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Climate Change and Winter Survival of Perennial Forage Crops in Eastern Canada

Gilles Bélanger*,a, Philippe Rochettea, Yves Castonguaya, Andrew Bootsmab, Danielle Mongraina and Daniel A. J. Ryanc

a Agric. and Agri-Food Can., Soils and Crops Res. and Dev. Cent., 2560 Hochelaga Blvd., Sainte-Foy, QC, Canada G1V 2J3
b Agric. and Agri-Food Can., Eastern Cereal and Oilseed Res. Cent., K.W. Neatby Bldg., Room 4129B, 960 Carling Ave., Ottawa, ON, Canada K1A 0C6
c Agric. and Agri-Food Can., Atlantic Food and Hortic. Res. Cent., 32 Main Street, Kentville, NS, Canada B4N 1J5



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Fig. 1. Distribution of 69 weather stations used for the study on the impact of climate change on the winter survival of perennial forage crops in eastern Canada. Grid points (+) of the Canadian Global Coupled General Circulation Model are also presented.

 


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Fig. 2. Fall indices in five forage-producing regions of eastern Canada for current climate and future climate scenarios. Lower and upper boundaries of box indicate 25th and 75th percentiles, respectively; plain and dashed lines within box indicate median and mean, respectively; whiskers below and above box indicate the 10th and the 90th percentiles, respectively; and dots below and above whiskers indicate the 5th and 95th percentiles, respectively. Indices are described in Table 1. CDD5, cold degree-days below 5°C; G, Guelph; CN, Continental North; SQ, South Quebec; LSLG, Lower St. Lawrence–Gaspé Peninsula; M, Moncton.

 


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Fig. 3. Winter indices in five forage-producing areas of eastern Canada for current climate and future climate scenarios. Lower and upper boundaries of box indicate 25th and 75th percentiles, respectively; plain and dashed lines within box indicate median and mean, respectively; whiskers below and above box indicate the 10th and the 90th percentiles, respectively; and dots below and above whiskers indicate the 5th and 95th percentiles, respectively. Indices are described in Table 1. DD0, degree-days above 0°C; G, Guelph; CN, Continental North; SQ, South Quebec; LSLG, Lower St. Lawrence–Gaspé Peninsula; M, Moncton.

 





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