Trans-boundary haze events in Southeast Asia are associated with large forest and peatland fires in Indonesia. These episodes of extreme air pollution usually occur during drought years induced by climate anomalies from the Pacific (El Niño Southern Oscillation) and Indian Oceans (Indian Ocean Di...
Gaveau, D.L.A.
,
Salim, Mohammad A.
,
Hergoualc’h, Kristell
,
Locatelli, Bruno
,
Sloan, Sean
,
Wooster, Martin
,
Marlier, Miriam E.
,
Molidena, Elis
,
Yaen, Husana
,
DeFries, Ruth
,
Verchot, Louis V.
,
Murdiyarso, Daniel
,
Nasi, Robert
,
Holmgren, Peter
,
Sheil, Douglas
,
[Major atmospheric emissions from peat fires in Southeast Asia during non-drought years: evidence from the 2013 Sumatran fires]
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Major atmospheric emissions from peat fires in Southeast Asia during non-drought years: evidence from the 2013 Sumatran fires
Currently, 25% of all deforestation in insular Southeast Asia occurs in peat swamp forests. When peatlands are deforested, drainage ditches are often constructed to lower the ground-water level, which may result in changes in peat methane (CH4) fluxes. Our aim was to evaluate how tropical peat sw...
Hergoualc’h, Kristell
,
Verchot, Louis V.
,
[Changes in soil CH4 fluxes from the conversion of tropical peat swamp forests: a meta-analysis]
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Changes in soil CH4 fluxes from the conversion of tropical peat swamp forests: a meta-analysis
Tropical peatlands are known not only for their high, area-based, carbon emissions in response to land-use change but also as hot spots of debate about associated data uncertainties. Perspectives are still evolving on factors underlying the variability and uncertainty. Debate includes the ways of...
Noordwijk, Meine van
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Matthews R
,
Agus, F.
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Farmer J
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Verchot, Louis V.
,
Hergoualc’h, Kristell
,
Persch S
,
Tata HL
,
Lusiana B
,
Widayati A
,
Dewi, S.
,
[Mud, muddle and models in the knowledge value chain to action on tropical peatland issues]
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Mud, muddle and models in the knowledge value chain to action on tropical peatland issues
The REDD-ALERT (Reducing Emissions from Deforestation and Degradation from Alternative Land Uses in the Rainforests of the Tropics) project started in 2009 and finished in 2012, and had the aim of evaluating mechanisms that translate international-level agreements into instruments that would help...
Matthews RB
,
Noordwijk, Meine van
,
Lambin E
,
Meyfroidt P
,
Gupta J
,
Verchot, Louis V.
,
Hergoualc’h, Kristell
,
Veldkamp, E.
,
[Implementing REDD+ (Reducing Emissions from Deforestation and Degradation): evidence on governance, evaluation and impacts from the REDD-ALERT project]
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Implementing REDD+ (Reducing Emissions from Deforestation and Degradation): evidence on governance, evaluation and impacts from the REDD-ALERT project
To assist countries to reduce emissions from deforestation and forest degradation, the United Nations has introduced the REDD+ mechanism. This performance-based incentive mechanism requires accurate quantification of carbon stock and emissions. However, currently there are limited existing local ...
Manuri S
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Brack, C.
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Nugroho NP
,
Hergoualc’h, Kristell
,
Novita N
,
Dotzauer, H.
,
Verchot, Louis V.
,
Putra CAS
,
Widyasari E
,
[Tree biomass equations for tropical peat swamp forest ecosystems in Indonesia]
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Tree biomass equations for tropical peat swamp forest ecosystems in Indonesia
Tropical peat swamp forests, which are predominantly located in Southeast Asia (SEA) and play a prominent role as a global carbon store, are being intensively degraded and converted to agricultural lands and tree plantations. For national inventories, updated estimates of peat emissions of greenh...
Hergoualc’h, Kristell
,
Verchot, Louis V.
,
[Greenhouse gas emission factors for land use and land-use change in Southeast Asian peatlands]
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Greenhouse gas emission factors for land use and land-use change in Southeast Asian peatlands
We test the applicability of two different methods for quantifying carbon (C) stocks in five tropical peat sites in Sumatra, Indonesia; two in an intact peat swamp forest, one in a logged forest and two in an oil palm plantation. Elemental analysis is used to quantify C contents and stocks in all...
Farmer J
,
Matthews R
,
Smith, Pete
,
Langan C
,
Hergoualc’h, Kristell
,
Verchot, Louis V.
,
Smith, J.U.
,
[Comparison of methods for quantifying soil carbon in tropical peats]
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Comparison of methods for quantifying soil carbon in tropical peats
Heterotrophic respiration is a major component of the soil C balance however we critically lack understanding of its variation upon conversion of peat swamp forests in tropical areas. Our research focused on a primary peat swamp forest and two oil palm plantations aged 1 (OP2012) and 6 years (OP2...
Hergoualc’h, Kristell
,
Hendry, Dede T.
,
Murdiyarso, Daniel
,
Verchot, Louis V.
,
[Total and heterotrophic soil respiration in a swamp forest and oil palm plantations on peat in Central Kalimantan, Indonesia]
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Total and heterotrophic soil respiration in a swamp forest and oil palm plantations on peat in Central Kalimantan, Indonesia
Tropical peatlands in the Peruvian Amazon exhibit high densities of Mauritia flexuosa palms, which are often cut instead of being climbed for collecting their fruits. This is an important type of forest degradation in the region that could lead to changes in the structure and composition of the f...
Lent, Jeffrey van
,
Hergoualc’h, Kristell
,
Verchot, Louis V.
,
Oenema, Oene
,
Groenigen, Jan Willem van
,
[Greenhouse gas emissions along a peat swamp forest degradation gradient in the Peruvian Amazon: soil moisture and palm roots effects]
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Greenhouse gas emissions along a peat swamp forest degradation gradient in the Peruvian Amazon: soil moisture and palm roots effects
Peru has the fourth largest area of peatlands in the Tropics. Its most representative land cover on peat is a Mauritia flexuosa dominated palm swamp (thereafter called dense PS), which has been under human pressure over decades due to the high demand for the M. flexuosa fruit often collected by c...
Hergoualc’h, Kristell
,
Gutiérrez Vélez, Victor Hugo
,
Menton, Mary
,
Verchot, Louis V.
,
[Characterizing degradation of palm swamp peatlands from space and on the ground: An exploratory study in the Peruvian Amazon]
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Characterizing degradation of palm swamp peatlands from space and on the ground: An exploratory study in the Peruvian Amazon