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Table 3 Parameters and data that will be recorded if provided

From: How effective are created or restored freshwater wetlands for nitrogen and phosphorus removal? A systematic review protocol

Loading characteristics Wetland characteristics Climate characteristics Study design parameters Results
Type of water Type of wetland Annual mean air temperature Study length Annual average removal rates (g m-2 y-1)
Concentrations and speciation of N and P at inlet Length, Width, Depth, Annual mean water temperature Sampling frequency Annual average removal efficiency (% of load)
Annual average inflow loadings Area Ice coverage Flow proportional Sampling (Y/N) Number of observations (years)
Hydraulic load (m/d) Hydroperiod (d) GPS coordinates   Standard deviation
Timing of peak discharge Dominant plant species and coverage Climate type1)   
Residence time (d) Sediment/soil type    
pH Land use history and wetland age    
  O2 concentration and redox potential    
  Fauna    
  Management methods    
  Main purpose of wetland    
  Other characteristics2)    
  1. 1)According to the Köppen-Geiger climate classification [21]. This data will in most cases not be provided by the primary studies but will be extracted elsewhere.
  2. 2)May include, e.g., specific substrates, soil amendments, configuration of multiple wetlands, or other means of enhancing the outcome.