Abstract
SUMMARY (1) In south-central Chile, bamboos of the genus Chusquea often dominate the undergrowth of the mainly broad-leaved rain forests, and where these forests have been burned or logged they frequently form dense thickets in which tree regeneration is greatly impeded. (2) Standing crop and above-ground net primary production were estimated for a pure stand of C. culeou at 700 m altitude, and standing crop for C. tenuiflora in the understorey of a mixed Nothofagus betuloides-N. pumilio forest near the timberline at 1040 m in the Andes. (3) Above-ground biomass of the Chusquea culeou thicket and the C. tenuiflora undergrowth was approximately 156-162 t ha- 1 and 13.0 t ha- 1, respectively. (4) The annual above-ground net primary production for the C. culeou thicket was approximately 10.0-1 1.4 t ha- 1.
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