Crop Responses to Elevated Carbon Dioxide and Temperature
Crop Responses to Elevated Carbon Dioxide and Temperature
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DOI:
10.1007/978-3-540-88246-6_1
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发表时间:
2009-01-01
期刊:
影响因子:
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通讯作者:
Reid, David M.
中科院分区:
文献类型:
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作者:
Qaderi, Mirwais M.;Reid, David M.
Recent studies have shown that global atmospheric carbon dioxide (CO2) has increased markedly due to human activities, including burning of fossil fuels and deforestation, and its current level (383 ppm) has far exceeded the natural range (180–300 ppm) seen over 6500 centuries (IPCC 2007). Rising of atmospheric CO2has caused the globally averaged surface temperatures to increase by 0.6 ± 0.2°C over the 20th century, while surface air temperature is estimated by models to warm 1.1–2.9°C “low scenario” or 2.4–6.4°C “high scenario” by the end of the 21st century relative to 1990 (IPCC 2007). A new global climate model predicts that in the coming decade, the surface air temperature is likely to exceed existing records (Smith et al. 2007). Global warming can be accompanied by shifts in precipitation patterns around the world (IPCC 2007).