摘要
介绍了硅藻种类组成对水环境状态的指示作用及硅藻指数法的基本原理,通过比较、分析发现:硅藻属指数适用于综合评价亚热带、热带地区的水体污染程度;硅藻模型相似性指数适用于评价气候稳定地区的水污染状况;生物硅藻指数适用范围广,稳定性最好;湖泊富营养化硅藻指数、营养指数、富营养化硅藻指数均为可靠的水体富营养化评价指数。指出目前硅藻的分类与鉴定体系不够完善,还应开展研究消除季节变化对硅藻指数方法稳定性的影响。
The indicative function of water quality by diatom community and basic principle of diatoms index method were described. By comparison and analysis it was found the variety of diatom assemblage in quantity by mathematical methods was applied to evaluate the water pollution in the tropics and subtropics areas. Similarity index of diatom model was suitable to evaluate water pollution in the areas with stable climate. Biological diatom index had wide applicable scope and best stability. Lake eutrophication diatom index, index of nutrition, eu- trophication diatom index were reliable methods for water eutrophication evaluation. At present classification and identification system of diatoms were not perfect and still manage to eliminate seasonal change on the stability of diatoms index method.
出处
《环境监测管理与技术》
2009年第5期12-16,共5页
The Administration and Technique of Environmental Monitoring
关键词
硅藻指数
生物监测
水质评价
Diatom indices
Biomonitoring
Water quality assessment
