Chapter 10 : Impacts of natural disturbance on soil carbon dynamics in forest ecosystems . Steven
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چکیده
INTRODUCTION Forest soils are entities within themselves, selforganized and highly resilient over time. The transfer of energy bound in carbon (C) molecules drives the organization and functions of this biological system (Fisher and Binkley, 2000; Paul and Clark, 1996). Photosynthetic organisms reduce atmospheric C and store energy from solar radiation in the formation of complex C molecules. This bound energy is transferred to mineral soil in the form of litterfall, root turnover, and root exudates supporting an intricate detrital trophic structure (Fisher, 1995). Much of the C moving through this detrital food web is released annually back to the atmosphere as CO2 from respiration (see Chapter 7), but resident in the mineral soil is a large pool of C that is recalcitrant to decomposition.
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