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Fig. 1. Monthly temperature and precipitation record from January 1999 through May 2004 as recorded at an automated weather station adjacent to the plot areas. The sinusoidal pattern at the bottom of the figures depict the long-term (8-yr) mean monthly temperatures and total liquid precipitation at the field site. Monthly departures from the long-term values are depicted at the top of each figure. Since precipitation gauge was not heated, the values depicted during periods of freezing weather may be less than actual precipitation.
