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Table 1 Classification of input variables and scoring of candidate groundwater station according to the total agro-environmental loads at the municipality level

From: A novel LUMNAqSoP approach for prioritising groundwater monitoring stations for implementation of the Nitrates Directive

Class

Range of input variables

Total loads

Variable 1

Variable 2

Variable 3

Variable 4

Variable 5

LUM (%)

N-min (kg/ha)

N-org (kg/ha)

Aq (vulnerability index)*

SoP (hydraulic conductivity m/day)

1

1–16

20.1–54.4

0.0–6.2

Very low (26–80)

Very poor (≤ 0.01)

 

2

17–23

54.5–66.6

6.3–11.5

Low (> 8–105)

Poor (> 0.01–0.05)

3

24–29

66.7–74.2

11.6–16.9

Moderate (> 105–140)

Weak to moderate (> 0.05–0.1)

4

30–36

74.3–95.8

17.0–24.7

Increased (> 140–186)

Moderate to high (> 0.1–0.5)

5

37–44

95.9–108

24.8–38.0

High (> 186–210)

High to very high (> 0.5–1.0)

6

45–51

108.1–129

38.1–154

Very high (> 210–260)

Very high (> 1.0)

7

52–62

    

8

63–89

    

Total

8

6

6

6

6

32

  1. *Valid for Panonian basin