pp 1–9 | Cite as

Macroinvertebrate Community in Subsurface-Flow Constructed Wetlands for Wastewater Treatment under High and Low Pollutant Stress in China

  • Bin Li
  • Yang Yang
  • Sai Wang
  • Ming Wang
  • Kozo Watanabe
Original Research


Constructed wetlands (CWs) for wastewater treatment had drawn much attention for their additional function of conserving freshwater ecosystems. The purpose of this study was to evaluate the macroinvertebrate biodiversity of two subsurface-flow and surface-flow hybrid CW systems (Qimei CW system (QCWS) and Kejiyuan CW system (KCWS)) under high and low pollutant stress in China. Nonmetric multidimensional scaling (NMDS) and canonical correspondence analysis (CCA) were used to analyze the water quality and aquatic macroinvertebrates community data. The results indicated that the subsurface-flow CW could conserve significant macroinvertebrate biodiversity (total taxon richness 17). The community structure was influenced by habitat types (i.e., subsurface-flow vs. surface-flow CWs) under low pollutant stress, and this influence was somehow masked by influence of water quality under high pollutant stress. Good pollutant removal rates were obtained in decreasing the concentrations of total nitrogen (66.37% and 27.28%), total phosphorus (58.93% and 37.55%), and loadings of biochemical oxygen demand (28.38% and 73.71%) in QCWS and KCWS, respectively. This study implied that subsurface-flow CWs could achieved good performance in both water purification and biodiversity conservation, which could provide a more solid basis for the application of subsurface-flow CWs.


Water quality Biodiversity Habitat type Artificial wetland 



This research was supported by Joint Funds of the National Natural Science Foundation of China (Fund No: U1501235) and Japan Society for the Promotion of Science (grant 16H04437). Further acknowledgements to “Guizhou Education Department Young scientific talents Promoting Program” (KY [2016] 160) and “Guizhou Science and Technology foundation program” (BASIC [2016] 1072).


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Copyright information

© Society of Wetland Scientists 2017

Authors and Affiliations

  1. 1.Research Center of HydrobiologyJinan UniversityGuangzhouChina
  2. 2.Department of Civil and Environmental EngineeringEhime UniversityMatsuyamaJapan
  3. 3.Research Center for Karst Wetland EcologyGuizhou Minzu UniversityGuiyangChina

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