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在1969年一次关于树根生长的座谈讨论会上宣读了下述声明:“由于植物的根不易直接为人们所利用以及难于在自然状态下进行研究,其调查研究的广度低于枝条或生殖器官。”由于树木的根系很大、很重.分布既深且广,以及多年生的习性和缠结密集的位置,致使研究工作特别困难。早在1700年,曾作过根系的挖掘,对其种类、构造、发生、简单机能与季节影响、土壤状况与环境因素等进行了调查和记载。有关这方面的著作已由数篇论文摘要发表。
The following statement was presented at a symposium on tree root growth in 1969: “Because the roots of plants are not easily accessible to people directly and are difficult to study in their natural state, the breadth of their investigation is less than that of branches or reproductive organs ”Because of the large and heavy roots of trees, the distribution is both deep and wide, and perennial habits and tangled locations make research particularly difficult. As early as 1700, the excavations of the root system were made and the types, structures, occurrences, simple functions and seasons, soil conditions and environmental factors were investigated and documented. Work in this area has been published in several abstracts.