Rising atmospheric CO/sub 2/ and crop productivity
The CO/sub 2/ level in the atmosphere is rising at the rate of 1.5 to 2 ppM per year. Although climatologists look to the rising level of atmospheric CO/sub 2/ as a problem of climate change, the effects on climate are uncertain. Biological effects are much more certain, predictable, and measurable. It can be assumed that CO/sub 2/ alters the heat balance of the earth and acts as a one-way screen, causing a ''greenhouse effect''. Both the climatic effects and the biological effects of rising atmospheric CO/sub 2/ are reviewed in depth. The most profound effect on crop productivity involves increased water-use efficiency and a reduction in the water requirement. Elevated levels of atmospheric CO/sub 2/ appear to have a remarkable positive effect on increasing the resilience of crops under environmental stresses.
- Research Organization:
- Michigan State Univ., East Lansing
- OSTI ID:
- 6130151
- Report Number(s):
- CONF-8208184-
- Journal Information:
- HortScience; (United States), Journal Name: HortScience; (United States) Vol. 18:5; ISSN HJHSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOLOGICAL EFFECTS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CLIMATES
CROPS
DOCUMENT TYPES
ECOLOGICAL CONCENTRATION
ENVIRONMENTAL EFFECTS
GREENHOUSE EFFECT
OXIDES
OXYGEN COMPOUNDS
PRODUCTIVITY
REVIEWS
WATER REQUIREMENTS