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本刊今年第1期曾发表《二十年生落叶松中龄林优势木分布规律调查研究》一文。笔者根据此次调查所得材料,就优势木的生长与林地条件、林木个体生物学特性、林分密度的变化的关系,及不同年龄阶段林分密度对各生长因子的影响作了分析,简报如下:一、在落叶松适当范围内,林地条件变化,虽然对优势木株数影响不大,但对优势木生长优劣会产生重大影响,而成为优势木生长优劣的主导因素。
The first issue of this issue has published a “twenty year-old larch middle-aged forest distribution of dominant wood law” one article. Based on the materials obtained from this survey, the author analyzed the relationship between the growth of dominant woods and forestland conditions, the individual biological characteristics of forest trees, the changes in stand density, and the effect of stand density on growth factors in different age groups. : First, within the proper range of larch, although the change of woodland conditions has little effect on the number of dominant wood, it will have a significant impact on the growth of superior wood, and become the dominant factor of superior wood growth.