CAJ | 학술논문

2013年5月、9月及10月在镜泊湖26个采样位点共采集到浮游藻类8门74属140种.其中绿藻门最多,共58种,占41.5%.浮游藻类组成以绿藻和硅藻占优,并且藻类群落结构存在明显的时空差异,各调查位点藻的种类范围在3~35种,密度范围在0.5×104~230.8×104个/L.调查期间,浮游藻类的Margalef指数、Shanoon-Wienner指数以及Pieloud指数范围分别为0.48~2.31,1.27~3.97,0.45~0.94,水体综合营养状态指数值TLI在40~60之间,总的来看,镜泊湖水体属于中营养-轻度富营养状态.Pearson相关分析结果显示,镜泊湖藻类群落分布受水环境因子影响明显.整体上,水温、DO、SD、CODMn及NH3-N是影响镜泊湖藻类种群分布格局的主要因素.
2013년5월、9월급10월재경박호26개채양위점공채집도부유조류8문74속140충.기중록조문최다,공58충,점41.5%.부유조류조성이록조화규조점우,병차조류군락결구존재명현적시공차이,각조사위점조적충류범위재3~35충,밀도범위재0.5×104~230.8×104개/L.조사기간,부유조류적Margalef지수、Shanoon-Wienner지수이급Pieloud지수범위분별위0.48~2.31,1.27~3.97,0.45~0.94,수체종합영양상태지수치TLI재40~60지간,총적래간,경박호수체속우중영양-경도부영양상태.Pearson상관분석결과현시,경박호조류군락분포수수배경인자영향명현.정체상,수온、DO、SD、CODMn급NH3-N시영향경박호조류충군분포격국적주요인소.
This research was performed at May, September and October in 2013 at 26 stations of Jingpo Lake, aiming to investigate the algal species. A total of 140 kinds of algal species belonging to 74 genera of 8 phyla were identified. The algal community was dominated by Chlorophyta and Bacillariophyta, and significant difference was found on algal composition across 26 sampling stations. The algae had the species ranging from 3 to 35 and abundance ranging from 0.5×104 to 230.8×104cells/L, and obviously different across the sampling stations in the three seasons. Overall, Margalef values varied from 0.48 to 2.31, while Shannon-Wienner and Pieloud varying from 1.27 to 3.97 and 0.45 to 0.94, and TLI of the water varied from 40 to 60, both showing that the water status of Jingpo Lake varied from middle nutrition to light eutrophication. Pearson correspondence analysis was applied to explore the relationship between algal species and environmental parameters by SPSS 13.0. The result showed that water temperature, dissolved oxygen (DO), transparency (SD), permanganate index (CODMn) and ammonia nitrogen (NH3--N) were the most important factors influencing the distribution of algal species across the 26sampling stations. Besides these, the other factors just like total nitrogen (TN) and fluorides (F) were also important to the algal species.