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Table 11 Summary statistics for TN

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

Quality category

na

TN loading rate (g m−2 year−1)

TN removal rate (g m−2 year−1)

TN removal Efficiency (%)

 

Av. ± 1SE (range)

Med

Av. ± 1SE (range)

Med.

Av. ± 1SE (range)

Med.

2 and 3

112

505 ± 579 (2.12–2486)

255

181 ± 251 (−0.3–1270)

93

39 ± 21 (−12.8–93)

38

2

88

578 ± 608 (2.12–2486)

378

207 ± 269 (−0.3–1270)

120

39 ± 23 (−12.8–93)

38

3

24

237 ± 353 (12.3–1424)

113

85 ± 128 (1.7–584)

43

39 ± 16 (14.8–87)

36

  1. n number of wetlands, Av. arithmetic mean, SE standard error, Med median
  2. aSome articles have reported results for more than one wetland