摘要
为了及时掌握太湖蓝藻发生和暴发状况,为保障流域供水安全和太湖富营养化治理提供必要的基础信息,以1996—2008年太湖各湖区藻类监测资料为基础,结合蓝藻历史变化状况,对太湖13 a的藻类群落组成、优势种的构成、数量和季节变化,以及蓝藻暴发情况进行分析,并对太湖9个湖区分区进行蓝藻暴发特征分析,探讨治理蓝藻水华的措施。结果表明:近十几年来太湖藻类数量总体呈上升趋势,各湖区藻类数量呈夏秋高、冬春低的季节变化,蓝藻暴发时段主要集中在6—9月,8月份达到最高值;蓝藻暴发区域主要集中在太湖西北部的竺山湖、西部沿岸区、梅梁湖等湖湾;湖心区蓝藻数量呈明显增长,需要引起关注。
In order to understand algal occurrence and blooms and to provide the necessary basic information for ensuring water supply safety and eutrophication control for Taihu Lake,the composition of algal species,structure of dominant species,and seasonal variations of the algal community and algal blooms were analyzed based on historical monitoring data from 1996-2008.The characteristics of algal blooms in 9 regions of Taihu Lake were also analyzed and countermeasures for controlling algal blooms are discussed.The results show that the algae populations have had an overall increasing trend in recent decades;that algae populations were higher in summer and autumn than in winter and spring,that algal blooms occurred primarily from June to September,and reached their maximum in August;and that algal blooms occurred primarily in Zhushan Lake,Meiliang Lake,and the western region of Taihu Lake.It is worthwhile to note that the algae populations appear to be growing in the middle region of the lake.
出处
《水资源保护》
CAS
2011年第3期28-32,共5页
Water Resources Protection
关键词
太湖
蓝藻
水质监测
水华
Taihu Lake
cyanobacteria
water quality monitoring
bloom
