![]() Recent evidence suggests, however, that the initial solute losses are largely an effect of the unnatural drying procedures to which experimental leaves are normally subjected. Leaching, the massive loss of soluble leaf components within 24 h after immersion, is generally considered to constitute a well-defined first stage. Specifically, we think the idea that breakdown proceeds in three distinct temporal stages (leaching, conditioning, fragmentation) has been overemphasized. ![]() We argue that current views of the process in freshwaters need to be conceptually improved. Leaf litter breakdown, a critical ecosystem level process in streams and other aquatic environments, has been conceptualized using models borrowed from terrestrial systems.
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