HUBEI AGRICULTURAL SCIENCES ›› 2026, Vol. 65 ›› Issue (1): 36-41.doi: 10.14088/j.cnki.issn0439-8114.2026.01.007

• Resource & Environment • Previous Articles     Next Articles

Purification effect of Epipremnum aureum and Scirpus validus on ammonia nitrogen under different ammonia nitrogen concentrations in winter

GE Guang-huana,b, MENG Xiao-juna,b, YANG Lu-pinga, LI Yan-rua   

  1. a. School of Chemistry and Environment; b. Academician (Expert) Work Station of Shaanxi Province, Ankang University, Ankang 725000, Shaanxi, China
  • Received:2025-08-14 Online:2026-01-25 Published:2026-02-10

Abstract: Taking two native plants Epipremnum aureum and Scirpus validus in Ankang City, Shaanxi Province as the research objects, three initial ammonia nitrogen concentrations of 0.33 (control), 2.00 and 6.30 mg/L were set up. Through 22 days of hydroponic experiments, the removal effect of ammonia nitrogen in water under low temperature conditions in winter was explored. The results showed that the removal rate of ammonia nitrogen by Scirpus validus was 84.50%-93.65%, which was significantly better than that of Epipremnum aureum (which released ammonia nitrogen due to root rot). The pH of the water treated with Scirpus validus was stable, and the fluctuation of dissolved oxygen was small. Additionally, the chlorophyll content (characterized by leaf SPAD value) and nitrogen accumulation in the leaves of Scirpus validus were higher than those of Epipremnum aureum. The adaptability of Epipremnum aureum was poor at low temperature in winter, with root rot increasing the risk of secondary pollution. Therefore, it was recommended to preferentially select Scirpus validus as a restoration plant for eutrophic water bodies in winter.

Key words: aquatic plants, Epipremnum aureum, Scirpus validus, ammonia nitrogen removal, eutrophication, seasonal effects

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