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Environmental and botanical controls on peatification—a comparative study of two New Zealand restiad bogs using Py-GC/MS, petrography and fungal analysis by T Kuder; M.A Kruge; J.C Shearer; S.L Miller is a Engineering article available to read on EtoBox.

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This study shows that chemical properties of two restiad species, Empodisma minus and Sporadanthus traÕersii, may contribute to their success as peat-formers in a climate of the North Island of New Zealand which is not conducive to raised mire development. Unlike Sphagnum, the equivalent northern hemisphere peat-former, restiads possess lignin in their tissues. In addition, Ž . the presence of non-lignin polyphenols including tannins and phenolic acids in restiads may be an important factor in peat formation due to the allelopathic decay retardation. Patterns of degradation of plant biopolymers have been examined and the pathway of degradation of Ž monocotyledons loss of non-lignin phenolic fraction, depolymerization via modification of side . chains of b-O-4 lignin, depletion of hemicelluloses was identified. Trends in chemical change for lignin were not necessarily paralleled by a similar change in the degree of plant structure preservation-an expression of a complex nature of degradation involving the contributions of several processes affecting different classes of biopolymers to different extents. A further finding of this study is that the degree of lignin breakdown, together

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Author

T Kuder; M.A Kruge; J.C Shearer; S.L Miller

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0166-5162)

Published

1998

Language

EN

Field

Engineering (Physical Sciences)