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:
CLIMATE CHANGE AND CROPS
影响因子:
--
通讯作者:
Reid, David M.
Reid, David M.
中科院分区:
其他
文献类型:
--
作者:
Qaderi, Mirwais M.;Reid, David M.

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最近的研究表明,由于人类活动,包括燃烧化石燃料和砍伐森林,全球大气二氧化碳(二氧化碳)显著增加,目前的水平(383ppm)已远远超过6500年来的自然范围(180ppm-300ppm)(政府间气候变化专门委员会,2007年)。大气二氧化碳浓度的上升导致全球平均地表温度在20世纪上升了0.6±0.2摄氏度,而模型估计,到21世纪末,地表气温将比1990年升高1.1-2.9摄氏度“低情景”或2.4-6.4摄氏度“高情景”(气专委,2007年)。一个新的全球气候模型预测,在未来十年,地表气温可能会超过现有的记录(Smith等人。2007)。全球变暖可能伴随着世界各地降水模式的变化(气专委,2007)。
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).