Table 3 Costs and emissions of green treatment methods

From: The potential of carbon markets to accelerate green infrastructure based water quality trading

Name

Abbr.

Type

N Cost (2022$ kgN−1)

P Cost (2022$ kgP−1)

N GWP (kg-CO2eq kgN−1)

P GWP (kg-CO2eq kgP−1)

N Removal (%)

P Removal (%)

Saturated Buffers

BU

Barrier

$ 1.95

$ 14.63

0.10

3.98

90%

50%

Woodchip Bioreactors

BR

Barrier

$ 2.68

$ –

0.70

–

25%

0%

Constructed Wetland

W

Barrier

$ 4.88

$ –

(3.90)

–

50%

0%

N Rate Reduction

NR

Land

$ 0.00

$ 0.00

(9.21)

(105.72)

10%

7%

Split N Application

NS

Land

$ 7.56

$ –

11.10

–

10%

0%

Cover Crop

CC

Land

$ 3.90

$ 158.52

0.55

8.10

30%

30%

No-till

NT

Land

$ –

$ 0.00

–

(91.35)

0%

50%

  1. Treatment “Type" designates if the green treatment method is applied at the edge of the field (Barrier) or applied across the entire farm (Land).