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Carbon accumulation of tropical peatlands over millennia: a modeling approach.
Glob Chang Biol 2015; 21(1):431-44GC

Abstract

Tropical peatlands cover an estimated 440,000 km2 (~10% of global peatland area) and are significant in the global carbon cycle by storing about 40-90 Gt C in peat. Over the past several decades, tropical peatlands have experienced high rates of deforestation and conversion, which is often associated with lowering the water table and peat burning, releasing large amounts of carbon stored in peat to the atmosphere. We present the first model of long-term carbon accumulation in tropical peatlands by modifying the Holocene Peat Model (HPM), which has been successfully applied to northern temperate peatlands. Tropical HPM (HPMTrop) is a one-dimensional, nonlinear, dynamic model with a monthly time step that simulates peat mass remaining in annual peat cohorts over millennia as a balance between monthly vegetation inputs (litter) and monthly decomposition. Key model parameters were based on published data on vegetation characteristics, including net primary production partitioned into leaves, wood, and roots; and initial litter decomposition rates. HPMTrop outputs are generally consistent with field observations from Indonesia. Simulated long-term carbon accumulation rates for 11,000-year-old inland, and 5000-year-old coastal peatlands were about 0.3 and 0.59 Mg C ha(-1) yr(-1), and the resulting peat carbon stocks at the end of the 11,000-year and 5000-year simulations were 3300 and 2900 Mg C ha(-1), respectively. The simulated carbon loss caused by coastal peat swamp forest conversion into oil palm plantation with periodic burning was 1400 Mg C ha(-1) over 100 years, which is equivalent to ~2900 years of C accumulation in a hectare of coastal peatlands.

Authors+Show Affiliations

Institute for the Study of Earth, Oceans and Space and Department of Earth Sciences, University of New Hampshire, Morse Hall 8, College Road, Durham, NH, 03824, USA; Center for International Forestry Research, Jalan CIFOR, Situ Gede, Bogor, 16115, Indonesia.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

25044171

Citation

Kurnianto, Sofyan, et al. "Carbon Accumulation of Tropical Peatlands Over Millennia: a Modeling Approach." Global Change Biology, vol. 21, no. 1, 2015, pp. 431-44.
Kurnianto S, Warren M, Talbot J, et al. Carbon accumulation of tropical peatlands over millennia: a modeling approach. Glob Chang Biol. 2015;21(1):431-44.
Kurnianto, S., Warren, M., Talbot, J., Kauffman, B., Murdiyarso, D., & Frolking, S. (2015). Carbon accumulation of tropical peatlands over millennia: a modeling approach. Global Change Biology, 21(1), pp. 431-44. doi:10.1111/gcb.12672.
Kurnianto S, et al. Carbon Accumulation of Tropical Peatlands Over Millennia: a Modeling Approach. Glob Chang Biol. 2015;21(1):431-44. PubMed PMID: 25044171.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Carbon accumulation of tropical peatlands over millennia: a modeling approach. AU - Kurnianto,Sofyan, AU - Warren,Matthew, AU - Talbot,Julie, AU - Kauffman,Boone, AU - Murdiyarso,Daniel, AU - Frolking,Steve, Y1 - 2014/08/01/ PY - 2014/05/02/received PY - 2014/06/03/accepted PY - 2014/7/22/entrez PY - 2014/7/22/pubmed PY - 2015/8/11/medline KW - carbon sequestration KW - holocene KW - land-use change KW - oil palm KW - peat carbon stocks KW - peat swamp forests SP - 431 EP - 44 JF - Global change biology JO - Glob Chang Biol VL - 21 IS - 1 N2 - Tropical peatlands cover an estimated 440,000 km2 (~10% of global peatland area) and are significant in the global carbon cycle by storing about 40-90 Gt C in peat. Over the past several decades, tropical peatlands have experienced high rates of deforestation and conversion, which is often associated with lowering the water table and peat burning, releasing large amounts of carbon stored in peat to the atmosphere. We present the first model of long-term carbon accumulation in tropical peatlands by modifying the Holocene Peat Model (HPM), which has been successfully applied to northern temperate peatlands. Tropical HPM (HPMTrop) is a one-dimensional, nonlinear, dynamic model with a monthly time step that simulates peat mass remaining in annual peat cohorts over millennia as a balance between monthly vegetation inputs (litter) and monthly decomposition. Key model parameters were based on published data on vegetation characteristics, including net primary production partitioned into leaves, wood, and roots; and initial litter decomposition rates. HPMTrop outputs are generally consistent with field observations from Indonesia. Simulated long-term carbon accumulation rates for 11,000-year-old inland, and 5000-year-old coastal peatlands were about 0.3 and 0.59 Mg C ha(-1) yr(-1), and the resulting peat carbon stocks at the end of the 11,000-year and 5000-year simulations were 3300 and 2900 Mg C ha(-1), respectively. The simulated carbon loss caused by coastal peat swamp forest conversion into oil palm plantation with periodic burning was 1400 Mg C ha(-1) over 100 years, which is equivalent to ~2900 years of C accumulation in a hectare of coastal peatlands. SN - 1365-2486 UR - https://www.unboundmedicine.com/medline/citation/25044171/Carbon_accumulation_of_tropical_peatlands_over_millennia:_a_modeling_approach_ L2 - https://doi.org/10.1111/gcb.12672 DB - PRIME DP - Unbound Medicine ER -