摘要
云南松是分布于我国西南亚热带山地的重要树种,具有喜光、耐干旱瘠薄、适应性强、木材用途广等特点,在当地林业生产和生态经济建设中占有重要地位。但是,云南松林分中出现弯曲、扭曲等不良个体的比例逐渐增加,优良基因资源逐渐减少。文章就茎干扭曲、弯曲植株的表现,扭曲、弯曲发生规律,对植株生长和木材的影响、成因等方面的研究现状进行阐述。提出加强对茎干扭曲、弯曲特性的基础研究,结合营林措施减少林分衰退,并探讨扭曲、弯曲材利用等研究方向。
Pinus yunnanensis Franch. is a subtropical pine endemic to Southwest China with characteris- tics of light- loving, drought- resistant, poor- site tolerant, great adaptability and extensive values of timber, etc. It plays a crucial role in regional economic development and ecological restoration. At pres- ent the crooked and twisted individuals were appeared in P. yunnanensis forest, and the excellent re- sources are reducing. The research progresses reviewed the status of crooked and twisted stem of P. yun- nanensis in aspects of crooked and twisted behavior, occurrence rule, effects on tree growth and caused factors etc. Therefore, the paper conducted fundamental research, and carried out prospects on utilization of crooked and twisted tree on the base of forest culture and management.
出处
《林业调查规划》
2016年第6期19-23,共5页
Forest Inventory and Planning
基金
国家自然科学基金项目(31360189)
关键词
云南松
茎干弯曲、扭曲特性
木材纹理
遗传改良
营林措施
Pinus yunnanensis Franch.
stem crook and twist characteristics
wooden grain
geneticimprovement
forest culture and management
