SOLS CALCAIRES SOLS ARGILEUX | SOLS SILICEUX

| Perchiset jeune futaie. | 50h X 0f30—15f | 50h X 0/50 —29f | 50h X 0f60 — 30! Vides. . | 5hX5f =925f| 5hXSf —40f) 5h X A0 = 50!

Totale. 40 lé Total.. 6Btl/ “ Tétal xs at

Cas d'une revolution de 150 ans :

Perchiset jeune futaie. | 400h X0f30—30f | 100h X0f50—50f | 100h x 0F60—60f Vides. Dhx5f —25f| 5hx8f —A0f| 5hXAO —50f

Total. . 55f| . Total. . 90f|. Total. 410f