1 more source