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入湖河口区水生植物群落衰亡分解释放营养盐过程模拟研究

陈洪森 叶春 李春华 蔡绪贻 魏伟伟

陈洪森, 叶春, 李春华, 蔡绪贻, 魏伟伟. 入湖河口区水生植物群落衰亡分解释放营养盐过程模拟研究[J]. 环境工程技术学报, 2020, 10(2): 220-228. doi: 10.12153/j.issn.1674-991X.20190108
引用本文: 陈洪森, 叶春, 李春华, 蔡绪贻, 魏伟伟. 入湖河口区水生植物群落衰亡分解释放营养盐过程模拟研究[J]. 环境工程技术学报, 2020, 10(2): 220-228. doi: 10.12153/j.issn.1674-991X.20190108
CHEN Hongsen, YE Chun, LI Chunhua, CAI Xuyi, WEI Weiwei. Simulation study on decomposition and release of nutrients from aquatic macrophyte communities in confluence area between lake and river[J]. Journal of Environmental Engineering Technology, 2020, 10(2): 220-228. doi: 10.12153/j.issn.1674-991X.20190108
Citation: CHEN Hongsen, YE Chun, LI Chunhua, CAI Xuyi, WEI Weiwei. Simulation study on decomposition and release of nutrients from aquatic macrophyte communities in confluence area between lake and river[J]. Journal of Environmental Engineering Technology, 2020, 10(2): 220-228. doi: 10.12153/j.issn.1674-991X.20190108

入湖河口区水生植物群落衰亡分解释放营养盐过程模拟研究

doi: 10.12153/j.issn.1674-991X.20190108
详细信息
    作者简介:

    陈洪森(1994—),男,硕士研究生,研究方向为湖泊水环境生态修复,CHS13137843196@163.com。

    通讯作者:

    蔡绪贻 E-mail: ensonkai@gmail.com

    魏伟伟 E-mail: weiww@craes.org.cn

  • 中图分类号: X524

Simulation study on decomposition and release of nutrients from aquatic macrophyte communities in confluence area between lake and river

More Information
    Corresponding author: CAI Xuyi E-mail: ensonkai@gmail.com; WEI Weiwei E-mail: weiww@craes.org.cn
  • 摘要: 冬春季水生植物衰亡分解是影响水体水质的重要因素之一。为研究入湖河口区水生植物群落在衰亡期的适宜生物量,于2018-12-25—2019-04-25,在实验室模拟近自然条件下,开展水生植物收割后剩余0%、20%、40%、60%、80%、100%茎叶生物量的分解试验。结果表明:水生植物分解过程中,植物茎叶生物量是影响水体水质指标的关键因子,表现为茎叶生物量越大,水体溶解氧(DO)、氧化还原电位(Eh)、pH等理化指标越差,营养盐总氮(TN)、总磷(TP)浓度越高;相关性分析表明,茎叶生物量与水体TN、TP浓度存在极显著正相关(P<0.01),相关系数(R)分别为0.88和0.83;近自然条件下水生植物群落衰亡分解4个月,水体中各营养盐浓度的变化仍未稳定;收割后剩余20%的水生植物茎叶生物量有利于维持入湖河口区较好的水质。

     

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  • 收稿日期:  2019-06-19
  • 刊出日期:  2020-03-20

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