Extended Data Table 4 Physical and chemical conditions of drainage canals used to estimate the range of potential daily DOC oxidation rates across Southeast Asia

From: Canal networks regulate aquatic losses of carbon from degraded tropical peatlands

  1. The specific values used to estimate minimum, average, and maximum daily DOC oxidations are provided for photon fluxes (Supplementary Section 3), water column depth (Supplementary Section 4), dissolved Fe, the spectral slope ratio for DOC (SR), and the Naperian absorption coefficient for DOC at 300 nm (a300; Extended Data Table 1). Minimum microbial respiration rates in the drainage canals were calculated assuming that O2 is always depleted with depth (minimum scenario in Extended Data Fig. 6), whereas maximum rates were calculated assuming O2 is always well-mixed with depth (maximum scenario in Extended Data Fig. 6). Minimum photomineralization rates were calculated assuming that DOC is not re-supplied to the sunlit water surface over travel times for DOC in drainage canals, and maximum rates were calculated assuming that re-supply of DOC did not limit photomineralization yields (Fig. 4).
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