Table 3.

Class boundaries used to transform the applied ecosytem service indicators to a relative scale of potential supply of the specific ecosystem services

Potential ecosystem service supply (relative scale)	0 (no)	1 (very low)	2 (low)	3 (medium)	4 (high)	5 (very high)
Crop provision (CP) Indicator: potential arable yield (t/ha winter barley)	0	≤ 2500	2500 to < 2875	2875 to < 3250	3250 to < 3625	≥ 3625
Water filtration (WF) Indicator: nitrate leaching vulnerability (water exchange rate) (%/a)	-	≥ 250	150 to < 250	100 to < 150	70 to < 100	< 70
Water flow regulation (WFR) Indicator: water storage capacity (mm)	0	< 50	50 to < 90	90 to < 140	140 to < 200	≥ 200
Fresh water provision (FWP) Indicator: percolation rate (mm/a)	0	< 200	200 to < 250	250 to < 300	300 to < 350	≥ 350