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Soil profile - Entisol in fine sandy silt supporting 250-year ponderosa pine.
Soil profile - Entisol in fine sandy silt supporting 250-year ponderosa pine. Coconino National Forest. Flagstaff.
Ponderosa pine at 54 years. thinned at age 43 years to 50sq.ft/acre.
Ponderosa pine at 54 years. thinned at age 43 years to 50sq.ft/acre. Taylor Woods. United States Forest Service Flagstaff.
Dense control in 54-year-old ponderosa pine Base Area 150sq.ft./acre. person is Gil Schubert.
Dense control in 54-year-old ponderosa pine Base Area 150sq.ft./acre. person is Gil Schubert. Taylor Woods, United States Department of Agriculture Flagstaff
250-year ponderosa pine with younger 54-year-old natural regeneration.
250-year ponderosa pine with younger 54-year-old natural regeneration. Coconino National Forest. Flagstaff
Dense control in 54-year-old ponderosa pine Base Area 150sq.ft./acre. person is Gil Schubert.
Dense control in 54-year-old ponderosa pine Base Area 150sq.ft./acre. person is Gil Schubert. Taylor Woods, United States Department of Agriculture Flagstaff
54-year-old natural regeneration of ponderosa pine.
54-year-old natural regeneration of ponderosa pine. Coconino National Forest Flagstaff
54-year stand with 5-year-old regeneration after cut in 1967.
54-year stand with 5-year-old regeneration after cut in 1967. Coconino National Forest Flagstaff
54-year stand with 5-year-old regeneration after cut in 1967.
54-year stand with 5-year-old regeneration after cut in 1967. Coconino Nat.Forest Flagstaff
5-year-old regeneration browsed by elk
5-year-old regeneration browsed by elk N.B. elk pellets. Coconino National Forest Flagstaff
Fire (week before photo) in open-grown ponderosa pine
Fire(week before photo) in open-grown ponderosa pine. Sunset Crater, Flagstaff