Forest Ecosystems

Table 2 Net present value calculated with 3% discount rate and optimal rotation length in the optimizations conducted for pine plantation

From: Stand management optimization – the role of simplifications

Optimization problem	NPV, €/ha		Rotation length, yrs
Optimization problem	10% damage	40% damage	10% damage	40% damage
1 Low thinning max 40%	847		64
2 Free thinning max 40%	1190		76
3 Free thinning no limit	1415		80
4 Mixed stand	1539		78
5 Ingrowth, 3 thinnings	1598	1597	112	113
6 Ingrowth, 4 thinnings	1659	1640	126	130
7 Ingrowth, 5 thinnings	1663	1649	137	125

When ingrowth was simulated, either 10% or 40% of understorey trees were assumed to be damaged in a thinning treatment.

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