浅析红松人工果材林生长和结实的外部影响因素

Analysis on External Influencing Factors upon Growth and Fruiting of Pinus koraiensis Plantation for Seed and Timber Production Purposes

国家天然林保护工程的全面实施大大限制了红松林的木材采伐量,使林业部门及人员不能再单纯追求木材收获所带来的利益,而趋向于追求木材和种籽的双重效益。充分了解红松果材林生长和结实的影响因素是实现种材兼收的重要前提。本文对红松生长和结实的各种外部影响因素进行了归纳综述,分析了地理位置、立地条件、主要气象因素、自然灾害以及人为经营管理等各种外部影响因素与红松生长和结实的因果关系,对正确拟定经营方案,实现红松果、材丰产,提高林业部门的经济收入以及满足社会需求具有一定的理论和现实指导意义。

The felling quota of Pinus koraiensis forests and plantations has been greatly restrained ever since the overall undertaking the national forestry program of conserving the natural forests in China. The forestry departments and tree farmers are forced to pursue the benefits of both timber production and seed yielding from P. koraiensis plantations instead of the pure timber production. Thorough understanding of the factors that influence upon the growth and fruiting of P. koraiensis plantations is the important premise for integrated timber and seed harvests. The geological position, site conditions, major meteorological factors, natural disasters, artificial tending and management measures and other related external influencing factors were classified and summarized, and the correlations among these factors and the timber growth and seed yielding were analyzed. The results might be of both theoretical and practical guiding sig- nificance in making management scheme for P. koraiensis plantation, coordinating bumper harvest for both timber and seed, promoting income and revenue of forestry divisions and meeting diverse demands of the societies.