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Copper deficiency in Douglas fir.
Copper deficiency in Douglas fir. n.b. crook in stem. Razès.
Copper deficiency in Douglas fir.
Copper deficiency in Douglas fir. n.b. crook in stem which is a symptom of Cu deficiency. Razès.
Copper deficiency in Douglas fir.
Copper deficiency in Douglas fir. n.b. crook in stem which is a symptom of Cu deficiency. Razès.
Heathland, that has been cultivated then planted with Douglas fir which now has a copper deficiency.
Oil profile-sol brun acide. Heathland, that has been cultivated then planted with Douglas fir which now has a copper deficiency. Razès.
Root system of 8 year old Douglas fir.
Root system of 8 year old Douglas fir. n.b. how limited the system is. Dussac, Dordogne.
Root system of 8 year old Douglas fir.
Root system of 8 year old Douglas fir. n.b. how limited the system is. Dussac, Dordogne.
Natural regeneration of chestnut.
Natural regeneration of chestnut. Dussac, Dordogne.
Coppice of chestnut (Castanea sativa).
Coppice of chestnut (Castanea sativa). Dussac, Dordogne
Chestnut coppice with standards being replaced with Douglas fir-in background.
Chestnut coppice with standards being replaced with Douglas fir-in background. Dussac, Dordogne.
Crowns of 80 year old eastern white pine.
Crowns of 80 year old eastern white pine. Dawson Pond, Leslie Frost Centre.