Sensitivity of organic matter decomposition to warming varies with its quality
The relationship between organic matter (OM) lability and temperature sensitivity is disputed, with recent observations suggesting that responses of relatively more resistant OM to increased temperature could be greater than, equivalent to, or less than responses of relatively more labile OM. This lack of clear understanding limits the ability to forecast carbon (C) cycle responses to temperature changes. Here, we derive a novel approach (denoted Q10−q) that accounts for changes in OM quality during decomposition and use it to analyze data from three independent sources. Results from new laboratory ...
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