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Will Global Warming Improve Crop Production?

Date:
September 19, 2002
Source:
American Society Of Agronomy
Summary:
Scientists from Agriculture and Agri-Food Canada predict crops will be at a greater risk of winter damage in the future even though the climate will be warmer. Perennial forage crops are grown on more than 40% of the cultivated land in Eastern Canada and other regions of North America, where they constitute the backbone of the livestock industry.

Scientists from Agriculture and Agri-Food Canada predict crops will be at a greater risk of winter damage in the future even though the climate will be warmer. Perennial forage crops are grown on more than 40% of the cultivated land in Eastern Canada and other regions of North America, where they constitute the backbone of the livestock industry. The study of the impact of this significant warming trend is published in the September-October issue of Agronomy Journal, published by the American Society of Agronomy. The loss of snow cover due to warmer winter conditions will increase exposure of plants to freezing temperatures. The authors also conclude that the occurrence of above-freezing temperatures and loss of cold hardiness will increase with climate warming. Forage crops are also likely to enter the winter in a lower state of cold hardiness due to warmer fall temperatures. Winter temperatures are expected to increase by 2 to 6 degrees C over the next 50 years in Eastern Canada; however, survival of perennial crops over the winter months requires the right climatic conditions. Sub-freezing temperature, loss of cold hardiness due to warm periods, ice encasement, and soil heaving can result in frequent crop losses.


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The above story is based on materials provided by American Society Of Agronomy. Note: Materials may be edited for content and length.


Cite This Page:

American Society Of Agronomy. "Will Global Warming Improve Crop Production?." ScienceDaily. ScienceDaily, 19 September 2002. <www.sciencedaily.com/releases/2002/09/020919065913.htm>.
American Society Of Agronomy. (2002, September 19). Will Global Warming Improve Crop Production?. ScienceDaily. Retrieved April 23, 2014 from www.sciencedaily.com/releases/2002/09/020919065913.htm
American Society Of Agronomy. "Will Global Warming Improve Crop Production?." ScienceDaily. www.sciencedaily.com/releases/2002/09/020919065913.htm (accessed April 23, 2014).

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