CAJ | 학술논문

2013年6~8月对三峡库区汉丰湖的浮游植物群落进行了调查，共检出浮游植物7门72种，优势种为针杆藻、舟形藻、直链藻、卵形藻、栅藻、伪鱼腥藻、平裂藻。浮游植物在东河入口以硅藻为主，南河入口以蓝、绿藻居多。运用典范对应分析对浮游植物与环境因子关系进行研究。结果表明，东河入口物种受水体理化性质影响大，南河入口物种受营养盐含量影响大，影响浮游植物群落结构的主要因子为温度、溶解氧( DO)、pH、总氮( TN)、总磷( TP)、可溶性氮( DN)与可溶性磷( DP)。
2013년6~8월대삼협고구한봉호적부유식물군락진행료조사，공검출부유식물7문72충，우세충위침간조、주형조、직련조、란형조、책조、위어성조、평렬조。부유식물재동하입구이규조위주，남하입구이람、록조거다。운용전범대응분석대부유식물여배경인자관계진행연구。결과표명，동하입구물충수수체이화성질영향대，남하입구물충수영양염함량영향대，영향부유식물군락결구적주요인자위온도、용해양( DO)、pH、총담( TN)、총린( TP)、가용성담( DN)여가용성린( DP)。
The phytoplankton community in Hanfeng Lake Reservoir, located in the Three Gorges Reservoir Areas of Yangtze River, was investigated from Jun to August 2013. The results showed that 72 species belonging to 7 phyla of phytoplankton were detected in the water. The dominant species were Synedra, Navicula, Melosira, Cocconeis, Scenedesmus, Pseudoanabaena and Merismopedia. The phytoplankton at the entrance of Donghe River was mainly composed of Bacillariophyta, while that at the entrance of Nanhe River was dominated by Cyanophyta and Chlorophyta. Canonical correspondence analysis was applied to investigate the relationships between the distribution of phytoplankton and the environmental factors. The results showed that the species of phytoplankton at the entrance of the Donghe River were influenced by the physiochemical properties of the water, while those at the entrance of Nanhe River were affected by the nutrient status of the water. The key factors influencing the distributions of phytoplankton were temperature, dissolved oxygen ( DO) , pH, total nitrogen ( TN) , dissolved nitrogen ( DN) and dissolved phosphorus ( DP) .