Gross primary production
Sun-induced chlorophyll fluorescence and photochemical reflectance index improve remote-sensing gross primary production estimates under varying nutrient availability in a typical Mediterranean savanna ecosystem
... estimate gross primary production (GPP) of herbaceous stratum in a Mediterranean savanna with different nitrogen (N) and phosphorous (P) availabil- ...
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Identification of a general light use efficiency model for gross primary production
... and the gross primary production) vs. the potential drivers. The such derived relationships form the basis for the subse- quent formulation of the subfunctions modifying the maxi- mum light use ...
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Estimating of gross primary production in an Amazon-Cerrado transitional forest using MODIS and Landsat imagery
... The Gross Primary Production (GPP) is an important variable in the global carbon cycle studies, since it defines the atmospheric carbon extraction rate from terrestrial ...
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Uncertainty analysis of gross primary production partitioned from net ecosystem exchange measurements
... Figure 2 shows the posterior prediction of half-hourly NEE for a 10-day block (1 May to 10 May 2009) for the choice of informative and non-informative prior distributions.. Out of 338 av[r] ...
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Extreme events in gross primary production: a characterization across continents
... Bernhofer, C., Carrara, A., Chevallier, F., De Noblet, N., Friend, A. D., Friedlingstein, P., Grünwald, T., Heinesch, B., Keronen, P., Knohl, A., Krinner, G., Loustau, D., Manca, G., Matteucci, G., Miglietta, F., ...
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Net ecosystem carbon exchange in three contrasting Mediterranean ecosystems – the effect of drought
... The period under analysis (2003–2006) included the hy- drological year of 2004–2005, when a severe drougth af- fected the region. It was the driest episode in the last 140 years. During the hydrological year of ...
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Primary production and respiration of hypersaline microbial mats as a response for high and low CO<sub>2</sub> availability
... dual availability of inorganic carbon from above (water column) and below (oxic–anoxic interface) could be the main explanation of the two peaks of net and gross primary production described in our ...
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Seasonal variations in carbon dioxide exchange in an alpine wetland meadow on the Qinghai-Tibetan Plateau
... Abstract. Alpine wetland meadow could functions as a car- bon sink due to it high soil organic content and low decom- position. However, the magnitude and dynamics of carbon stock in alpine wetland ecosystems are not ...
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Volcano impacts on climate and biogeochemistry in a coupled carbon-climate model
... These averaged responses are somewhat damped compared to some of the individ- ual eruptions’ responses (not shown). This is partly due to the eruptions occurring at dif- ferent times of the year; cooling or precipitation ...
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Rev. bras. meteorol. vol.29 número1
... and gross primary production (GPP) provide important information about the environment, as the critical component of the global carbon cycle is the vegetation, mainly due to photosynthesis, which ...
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Habitat-specific benthic metabolism in a Mediterranean-type intermittent stream
... measure gross primary production (GPP), net primary production (NPP), community respiration (CR) and associated environmental variables in an intermittent Mediterranean-type stream in ...
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Patterns in planktonic metabolism in the Mediterranean Sea
... (gross primary production, com- munity respiration and net community production) was de- termined from changes in oxygen over 24 h in water sam- ples containing communities sampled from the ...
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Kalyne de Lourdes da Costa Martins1 , Thiago Freire Melquíades1, José Luiz Pereira de Rezende2 , Luiz Moreira Coelho Junior1
... For the conditions of the present study, it is concluded that there is no disparity in plant extractivism between Northeast Brazil and Brazil according to the location indicators studied (LQ, LC, Gac, REDC). The LQ of ...
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Testing long-run relationship between agricultural gross domestic product and fruits production: evidence from Pakistan
... hypothesis H 0 : rank Π≤m against H 1 : rank Π = m + 1. The next method we employed in our study is known as ARDL model and initially generated by PESARAN et al. (2001). This model follows OLS estimation procedure for ...
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Assessment of model estimates of land–atmosphere CO<sub>2</sub> exchange across Northern Eurasia
... that model parametrization and process specifications controlling primary production may require further refinement. Other recent work supports our findings and also sug- gests a closer examination of ...
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Perfluorocarbons in the global atmosphere: tetrafluoromethane, hexafluoroethane, and octafluoropropane
... under the auspices of the International (Primary) Aluminium Institute (IAI), IAI esti- mates global Al production PFC emissions using data on smelting-technology-specific Al production a[r] ...
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Primary production in systems subject to natural and anthropogenic eutrophication
... The autotrophic maximum (18 July) is coincident with the diatom bloom in July (P2). The heterotrophic maximum (31 July) is associated with a ciliate peak, together with a diatom maximum, a silicate minimum and a low PAR ...
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Environmental controls on carbon fluxes over three grassland ecosystems in China
... Falge, E., Baldocchi, D., Olson, R., Anthoni, P., Aubinet, M., Bernhofer, C., Burba, G., Ceule- mans, R., Clement, R., Dolmani, H., Granier, A., Gross, P., Gr ¨unwald, T., Hollinger, D., Jensen, N.-O., Katul, G., ...
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Agro-economic performance of the association of beet with green cowpea in different amounts of hairy woodrose
... food production per unit of area in this cultivation system because, when AEI higher than 1 is obtained in the intercropping, the growth and production of the involved crops are favored, indicating better ...
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Effects of changes in flows of funds between Government and households.A SAM approach to Portugal
... the gross capital formation of local and central ...the production value/total costs of the economy and aggregate demand/supply, although their values were not ...
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