摘要
心材对树木生长发育、生理生态功能及木材价值均有重要影响。文中从心材形成的起始时间、发生季节及径向与轴向变异等方面,梳理近30年国内外关于心材形成时空变化的研究成果,总结出心材形成的起始时间及判断依据、秋冬季是心材形成旺盛期的季节规律、心材径向形成与树木径向生长的线性与非线性关系、心材宽度方位差异的原理以及阔叶树种和针叶树种的心材径向形成速率与稳定边材宽度的差异规律,提出解释2种心材轴向变异模式的新理论,并展望未来研究的重点方向,以期为后续心材形成、树木生理生态功能及木材定向培育等方面的研究提供参考和启发。
Heartwood has a significant impact on tree growth and development,physiological and ecological functions of trees,and wood value.This paper reviews the national and international researches on the temporal and spatial patterns of heartwood formation in the past 30 years from the aspects of the initial time,season,and radial and axial variation of heartwood formation,summarizes the initial time of heartwood formation and its judgment basis,the seasonal pattern that autumn and winter are the peak period of heartwood formation,the linear and nonlinear relationship between radial formation of heartwood and tree's radial growth,the principle of directional differences in heartwood width,and the difference between heartwood's radial formation rate and sapwood's stable width of broad-leaved and coniferous tree species,and puts forward a new theory to explain two axial variation patterns of heartwood.The prospects for future research are proposed,in order to provide references and enlightenment for subsequent studies of heartwood formation,physiological and ecological functions of trees,and orientation cultivation of wood.
作者
孙余丹
崔之益
Sun Yudan;Cui Zhiyi(Lingnan Normal University,Zhanjiang 524048,Guangdong,China;Research Institute of Tropical Forestry,Chinese Academy of Forestry,Guangzhou 510520,China)
出处
《世界林业研究》
CSCD
北大核心
2023年第4期54-58,共5页
World Forestry Research
基金
国家自然科学基金“基于树干非结构性碳径向转运探究干旱促进降香黄檀心材形成机制”(32001307)
广东省自然科学基金“适度干旱促进降香黄檀心材形成的生理机制研究”(2021A1515011104)。
关键词
心材
边材
年轮
阔叶树
针叶树
heartwood
sapwood
annual ring
broad-leaved tree
conifer tree
