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Forest Ecosystems
Fig. 4 | Forest Ecosystems

Fig. 4

From: Exploring the factors affecting carbon and nutrient concentrations in tree biomass components in natural forests, forest plantations and short rotation forestry

Fig. 4

Relationship between C concentrations for the wood and branches components (excluding bark) and age of the sampled trees. The dashed line corresponds to a local regression model (LOESS) fitted by using the loess function of R (R Core Team 2018) and a smoothing factor of 0.25. All the species studied are pooled together

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