人工草型池塘中沉水植物种植对水体理化因子和浮游生物的影响OA
Effects of submerged plant cultivation on water physicochemical parameters and plankton in artificial grass-type ponds
为探究人工草型池塘中水体理化因子与浮游生物组成特性,本研究构建了种植苦草(Vallisneria natans)与狐尾藻(Myriophyllum verticillatum)的草型池塘,种植密度分别为 60 株/m2 和 20 株/m2.通过季节性采样和与水源池塘对比,系统分析沉水植物对水体理化因子和浮游生物组成的影响.结果表明:草塘与水源池塘的沉水植物的密度与生物量差异显著.草塘水体的水温略高于水源池塘;草塘水体的透明度和 pH 显著高于水源池塘;草塘水体的溶解氧略低于水源池塘;草塘水体的总磷、总氮、氨氮和亚硝态氮均极显著低于水源池塘.草塘水体浮游植物密度和生物量极显著低于水源池塘;草塘水体的后生浮游动物密度和生物量略低于水源池塘.草塘水体浮游植物检测到 6 门 25 属 41 种,水源池塘检测到浮游植物 8 门 39 属 57 种,草塘以水绵(Spirogyra communis)的优势度最高,水源池塘以弓形藻(Schroederia setigera)的优势度最高;草塘水体中共检测到后生浮游动物 23 种,水源池塘检测到浮游动物 35 种,草塘以桡足类无节幼体(Nauplius)的优势度最高,水源池塘以针簇多肢轮虫(Pol-yarthra trigla)的优势度最高.冗余分析和 Pearson 相关系数矩阵揭示,沉水植物是驱动水体理化因子变化的核心要素,浮游生物的生物量与群落组成又受到沉水植物与水体理化因子的协同调控.本研究表明,人工种植沉水植物可显著改良水质,形成低营养盐浓度、高透明度、高溶解氧及高 pH 的水体环境,并通过沉水植物-水质协同机制调节浮游生物群落组成,该模式可为维持池塘生态稳定性与渔业发展提供部分参考.
This study constructed ponds planted with Vallisneria natans and Myriophyllum verticillatum at planting densities of 60 plants/m2 and 20 plants/m2 to investigate the relationship between physicochemical parameters and zooplankton composition in artificial grass-type ponds.Through seasonal sampling and comparison with source ponds,the effects of submerged plants on water physicochemical parameters and plankton composition were systematically analyzed.The results indicated that significant differences existed between grass ponds and source ponds in submerged plant density and biomass.WT in grass ponds was slightly higher than in source ponds;SD and pH in grass ponds were significantly higher than in source ponds;DO in grass ponds were slightly lower than in source ponds;TP,TN,NH3-N,and NO-2-N concentrations in grass ponds were sig-nificantly lower than in source ponds.Phytoplankton density and biomass in grass ponds were significantly low-er than in source ponds;metazoan zooplankton density and biomass in grass ponds were slightly lower than in source ponds.Phytoplankton in the grass pond comprised 6 phyla,25 genera,and 41 species,while the source pond contained 8 phyla,39 genera,and 57 species.Spirogyra communis exhibited the highest dominance in the grass pond,whereas Schroederia setigera dominated the source pond.A total of 23 metazoan zooplankton species were detected in the grass pond,while 35 species were found in the source pond.Nauplii copepods ex-hibited the highest dominance in the grass pond,whereas Polyarthra trigla rotifers showed the highest dominance in the source pond.RDA analysis and Pearson correlation matrices revealed that submerged plants were the core limiting factor driving water physicochemical parameters,while zooplankton biomass and community composi-tion are synergistically regulated by both factors.This research demonstrates that artificially planted submerged plants significantly improve water quality,creating a low-nutrient,high-SD,high-DO,and high-pH aquatic environment.Through synergistic mechanism between submerged plant and water quality,they regulate zoo-plankton community composition.This model can provide a partial reference for maintaining pond ecological stability and promoting fishery development.
刘一帆;潘峰;赵金良;曹元乐;常广秋
上海海洋大学农业农村部淡水水产种质资源与利用重点实验室,上海 201306||上海海洋大学上海市水产动物良种创制与绿色养殖协同创新中心,上海 201306||上海海洋大学水产科学国家级实验教学示范中心,上海 201306上海同瑞环保工程有限公司,上海 200436上海海洋大学农业农村部淡水水产种质资源与利用重点实验室,上海 201306||上海海洋大学上海市水产动物良种创制与绿色养殖协同创新中心,上海 201306||上海海洋大学水产科学国家级实验教学示范中心,上海 201306上海同瑞环保工程有限公司,上海 200436||江苏同氿生态环境科技有限公司,江苏 无锡 214299上海同瑞环保工程有限公司,上海 200436
农业科技
人工草型池塘沉水植物水体理化性质浮游生物
Artificial grass-type pondssubmerged plantsphysical and chemical factors of water bodiesplankton
《淡水渔业》 2026 (3)
56-67,12
国家现代农业产业技术体系项目(CARS-46)江苏同氿生态环境科技有限公司校企合作项目(202310)
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