a decreasing trendp <0.05
The NPP for 31–50-year-old stands was 0.78 ± 0.24 kgC m -2 year -1 and exhibited a decreasing trend with stand age ( p <0.05; Fig 8A ).
The NPP for 31–50-year-old stands was 0.78 ± 0.24 kgC m -2 year -1 and exhibited a decreasing trend with stand age ( p <0.05; Fig 8A ).
The estimated biomass C from NFI exhibited an increasing trend with stand age for at least up to 50 years, which probably includes the negative effect of harvesting at higher stand ages ( Fig 9A ).