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本文通过对水曲柳、黄波罗、籽椴、红松、云杉、落叶松苗木造林后缓苗及翌年高生长的观测、分析,研究了不同树种、不同等级苗木造林后的缓苗及苗高生长规律。结果表明,不同树种、不同等级苗木造林后,缓苗速度存在较大差异,且缓苗速度受小气候因子(特别是≥5℃活动积温)影响显著。不同树种苗木在造林地上的年高生长开始期、速生期和结束期差别较大,水曲柳、落叶松速生期较长,年生长量较大。在生长期内,温度、降水及日照对苗木生长影响显著。根据苗木缓苗及高生长特点制订造林及抚育计划,对营造速生丰产林十分重要。
In this paper, the observation and analysis of Hailuofu, Huangboluo, Tilia amurensis, Korean pine, spruce, larch seedlings afforestation Huanmiao and the following year’s high growth observed, studied the seedlings of different tree species, Seedling height growth law. The results showed that there was a big difference in the speed of seedling emergence after afforestation of different tree species and different grades of seedlings, and the speed of slowing seedling was significantly affected by the microclimate factors (especially the accumulated temperature of ≥5 ℃). Different species of seedlings in the afforestation of the beginning of the growing height, fast-growing period and the end of a larger difference, Fraxinus mandshurica, Larix velutina fast-growing, larger annual growth. In the growth period, the temperature, precipitation and sunshine on seedling growth significantly. According to seedlings Huanmiao and high growth characteristics of afforestation and tending plan, to create fast growing high yield forest is very important.