东北林业大学学报
東北林業大學學報
동북임업대학학보
JOURNAL OF NORTHEAST FORESTRY UNIVERSITY
2013年
10期
103-107
,共5页
浮游植物%典范对应分析%环境因子%松花江哈尔滨段
浮遊植物%典範對應分析%環境因子%鬆花江哈爾濱段
부유식물%전범대응분석%배경인자%송화강합이빈단
Phytoplankton%Canonical correspondence analysis ( CCA )%Environmental factor%Harbin section of Songhua River
于2011年丰水期（6月份），平水期（8月份）和枯水期（10月份）对松花江哈尔滨段浮游植物进行调查，共监测到浮游植物7门125种及变种；其中硅藻55种，绿藻51种，蓝藻11种，其他8种。不同水文期浮游植物丰度（以液体中生物个体数量计）变化明显，枯水期（6951．6×104个/L）＞平水期（3556．8×104个/L）＞丰水期（2059．2×104个/L）。运用典范对应分析（CCA）及生物多样性指数对浮游植物组成、分布及其与环境因子的关系进行了分析和水质评价。结果表明，枯水期shannon-weaver 指数、Pielou指数和Margalef 指数比丰水期和平水期低，水质相对较差，其中2＃右、4＃右、6＃中处于重污染。典范对应分析显示，水温和浊度是影响浮游植物分布格局的重要环境因子，化学需氧量和总磷也和浮游植物分布有显著的相关性。
于2011年豐水期（6月份），平水期（8月份）和枯水期（10月份）對鬆花江哈爾濱段浮遊植物進行調查，共鑑測到浮遊植物7門125種及變種；其中硅藻55種，綠藻51種，藍藻11種，其他8種。不同水文期浮遊植物豐度（以液體中生物箇體數量計）變化明顯，枯水期（6951．6×104箇/L）＞平水期（3556．8×104箇/L）＞豐水期（2059．2×104箇/L）。運用典範對應分析（CCA）及生物多樣性指數對浮遊植物組成、分佈及其與環境因子的關繫進行瞭分析和水質評價。結果錶明，枯水期shannon-weaver 指數、Pielou指數和Margalef 指數比豐水期和平水期低，水質相對較差，其中2＃右、4＃右、6＃中處于重汙染。典範對應分析顯示，水溫和濁度是影響浮遊植物分佈格跼的重要環境因子，化學需氧量和總燐也和浮遊植物分佈有顯著的相關性。
우2011년봉수기（6월빈），평수기（8월빈）화고수기（10월빈）대송화강합이빈단부유식물진행조사，공감측도부유식물7문125충급변충；기중규조55충，록조51충，람조11충，기타8충。불동수문기부유식물봉도（이액체중생물개체수량계）변화명현，고수기（6951．6×104개/L）＞평수기（3556．8×104개/L）＞봉수기（2059．2×104개/L）。운용전범대응분석（CCA）급생물다양성지수대부유식물조성、분포급기여배경인자적관계진행료분석화수질평개。결과표명，고수기shannon-weaver 지수、Pielou지수화Margalef 지수비봉수기화평수기저，수질상대교차，기중2＃우、4＃우、6＃중처우중오염。전범대응분석현시，수온화탁도시영향부유식물분포격국적중요배경인자，화학수양량화총린야화부유식물분포유현저적상관성。
An investigation on phytoplankton was conducted in theHarbin section of SonghuaRiver during June (wet season ) , August (normal season) and October (dry season) in 2011 bysetting up seven systematically placed sample stations.We identified a total of 125 species, of which 55 were Bacillariophyta, 51 were Chlorophyta, 11 were Cyanophyta and 8 were other species.The phytoplankton abundance changes significantly in different hydrological period, and the order is the dry season (6951.6×104ind./L)>normal season( 3556.8×104ind./L)>wet season (2059.2×104 ind./L).We applied ca-nonical correspondence analysis (CCA) to explore the relationship between phytoplankton composition, distribution and environmental factors, and used biodiversity index to evaluate water quality.Shannon-weaver index, Pielou index and Mar-galef index in dry season are lower than those of wet season and normal season, so the water quality is relatively poor, and 2# right, 4#right and 6#middle are polluted in serious levels in dry season.By CCA, the water temperature and distribu-tion are the main factors affecting the distribution of phytoplankton community.The biochemical oxygen demand and total phosphorus are also significantly positively correlated with the phytoplankton species distribution.
