Technical Comments

Comment on "Fire-Derived Charcoal Causes Loss of Forest Humus"

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Science  05 Sep 2008:
Vol. 321, Issue 5894, pp. 1295
DOI: 10.1126/science.1160005


Wardle et al. (Brevia, 2 May 2008, p. 629) reported that fire-derived charcoal can promote loss of forest humus and belowground carbon (C). However, C loss from charcoal-humus mixtures can be explained not only by accelerated loss of humus but also by loss of charcoal. It is also unclear whether such loss is related to mineralization to carbon dioxide or to physical export.

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