Componentes de la diversidad arbórea en bosques de pino encino de Durango, Méx.

Tree species and their relative importance were analyzed in terms of basal area per hectare in 235 sites of 500 m2 each, on three small watersheds of the Sierra Madre Occidental, Durango, México. Sixty-eight percent of the sites had 3 to 5 species, although species number ranged from 1 to 9. The two...

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