摘要
于2007年10月平水期对猫跳河流域梯级水库进行浮游植物的样品采集.猫跳河流域梯级水库共检出浮游植物236种(含变种和变型),隶属于6门8纲18目29科44属,其中蓝藻门40种,占总种数的17%,硅藻门62种,占总种数的26%,隐藻门19种,占总种数的8%,甲藻门7种,占总种数的3%,绿藻门108种,占总种数的46%.梯级水坝的建设改变猫跳河流域的水量时空调配,严重降低其水流速度,导致浮游植物群落从河流向"湖沼型"转变.通过几个指标的测定,各梯级水库的水体不同程度的受到污染,水质均在中度污染以及中度富营养化状态.
Water samples were collected by using standard methods at six locations in Maotiao River during Oct,2007. 236 species of phytoplankton were identified belonging to 44 genera,29 families, 18orders, 8classes and 6divisions respectively in which 40 species, of Cyanophyta account for 17 %; 62species, of Bacillariophyta account for 26 %; 19 species of Cryptophyta, account for 8 %; 7species of Dnophyta, account for3 %; 108 species of Chlorophyta, account for 46 %. Cascade reservoirs has changed the rearrangement of the water yield in Maotiao River, which has reduced their streams speed greatly and caused the change of phytoplankton community from fluvial facies to the lake facies. According to several indexes determined, the results showed the reservoir were polluted, and water quality assessment belonged to middle pollution-heavy pollution.
出处
《海南师范大学学报（自然科学版）》
CAS
2009年第2期209-213,共5页
Journal of Hainan Normal University（Natural Science）
基金
国家自然科学基金项目(90610037
40603004
40721002)
国家重点基础发展研究计划(2006CB403205)
贵州省科学技术基金资助项目(黔科合J[2008]2035)
关键词
猫跳河
梯级水库
浮游植物
水质评价
Maotiao river
cascade reservoirs
Phytoplankton
water quality assessment
