Charring temperatures are driven by the fuel types burned in a peatland wildfire
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Charring temperatures are driven by the fuel types burned in a peatland wildfire
Peatlands represent a globally important carbon store; however, the human exploitation of this ecosystem is increasing both the frequency and severity of fires on drained peatlands. Yet, the interactions between the hydrological conditions (ecotopes), the fuel types being burned, the burn severity, and the charring temperatures (pyrolysis intensity) remain poorly understood. Here we present a p...
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Peatlands contain one-third of soil carbon (C), mostly buried in deep, saturated anoxic zones (catotelm). The response of catotelm C to climate forcing is uncertain, because prior experiments have focused on surface warming. We show that deep peat heating of a 2 m-thick peat column results in an exponential increase in CH4 emissions. However, this response is due solely to surface processes and...
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Wildfire is one of the most significant forms of natural disturbance, impacting a wide range of ecosystems ranging from boreal forests to Mediterranean shrublands and tropical rainforest. One of the greatest uncertainties in assessing fire danger is our knowledge of fuels. Fuel properties vary at fine spatial scales, change depending on stand age and prior disturbance history and vary seasonall...
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ژورنال
عنوان ژورنال: Frontiers in Plant Science
سال: 2014
ISSN: 1664-462X
DOI: 10.3389/fpls.2014.00714