The Finnish Meteorological Institute implemented the chlorophyll fluorescence model
into a global vegetation model in collaboration with researchers from the Max Planck Institute.
The Finnish Meteorological Institute implemented the chlorophyll fluorescence model
into a global vegetation model in collaboration with researchers from the Max Planck Institute.
Complex as they may be, the activities and effects of consumers should be incorporated
into global vegetation models in order to accurately predict the likely consequences of global change.
Not exact matches
By process of elimination, there is net flow of CO2
into vegetation / land (with emissions from them being overall negative aside from fuel combustion), which is unsurprising in contexts ranging from a multitude of studies on co2science.org to how satellite - measured
global net terrestrial primary production increased by several percent per decade during the period of
global warming (Nemani et al. 2003, for instance).
On this matter Mueller concludes» (Professor Martin) Claussen has considered the likelihood of a greening of the Sahara due to
global warming and concluded that an expansion of
vegetation into today's Sahara is possible as a consequence of CO2 emissions.»
The data were used to calculate
global, monthly inundated fractions of equal - area grid cells, about 25 km2, taking
into account the contribution of
vegetation to the passive microwave signal.
Our results illustrate the utility of
global scale analyses that can aide in identifying potential ecoclimate teleconnections affected by
vegetation change at regional scales, while simultaneously providing insight
into the mechanisms of the associated ecological responses in affected regions.
Taking
into account CO2 - induced changes in
vegetation,
global mean runoff under a 2 * CO2 climate has been simulated to increase by approximately 5 % as a result of reduced evapotranspiration due to CO2enrichment alone («physiological forcing»)(Betts et al., 2007; Leipprand and Gerten, 2006).
Indeed, the long lifetime of fossil fuel carbon in the climate system and persistence of the ocean warming ensure that «slow» feedbacks, such as ice sheet disintegration, changes of the
global vegetation distribution, melting of permafrost, and possible release of methane from methane hydrates on continental shelves, would also have time to come
into play.
There are two primary externalities that result from our emissions of carbon dioxide
into the atmosphere — 1) an enhancement of the greenhouse effect, which results in an alteration of the energy flow in the earth's climate and a general tendency to warm the
global average surface temperature, and 2) an enhancement of the rate of photosynthesis in plants and a general tendency to result in more efficient growth and an overall healthier condition of
vegetation (including crops).
Net CO2 flux combining effects of
vegetation and fires over land (in blue) and net fluxes of CH4 (in purple) and N2O (in green) associated with different regions of the globe and presented as percentages to the net
global flux
into the atmosphere shown in the preceding figure.