Interactive Effects of C02 and Water Stress on the Growth of Woody Plant Species

By | May 9, 2014

 

c02_water_stress

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It is widely acknowledged that as the CO2 content of the air continues to rise, nearly all of earth’s plants will exhibit increases in photosynthesis and biomass production; but climate alarmists periodically proclaim that future water stress will negate these benefits of atmospheric CO2 enrichment. In reviewing much of the pertinent scientific literature of the ten-year period 1983-1994, however, Idso and Idso (1994) determined that water stress will generally not negate the CO2-induced stimulation of plant growth. In fact, they found that the CO2-induced percentage increase in plant productivity was nearly always greater under water-stressed conditions than it.