Abstract
AbstractSmoldering fires in organic soils have negative effects on air quality and motorist safety as well as global implications from their release of large quantities of refractory C. However, the ecological implications of their occurrence are relatively unexplored despite their potential importance to the management of wetland ecosystems. We developed a conceptual model of the ecohydrologic implications of peat-consuming fires that explores the interactive effects of fire, hydrology, and C dynamics on hydrology. We modify an existing wetland hydrology model parameterized with climate, soil, and spatial data from a low-relief region in southern Florida (USA) to explore hypothesized pyrogeomorphic changes to upland water table elevation, wetland inundation (depth and hydroperiod), and groundwater exchange as a function of fire severity (area and depth of burn). Smoldering fires increase hydroperiod and storage in organic soils in burned wetlands by changing soil elevation. After fire, negative feedbacks...
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