采脂对材质的影响曾被充分研究,而采脂对树木种子产量和质量的影响却未曾被研究过。在苏联上塔夫金林场,在其他条件相同的情况下,种子产量却相差悬殊。为了探索发生这种情况的原因,作者进行了一系列研究。作者在Ⅵ龄级、Ⅲ地位级的沙土越桔松林内伐倒了一些经过采脂及未经采脂的松树进行分析研究。经采脂的松树的采脂年限各为3,5,7,9年。从每一个样品中取下50个健壮的标准球果进行分析。 The effect of grease on materials has been well studied, and the effect of grease on the yield and quality of tree seeds has never been studied. In the Soviet Union, Ta Fu Jin Lin field, in other conditions are the same circumstances, the seed yield is quite different. In order to explore the reasons for this situation, the author conducted a series of studies. The author in the Ⅵ age class, Ⅲ grade level in the soil of bilberry pine cut down some of the pasting and non-fat-bearing pine for analysis. The fat-picking of pine trees for the life of 3, 5, 7, 9 years. Fifty robust standard cones were removed from each sample for analysis.