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Dendroecological analysis of a Fitzroya cupressoides and a Nothofagus nitida stand in the Cordillera Pelada, ChileAuthor(s): Margaret S. Devall; Bernard R. Parresol; Juan J. Armesto
Source: Forest Ecology and Management. 108: 135-145.
Publication Series: Miscellaneous Publication
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DescriptionLumbering of Fitzroya cupressoides in Chile began in 1599 and continued until 1976, when the species was declared a national monument and cutting of live trees was prohibited. Today, F. cupressoides is threatened; many of the remaining stands in the coastal range appear to be declining, with a predominance of standing dead stems and patchy, sparse regeneration. The scientists performed tree-ring analysis on a F. cupressoides stand and a nearby Nothofagus nitida stand in the Cordillera Pelada of coastal Chile (40ES) in order to examine the ecological history of two stands in the montane forest. Analysis demonstrates that the F. cupressoides stand has undergone several periods of growth release and disturbance; the last 34 years of the chronology show a trend of increasing growth. In contrast, after 1865 radial growth of the N. nitida stand is fairly constant and steady. Radial growth of these two species is highly correlated with spring rainfall. November rainfall of the current growing season proved to be the best growth predictor of F. cupressoides, whereas current June and December rain and December rain of the past growing season best predicted growth of N. nitida. Although episodic disturbances have occurred, the chronologies demonstrated that these stands are vigorous, despite the presence of dead stands nearby. These results do not support the idea that climatic deterioration is responsible for the decline of F. cupressoides during the past 77 years.
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CitationDevall, Margaret S.; Parresol, Bernard R.; Armesto, Juan J. 1998. Dendroecological analysis of a Fitzroya cupressoides and a Nothofagus nitida stand in the Cordillera Pelada, Chile. Forest Ecology and Management. 108: 135-145.
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