---

作 者 ：朱育新, 钱君龙, 黄景苏, 柯善哲

期 刊 ：植物生态学报 1995年 19卷 3期 页码：261-269

关键词：南京；树木—土壤系统；元素富集系数；

Keywords:Nanjing, Tree-soil system, Accumulation ratio of element (T/S),

摘 要 ：本文用树木元素富集系数(T／S)来研究南京栖霞山铅锌多金属矿区树木—土壤系统中元素的富集特性。结果表明，树木对土壤中K、P二个元素的吸收基本与树种和开矿活动关系不大。黑松对Cr、Al，马尾松对Mn、Pb、Co、Ni、枫杨对P，刺槐对Mg、Na，Ti，栎对Zn、Ca、K、Fe、Sr、Ba、V，槐树对Cu均有最大的富集系数。黑松树龄对Co、K、Zn含量和Ca的富集系数有一定的影响。另外，Co—Ni、Sr—Ba的T／S曲线分别呈正相关，表现出这两组元素各自的地球化学共轭性。

Abstract:The accumulation ratio of element in trees, that is the ratio of the element content in trees to that in the soils (T/S), was used to analyze the accumulation characteristics of elements in the tree-soil system in mining area of Xixia mountain, Nanjing. The results showed that the content of K, Ca and P had little relations with the tree species, or human mining activities. Different tree species had the largest T/S for different elements. For example Pinus thunbergli for Cr and Alp P. massoniana for Mn,Pb, Co and Ni; Pterocarya stenoptera for P; Robinia pseudoacacia for Cu. The age of Pinus thunbergli had some influence on the content of Co, K and Zn, and the T/S of Ca. There was a positive correlation between the T/S curves of Co and Ni, and of Sr and Ba; indicating a geochemical conjugation of these two pairs of elements.

---