CAJ | 학술논문

三峡水库自建成运行以来,澎溪河流域富营养化问题日益突出. 本研究在2014年4-7月易发生水华的春夏时期进行,对澎溪河流域藻类群落结构特征及水质状况进行跟踪分析. 结果表明:水华发生时,水环境特征发生显著变化,水质状况恶化,藻细胞密度急剧升高,藻细胞密度最高达到1176 ×10 4 cells/L,水华藻种为角甲藻和铜绿微囊藻,藻种种类单一,藻类多样性显著变低. 空间分布上,藻细胞密度从上游向下游呈增高趋势. 相关性分析表明:藻细胞密度与TN、TP呈显著正相关,藻类大量增殖爆发与水体营养盐浓度升高具有重要联系,澎溪河流域水华问题的防治有赖于对流域内营养盐排放的有效治理.
삼협수고자건성운행이래,팽계하류역부영양화문제일익돌출. 본연구재2014년4-7월역발생수화적춘하시기진행,대팽계하류역조류군락결구특정급수질상황진행근종분석. 결과표명:수화발생시,수배경특정발생현저변화,수질상황악화,조세포밀도급극승고,조세포밀도최고체도1176 ×10 4 cells/L,수화조충위각갑조화동록미낭조,조충충류단일,조류다양성현저변저. 공간분포상,조세포밀도종상유향하유정증고추세. 상관성분석표명:조세포밀도여TN、TP정현저정상관,조류대량증식폭발여수체영양염농도승고구유중요련계,팽계하류역수화문제적방치유뢰우대류역내영양염배방적유효치리.
Since the Three Gorges reservoir had been constructed and operated ,the eutrophication prob-lem in the Pengxi river has become increasingly prominent .The research was carried out in Spring and summer seasons when algal bloom is easy to take place from April to July ,2014 .The paper analyzed the structure feature of algal bloom diversity and situation of water quality in Pengxi river basin .The result showed that when alga bloom took place ,the feature of water environment changed evidently and the situa-tion of water quality is more serious .The density of algal cell is quickly increased and can got to 1176 × 104 cells/L.The species of algae is water bloom algae and pseudomonas aeruginosa .The algae species are single and the diversity of algae is significantly lower .The density of algal cell in downstream was much higher than that in upstream on space distribution .The relative analysis indicated that the density of algal cell is positively correlated with TN and TP .Algae proliferation outbreak has an important link with the in-crease of water nutrient concentration .The control of algae bloom in Pengxi River basin depends on effec-tive governance of watershed nutrient salt emission .