Tropical and Subtropical Peatland.7z - The Sustainable Wetlands Adaptation and Mitigation Program (SWAMP)

Tropical and Subtropical Peatland.7z

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File Citation

Gumbricht, T; Román-Cuesta, R.M.; Verchot, L.V.; Herold, M.; Wittmann, F; Householder, E.; Herold, N.; Murdiyarso, D., 2017, "Tropical and Subtropical Wetlands Distribution version 2", https://doi.org/10.17528/CIFOR/DATA.00058, Center for International Forestry Research (CIFOR), V1; Tropical and Subtropical Peatland.7z [fileName]

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This file is part of "Tropical and Subtropical Wetlands Distribution".

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d9450f7f2823744bd91eac1aba3f5ce6

Publication Date

2017-04-17

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Description

Distribution of peatland that covers the tropics and sub tropics, excluding small islands. It was mapped in 231 meters spatial resolution. Peat is here defined as any soil having at least 30cm of decomposed or semi-decomposed organic material with at least 50% of organic matter. This corresponds to 29% of carbon content using 1.72 as the transformation factor. The peatland map is produced by adding the peat forming wetlands: mangrove (20), swamp/bog (30), Fen (40), riverine (50), and floodswamps (60) (note: the number in parentheses refer to pixel code of each class in Wetlands dataset). Our map of peatlands was contrasted against n=275 geo-positioned soil profiles containing peat, with 65% of agreement. Further fieldwork is however needed to validate our map. Mangroves are here considered to host the thresholds of depth and organic matter content needed for peat definition, although mineral soil may prevail. Mangroves contribute with ca. 180,000 km2 to the 1.7 million km2 of peatlands (11%), which would need further ground validation (i.e. in areas like Indonesian Papua have large extents of mangrove that contribute to peat, which would need ground-truthing to validate if they contain peat as defined here).

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2017-04-17

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