论文部分内容阅读
落叶松播种时间一般是在每年春季的四、五月份,在长白山林区,当年春播的落叶松大部分顶梢木质化不好,苗高地径很难达到出圃标准,而林区每年的更新造林面积很大,需用苗木较多,势必把一些不规格苗木出圃造林,这样就影响了更新造林的成活率。为解决这一难题,我们于一九八一年秋和一九八二年秋在白石山苗圃进行了落叶松秋播试验。现将试验情况小结如下: 一、试验地概况和试验方法白石山苗圃位于白石山局址南二公里处,即北纬43°26′,东经127°35′,海拔高400米,
Larix sowing time is generally in spring each year in April and May in Changbai Mountain forest area, when most of the spring sowing most of the top-end lignification is not good, the height of the seedling height is difficult to reach the standard, and the annual forest reforestation Large area, the need to use more nursery stock, is bound to some non-standard nursery afforestation afforestation, thus affecting the survival rate of reforestation. In order to solve this problem, we conducted autumn larch trials in Baishishan nursery in the autumn of 1981 and the autumn of 1982. Now the test conditions are summarized as follows: First, the general situation and test methods Baishishan nursery is located two kilometers south of the Whitehead Mountain Station, that latitude 43 ° 26 ’, longitude 127 ° 35’, 400 meters above sea level,