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彭泽县马路口苗圃地处东经116.5度,北纬29.8度之间,在江西北端,与安徽省毗邻。年最低气温零下7—10℃,每年初霜期大约都在11月中下旬,日夜温差悬殊。由于圃地坐落在山区盆地,受冷气团下压的影响,往往遭受初霜危害。以1988年为例,初霜前几天气温正常,杉苗安然猛长,突然气温下降,一夜重霜,苗圃的最低田块,30—
Pengze County Road junctions nursery is located 116.5 degrees east longitude, 29.8 degrees north latitude, at the northern tip of Jiangxi, and adjacent to Anhui Province. The lowest annual temperature of minus 7-10 ℃, the annual frost period is about mid-late November, the temperature difference between day and night disproportionate. Due to the fact that the nursery is located in a mountainous basin, it is often affected by the initial frost because of the pressure exerted by the cold air mass. In 1988, for example, the first few days before the initial normal temperature frost, Fuming Miao Meng long, suddenly the temperature dropped overnight heavy cream, nursery lowest plots, 30-