论文
论文标题: Effects of vermiculite on the growth process of submerged macrophyte Vallisneria spiralis and sediment microecological environment
作者: Bai, Guoliang; Luo, Feng; Zou, Yilingyun; Liu, Yunli; Wang, Rou; Yang, Hang; Liu, Zisen; Chang, Junjun; Wu, Zhenbin; Zhang, Yi
出版刊物: JOURNAL OF ENVIRONMENTAL SCIENCES
出版日期: AUG
出版年份: 2022
卷/期:
DOI: 10.1016/j.jes.2021.08.0381001-0742
论文摘要: Ecological restoration is one of the hot technologies for the reconstruction of eutrophic lake ecosystems in which the restoration and propagation of submerged plants is the key and difficult step. In this paper, the effect of vermiculite on the growth process of Vallisneria spiralis and sediment microenvironment were investigated, aiming to provide a theoretical basis for the application of vermiculite in aquatic ecological restoration. Results of growth indexes demonstrated that 5% and 10% vermiculite treatment groups statistically promote the growth of Vallisneria spiralis compared to the control. Meanwhile, the results of eco-physiological indexes showed that photosynthetic pigment, soluble sugar content, super -oxide dismutase (SOD), and catalase (CAT) activity of 5% and 10% group were increased compared with the control while the malondialdehyde (MDA) content exhibited the oppo-site result ( p < 0.05), which illustrated that vermiculite can improve the resistance of plants and delay the aging process of Vallisneria spiralis. In addition, result of PCA (Principal Com-ponent Analysis) demonstrated 5% and 10% group has improved the sediment physical con-ditions and create more ecological niche for microorganisms directly, and then promoted the growth of plants. The dissolution results showed that vermiculite can dissolve the con-stant and trace elements needed for plant growth. Furthermore, the addition of vermiculite increased the diversity of microorganisms in the sediments, and promoted the increase of plant growth-promoting bacteria and phosphorus-degrading bacteria. This study could provide a technique reference for the further application of vermiculite in the field of ecological restoration. (c) 2022 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
== 实验室与学会 ==
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  • 水产品种创制与高效养殖全国重点实验室
  • 中国科学院藻类生物学重点实验室
  • 农业部淡水养殖病害防治重点实验室
  • 武汉白暨豚保护基金会
  • 湖北省海洋湖沼学会
  • 中国动物学会原生动物学分会
  • 中国动物学会斑马鱼分会
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  • 中国水产学会鱼病学专业委员会
  • 中国鱼类学会
== 平台建设 ==
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  • “一带一路”海域赤潮数据库
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  • 国家斑马鱼资源中心
  • 中国科学院淡水藻种库
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  • 湿地生态系统观测研究野外站联盟
  • 中国科学院水生生物研究所分析测试中心
  • 中国科学院超级计算武汉分中心
  • 水生生物博物馆
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