Table 1 Values of input and output variables in the forest holding of Central Finland when NPV is maximized with 2Â % discount rate, and the symbols of weights and slack variables used in the DEA model
From: Which type of forest management provides most ecosystem services?
Variable | Weight | Slack | RFM | CCF | AAF | Unit |
|---|---|---|---|---|---|---|
Inputs | ||||||
 • Growing stock volume | v 1 | w 1 | 38.14 | 38.14 | 38.14 | 1000 m3 |
 • Silvicultural costsa | v 2 | w 2 | 153.85 | 0 | 12.54 | 1000 €/30 years |
Outputs | ||||||
 • Net present value | u 1 | s 1 | 1.60 | 1.76 | 1.78 | million € |
 • Harvested volume | u 2 | s 2 | 25.22 | 35.30 | 36.30 | 1000 m3/30 years |
 • Carbon balance | u 3 | s 3 | 8.52 | 8.37 | 7.93 | Mg/30 years |
 • Scenic beauty index | u 4 | s 4 | 5.16 | 5.82 | 5.56 | 30-year average |
 • Annual berry yield | u 5 | s 5 | 34.53 | 38.73 | 37.90 | kg/ha, 30-year average |
 • Habitat area | u 6 | s 6 | 165.33 | 199.93 | 186.0 | ha, 30-year average |