地理学报 ›› 1986, Vol. 41 ›› Issue (2): 123-131.doi: 10.11821/xb198602003

• 论文 • 上一篇    下一篇

土壤-植物生态系统中植物吸收氟的研究

李日邦, 郑达贤, 王丽珍, 谭见安   

  1. 中国科学院地理研究所
  • 出版日期:1986-04-15 发布日期:1986-04-15

A STUDY OF FLUORIDE ABSORPTION BY PLANT IN SOIL-PLANT ECOLOGICAL SYSTEM

Li Ribang, Zheng Daxian, Wang Lizhen, Tan Jianan   

  1. Institute of Geography, Academia Sinica
  • Online:1986-04-15 Published:1986-04-15

摘要: 氟是自然界非常活泼的一种化学元素,也是生命必需元素之一。氟在自然坏境中分布异常会引起不同的健康问题,地方性氟中毒就是在富氟的自然环境中人体摄取了过量的氟引起的,这是一种严重危害人体健康的地方病。

关键词: 含氟量, 土壤-植物, 渍水, 旱作栽培, 生物吸收系数, 植物吸收, 土壤总氟, 栽培方式, 栽培条件, 生态系统

Abstract: In order to study the root, leaf, stem and seed of barnyard grass absorbing fluoride from soil, a cultivated experiment of barnyard grass was carried on in a net room using 11 natural soils. After determining the fluoride content in the root, leaf, stem, seed of barnyard grass, the order of fluride content in them from high to low is root>leaf > stem>seed. The result of statistics indicated that there is a positive correlation betweenfluoride content in root of branyard grass and with that in soil, but there is no correlation of fluoride content in leaf, stem, seed with that in soil. This indicates that the fluoride content in soil has no obvious affect on them. The biological absorption coefficients of fluoride by these four parts of barnyard grass is blong to O.n grade, and fluoride is a middle-absorbing element by barnyard grass. It also shows that fluoride can not be accumulated in the barnvard grass. and still more can not be accumulated in its seed.