【摘要】 本文根据对天山云杉人工林的调查资料,初步分析研究了人工林在幼、壮龄生长发育阶段林木的生长过程和规律、林分的径阶结构和林木的高径比,并应用数理统计的方法,选拟了林木在该生长阶段胸径、树高和材积与林龄相关,胸径与高径比相关的回归方程。旨在为设计和拟定天山云杉人工幼林的经营措施提供依据。更多还原

【Abstract】 The present paper deals with a study of the growth process diameter structure and helght-diameter ratio of young trees of spruce(picea Schenkiana var. tianshanica). The result was based on investigation in mannade young trees. Themethod of mathematical regression was used for developing the mathematical model so as to provide some basis for forest management.更多还原