Abstract
Tropical peatlands store ~75 Pg carbon and have operated as long-term net carbon sinks throughout the Holocene. However, intensive land development is destabilizing these reservoirs, resulting in large carbon emissions to the atmosphere and loss of valuable low-latitude peat paleorecords.
Highlights
By area, peatlands have their greatest extent in the boreal and temperate zones (Immirzi et al, 1992) but tropical deposits, located in Southeast Asia, Africa, the Caribbean, and Central and South America, are an important component of the global resource and terrestrial carbon (C) storage in both their above-ground biomass and underlying thick peat mass (Rieley et al, 1996; Page et al, 1999, 2004)
The most important tropical been described from Central Kalimantan Only a few peatlands in Southeast Asia peatlands occur in Southeast Asia (57% of (Indonesian Borneo; Fig. 1) up to 200 km have been investigated for peat structure, total area; 68.5 Pg of C, representing 77% inland from the coast, where they cover age, development, and rates of peat and of global tropical peatland carbon stores). low-altitude, watershed positions (10- C accumulation (e.g., Neuzil, 1997; Brady, In this region, Indonesia holds by far the 30 m asl) (Sieffermann et al, 1988, 1992; 1997; Page et al, 2004; Wüst and Bustin, largest share (57.4 Pg or 65%), followed by Page et al, 1999; Morley, 2000)
Tion, some isolated basin deposits have which range from the Late Pleistocene to formed in and around lakes
Summary
Tropical peatlands store ~75 Pg carbon and have operated as long-term net carbon sinks throughout the Holocene. Intensive land development is destabilizing these reservoirs, resulting in large carbon emissions to the atmosphere and loss of valuable low-latitude peat paleorecords
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