Face Experiments on Grasslands

Face Experiments on Grasslands.
In atmospheric CO2 enrichment experiments, nearly all plants almost always exhibit increases in photosynthetic rates and biomass production when environmental conditions are optimal for growth. Even when conditions are less than favorable (low soil moisture, poor soil fertility, high soil salinity, high air temperature), many plants still exhibit a CO2-induced growth enhancement; and that relative or percentage enhancement is sometimes (more often than not, in fact) greater than what it is under ideal growing conditions.
In atmospheric CO2 enrichment experiments, nearly all plants almost always exhibit increases in photosynthetic rates and biomass production when environmental conditions are optimal for growth. Even when conditions are less than favorable (low soil moisture, poor soil fertility, high soil salinity, high air temperature), many plants still exhibit a CO2-induced growth enhancement; and that relative or percentage enhancement is sometimes (more often than not, in fact) greater than what it is under ideal growing conditions.
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FACE EXPERIMENTS AND GRASSLAND SPECIES.