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几年来,结合教学活动对我省落叶松人工林的生长规律进行了研究工作。在此基础上对落叶松人工林的主伐年龄提出如下看法。供参考。一、黑龙江东部地区落叶松人工林生长特点我省人工栽植的落叶松大多数是兴安落叶松,其次是长白落叶松.木质坚硬,纹理通直,力学强度高,耐腐朽.可作枕木、矿柱、电杆、桥梁、造船和建筑等用材.树皮含单宁量高(8～16%),可提炼栲胶、松脂,可提制松香和松节油.易栽易管,生长较快,培育周期短,是我省主要造林树种之一。1.我省东部落叶松人工林的生长特点
In recent years, combined with teaching activities on the law of growth of Larix gmelinii plantation research work. On this basis, the main cutting age of larch plantation proposed the following views. for reference. First, the growth characteristics of Larix gmelinii plantation in the eastern part of Heilongjiang Province Most of the larch plantations in our province are Larix gmelinii, followed by Larix olgensis, with hard wood, straight texture, high mechanical strength and decay resistance. Column, electric pole, bridge, shipbuilding and construction etc. The bark contains high amount of tannin (8-16%), which can extract gum and rosin, can be made rosin and turpentine.It is easy to plant and manage, grow fast, Short incubation period, is one of the main afforestation species in our province. 1. Growth characteristics of larch plantations in the eastern part of our province