Mathematics – Logic
Scientific paper
May 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999georl..26.1457b&link_type=abstract
Geophysical Research Letters, Volume 26, Issue 10, p. 1457-1460
Mathematics
Logic
14
Atmospheric Composition And Structure: Biosphere/Atmosphere Interactions, Global Change: Climate Dynamics, Hydrology: Plant Ecology, Meteorology And Atmospheric Dynamics: Land/Atmosphere Interactions
Scientific paper
Biotic influences on climate may be important for sustaining life on Earth. Terrestrial vegetation may contribute by affecting surface-atmosphere fluxes of energy and moisture; the importance of this is examined here by performing two climate simulations with and without vegetation, and using each of the resulting climates as input to a vegetation model. Results suggest that contemporary vegetation increases continental precipitation by 15% while generally reducing temperature extremes, and in a simulation neglecting these effects, the boreal, Amazonian and South-East Asian forests cannot become established. The climatological influences of vegetation increase simulated net primary productivity on land by 28% and allow 69% more vegetation biomass to be sustained, implying that bio-geophysical feedbacks are crucial for maintaining present-day patterns of vegetation.
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