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Soil Weathering Stage, Vegetation Succession, and Canopy Dieback

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Title:Soil Weathering Stage, Vegetation Succession, and Canopy Dieback
Authors:Walker, J.
Thompson, C.H.
Jehne, W.
Date Issued:Oct 1983
Publisher:University of Hawai'i Press
Citation:Walker J, Thompson CH, Jehne W. 1983. Soil weathering stage, vegetation succession, and canopy dieback. Pac Sci 37(4): 471-481.
Abstract:A conceptual model that provides a means of viewing changes
in vegetation as responses to weathering of soil mantles over thousands of years
has been developed from investigations of vegetation communities on a soil
chronosequence on sand dunes extending back in time to at least the last
interglacial. Progressive and retrogressive phases in natural plant succession
are indicated by this sequence. A similar model is used to postulate that the
various canopy dieback symptoms and agents observed in the New England
tablelands of New South Wales, Australia, represent the mechanisms by which
changes are occurring in retrogressive ecosystems that have been disturbed by
human land use. We suggest that investigations of the etiology of diebacks need
to be made in the context of temporal changes in soil fertility associated with
the degree of soil weathering.
Appears in Collections: Pacific Science Volume 37, Number 4, 1983

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