Investigation of water quality and aquatic ecological succession of a newly constructed river replenished by reclaimed water in Beijing

• DOI: 10.1016/j.heliyon.2023.e17045
• Publication Date: 2023-06-08T00:17:34Z
• Authors: Zhaoxin Li; Zhiyan Sun; Lei Zhang; Nan Zhan; Chunhua Lou; Jijian Lian
• Keywords: Reclaimed water; Ecological indicator

The potential to create new ecosystems in rivers is possible through the use of reclaimed water as a replenishment source, although long-term effects this method are unknown. In study, quality and aquatic ecological evolution newly constructed river replenished by Beijing (the Jing River) were investigated, conventional quality, phytoplankton indicators, submerged plant growth conditions from October 2018 December 2020 analyzed. Spearman's correlation redundancy analysis between influential environmental factors algal indicators conducted. results show that major could meet standards for landscape water. There seven phyla present, including 322 species phytoplankton. density increased, followed decreasing trend. Phytoplankton densities at each monitoring site reached 10 × 106 25 cells/L 2019 before 2020, then ranging 8 20 cells/L. was influenced changing ecosystems. Consequently, coverage rate gradually increased (0%) (26.27%-37.06%), did biodiversity. Through implementation restoration measures River, environment evolved into more natural environment, which provide some reference similar areas source.