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前言根系是林木吸收养分和水分的主要器官,也是林木生物量的组成部分。林木根系的体积只有地上部分的1/4—1/10,它以庞大的数量分布于土壤的各个层次,对于树木的生长和发育具有重要的影响,是森林生态系统中物质循环的重要环节。因此,研究林木的根系早就被人们所重视。但由于根系处在地下,给研究工作带来很多困难。即使这样,国内外在这一方面,特别是根系的形态、分布、生长发育状况以及生物置等开展
Foreword Roots are the main organs for nutrient uptake and moisture of forest trees and are also part of forest biomass. The volume of forest root system is only 1 / 4-1 / 10 of the aerial part, which is distributed in large quantities in all levels of soil and has an important influence on the growth and development of trees. It is an important part of material circulation in forest ecosystem. Therefore, studying the roots of trees has long been valued. However, because the root system is underground, it has brought many difficulties to the research. Even so, at home and abroad in this regard, especially the root shape, distribution, growth and development and biological home to carry out