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1982年3月底,我们将国外引进的短叶松种子进行了育苗试验,4月9日播种,11月11日经最后一次调查,苗木平均高29.24厘米,最大苗高52厘米;平均地径4.7毫米,最大地径8.7毫米,苗木生长旺盛,针叶青翠粗长。试验地位于滨湖丘陵亚热带季风温暖湿润区,夏季高温,春季多雨,寒潮频繁,雨季明显,秋季少雨,常有秋旱现象,冬季寒冷、干燥。年平均温度为16.3—17.3℃,最冷(1月)平均4.4℃,最热(7月)平均29.2℃,无霜期274天,
The end of March 1982, we introduced the introduction of foreign pine seed trials, April 9 sowing, the last survey on November 11, the average height of 29.24 cm seedlings, the maximum height of 52 cm; average diameter of 4.7 Mm, the largest diameter of 8.7 mm, vigorous growth of seedlings, coniferous green coarse. The experimental site is located in the humid and humid subtropical monsoon region in the lake and lake hills. The temperature is high in summer, rainy in spring, frequent in cold wave, obvious in rainy season, less in autumn and often fall in autumn, cold in winter and dry in winter. The annual average temperature is 16.3-17.3 ℃, the coldest (January) average 4.4 ℃, the hottest (July) average 29.2 ℃, frost-free period 274 days,