Modeling size-density trajectories of even-aged ash (Fraxinus excelsior L.) stands in France. A baseline to assess the impact of Chalara ash dieback

Table 4 Estimated parameters (a, b, a1) of the size-density trajectories (with their confidence intervals) and relative density at mortality onset (RDI0) for ash (this paper), beech, and oak (Ningre et al. 2019)

Species	Size density trajectories parameters
	a			b			a₁			RDI₀
	Lower	Est.	Upper	Lower	Est.	Upper	Lower	Est.	Upper
Ash	13.37	13.57	13.78	−1.58	−1.54	−1.51	12.92	13.03	13.15	0.58
Beech	13.30	13.58	13.86	−1.58	−1.51	−1.45	12.09	12.33	12.58	0.29
Oak	13.56	13.73	13.91	−1.69	−1.65	−1.61	12.26	12.69	13.13	0.35

ISSN: 1297-966X