Atmosphere and agriculture in the new millennium.
Effects of changing climate (CO(2), O(3), aerosols, UV-B radiation, temperature and precipitation) on crops are predominantly based on univariate studies. Limited bivariate studies suggest rising CO(2) levels would be beneficial to crops but may be offset by adverse O(3) effects. Elevated UV-B and ambient crop yields are difficult to project due also to limited research. Climate warming concerns, using average daily temperatures may be less important than the effects of rising nocturnal temperatures on crop growth. Traditional approaches of examining air pollutant-induced visible foliar injury or the effects of single air pollutants on crop productivity need to be redirected to the analysis of integrated holistic systems. In that context, present and future agriculture in India and the USA are compared.
Krupa
Sagar
S
Department of Plant Pathology, 495 Borlaug Hall, University of Minnesota, 1991 Upper Buford Circle, St. Paul, MN 55108, USA. krupa001@umn.edu
D000397:Air Pollution; D002245:Carbon Dioxide; D002980:Climate; D018556:Crops, Agricultural; D017753:Ecosystem; D005502:Food; D007194:India; D010126:Ozone / Q000009:adverse effects; D011156:Population Density; D011891:Rain; D013696:Temperature; D014466:Ultraviolet Rays; D014481:United States
D002245:Carbon Dioxide; D010126:Ozone