铜、镍、铅、锌4种重金属对水田土壤藻类的综合效应  

EFFECT OF COPPER,NICKEL,LEAD AND ZINC ON THE COMPOSITION OF ALGAL COMMUNITY IN PADDY SOIL

作　　者：沈德中[1] 王宏康[1] 罗厚枚 刘英[1] 

机构地区：[1]北京农业大学环境科学系

出　　处：《中国环境科学》1994年第4期277-282,共6页China Environmental Science

摘　　要：为确定污水，污泥的农田施用标准，使用正交试验表Ｌ９（３＾４）研究了４种重金属铜，镍，铅和锌在低，中、高３种浓度下对土壤藻类的数量和种类的影响。混合重金属使土壤藻类的种群结构发生改变，使蓝藻数量减少，硅藻数数量或减少或增加，视条件而定，裸藻成为优势种，在土壤－藻类体系中重金属临界值铜５０ｍｇ／ｋｇ，镍为５０ｍｇ／ｋｇ，铅为１５０ｍｇ／ｋｇ，锌为３００ｍｇ／ｋｇ。Orthogonal test table L9(34)is used for studying the effect of heavy metals-copper, nickel, lead and zinc at three different levels on the composition of algae in paddy soil.The mixed heavy metals affect the structure of soil algal communitiesi e.g.the number of blue algae (cyanobacteria) decreases,and the number of diatom increases or decreases. The genus Eugleo becomes the dominant species.The critical levels of the heavy metalsare discussed.

关 键 词：铜 镍 铅 锌 土壤 藻类 水田 综合效应 

分 类 号：X530.323[环境科学与工程—环境工程]