气候因素对木材细胞结构的影响

Influence of Climate Factors on Wood Cell Structure

综述针叶材年轮内管胞个数、尺寸、壁厚和树脂道个数及阔叶材年轮内导管个数和尺寸等木材细胞结构对温度和降雨的响应。影响木材细胞结构的因素除气候外,还有非气候因素,在研究木材细胞结构对气候变化响应时,应尽可能地考虑到后者的影响。本文也综述一些非气候因素,如地形、土壤、海拔、大气污染、病虫害、种植密度、施肥和灌溉等对木材细胞结构的影响,以期充分认识影响木材细胞结构的因素,为木材细胞结构对气候变化响应的研究和林业应对气候变化提供参考。

Climate change is a global political,economic and social hot topic,and coping with climate change is an important mission for Chinese forestry.A clear understanding of the factors that influence wood cell structure is indispensable to the scientific support for Chinese forestry and the research of wood cell structure on response to climate change.In this paper the studies of wood cell structures,such as intra-annual tracheid numbers,dimensions and wall thickness and numbers of resin ducts in softwoods,and vessel numbers and dimensions in hardwoods,on responses to temperature and precipitation were reviewed.In the meantime,some non-climate influences on wood cell structure,such as terrain,soil,altitude,latitude,air pollution,insects,disease,planting density,fertilization and irrigation were discussed in the paper.