树木元素富集与树种及土壤类型关系的初步研究  

THE STUDY ON THE RELATIONS OF ELEMENT CONCENTRATION COEFFICIENTS TO DIFFERENT SPECIES OF TREE AND SOIL TYPES

作　　者：陈逸 钱君龙 戴乐美[1,2] 曹密 唐劲松 

机构地区：[1]南京大学分析中心 [2]中国科学院南京地理与湖泊研究所湖泊沉积与环境开放实验室

出　　处：《南京大学学报（自然科学版）》1999年第2期162-168,共7页Journal of Nanjing University（Natural Science）

基　　金：国家自然科学基金

摘　　要：用富集系数研究了相同土壤类型上生长的不同树种，不同土壤类型上生长的同一树种，及不同土壤类型上生长的不同树种对１８种元素的富集情况．结果表明，黄棕壤上生长的悬铃木对元素Ｐ的富集系数最大，而马尾松对元素Ｃｄ的富集系数最大；对于生长在不同土壤类型上的马尾松，则由于土壤本身偏酸性而造成黄棕壤和红壤上生长的马尾松对大部分元素有较高的富集系数；从不同土壤类型上生长的不同树种对元素的富集系数来看，元素Ｐ的差异最大，红壤、黄棕壤上生长的马尾松对元素Ｃｄ的富集系数远远大于其它土壤类型上生长的各树种（本文所讨论范围内），过渡元素及原子序数较大的Ｂａ。The relations of 18 elements concentration coefficients to different species of trees and soil types were studied in this paper. The concentration coefficient refers to the ratio of element content in trees to that in the soils correspondingly.The results indicate that to the trees growing in yellow～brown soil, the concentration coefficient of element P in Plantanus acerifoila Ait . is the largest, as well as that of element Cd in Punus massoniana Lamb. ; to Pinus massoniana Lamb. growing in different types of soil, the concentration coefficents of most elements to yellow～brown soil and red soil are larger than those to other types of soil because of their acidity; to the different species of tree growing in the different types of soil, the concentration coefficient of element P has the most obvious differece, while that of transitive elements has no obvious difference.

关 键 词：富集系数 土壤类型 树种 元素富集 树木 

分 类 号：X173[环境科学与工程—环境科学]