The effect of the precipitation pattern of the dry season on peat fire occurrence in the Mega Rice Project area, Central Kalimantan, Indonesia

Putra, Erianto Indra; Hiroshi,

doi:10.3759/tropics.19.145

Cited by 51 publications

(50 citation statements)

References 9 publications

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“…The increase of R d /R g was due to smoke emitted through burning biomass and peat fires, especially during El Niño droughts, because precipitation remained low and daytime VPD remained high. Such a dry condition lowers GWL and raises the risk of peat fires (Putra and Hayasaka, 2011). Monthly mean R d /R g was lower than its annual mean of 0.62 for four consecutive months from May to August.…”

Section: Seasonal Variation In Diffuse Fractionmentioning

confidence: 90%

“…According to a precipitation threshold of 100 mm month -1 (e.g. Oldeman et al, 1980), the dry season occurs, on average, for three to five months from June to October (Hirano et al, 2007;Putra and Hayasaka, 2011), owing to the strong influence of the dry southeast monsoon (Aldrian and Sutanto, 2003). An El Niño event prolongs the dry season and raises the risk of large-scale peat fires by lowering groundwater levels (GWL).…”

Section: Site Descriptionmentioning

confidence: 99%

“…An El Niño event prolongs the dry season and raises the risk of large-scale peat fires by lowering groundwater levels (GWL). El Niño droughts occurred in , 2006(Putra and Hayasaka, 2011Hirano et al, 2012).…”

Section: Site Descriptionmentioning

confidence: 99%

“…As a result, a large amount of CO 2 has been steadily emitted through less photosynthesis and more oxidative peat decomposition (Couwenberg et al, 2009;Hooijer et al, 2010;Hirano et al, 2014). The fires are often triggered by lower groundwater levels (Putra et al, 2008;Putra and Hayasaka, 2011) and land clearing (Murdiyarso and Adiningsih, 2007) in the late dry season, especially during El Niño droughts. Large-scale peat fires occurred in Sumatra and Central Kalimantan, Indonesia, in the El Niño years of 1997, 2006(Page et al, 2002van der Werf et al, 2008;Ballhorn et al, 2009;Langner et al, 2009;Tosca et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Environmental dependence and seasonal variation of diffuse solar radiation in tropical peatland

Marpaung

Hirano

2014

J. Agric. Meteorol.

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Changes in cloud cover and atmospheric aerosol loading strongly affect the diffuse proportion of solar radiation (R d /R g ). It has been reported that plant photosynthesis is more efficient under diffuse light conditions, but diffuse radiation (R d ) regimes in tropical peatland frequently subjected to largescale fires are poorly described, and there are few or no site-based datasets to date. Therefore, we continuously measured R d for more than three years at a burnt ex-forest on tropical peatland in Central Kalimantan, Indonesia. Daily R d /R g was significantly related to the clearness index (R g /R o ) with a linear threshold model. The model parameters showed that R d /R g under a clear sky is larger in tropical peatland with a humid climate than in Australia. Using the model, long-term variation in R d /R g for more than 12 years was estimated from R g measured above a nearby forest. As a result, R d /R g showed a seasonal variation with its minimum of 0.51 in June (the transition between the wet and dry seasons) and its maximum of 0.68 in October (the late dry season) on a monthly basis. The decreasing pattern from the late wet season to the early dry season corresponded to decreasing precipitation due to fewer clouds. In contrast, the increasing pattern through the latter half of the dry season was due to shading by smoke emitted through burning biomass and peat fires. In particular, during the El Niño droughts in 2002, 2006 and 2009, the monthly mean R d /R g rose above 0.72, because the ground was densely covered with smoke from large-scale fires.

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Section: Seasonal Variation In Diffuse Fractionmentioning

confidence: 90%

Section: Site Descriptionmentioning

confidence: 99%

Section: Site Descriptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Environmental dependence and seasonal variation of diffuse solar radiation in tropical peatland

Marpaung

Hirano

2014

J. Agric. Meteorol.

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“…Langner and Siegert (2009) said that fire-affected area in El Niño conditions was usually three times larger than in normal weather conditions. During El Niño years, which are usually defined using Sea Surface Temperature (SST) anomaly data, rainfall intensity is affected, causing a prolonged drought period during the dry season in Central Kalimantan (Putra & Hayasaka 2011). The relationship between SST and the probability of fire occurrence was also described by Manzo-Delgado et al (2004).…”

Section: Introductionmentioning

confidence: 99%

Fire Regime in a Peatland Restoration Area: Lesson from Central Kalimantan

Larasati

Kanzaki

Purwanto

et al. 2019

Jurnal Ilmu Kehutanan

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KEY WORDS peatland restoration concession fire regime GIS remote sensing KATA KUNCI lahan gambut area restorasi rezim kebakaran GIS penginderaan jauh ABSTRACTPeat fires have caused carbon emissions and damage to local and regional communities in Indonesia. An effective fire prevention system is required for mitigating climate change and enabling sustainable development of peatlands. This study examined the fire regime in a peatland restoration area in Central Kalimantan in order to assist the establishment of a fire prevention system. The fire regime was analysed using spatial-temporal analysis, land cover change mapping, and logistic regression analysis. Spatial-temporal analysis was done using monthly Niño 3.4 sea surface temperature anomalies, daily rainfall, and MODIS Active Fire (MCD14DL) hotspots from 2006 to 2015. Land cover change was mapped using Landsat imagery from2014, 2015 and 2016. Logistic regression analysis was conducted to identify significant factors that increase fire risk. The temporal analysis showed that the strongest El Niño occurred in 2015, when the region experienced a 140days drought period. The highest number of hotspots was also observed in this year, with hotspots concentrated in the latter half of drought period. Moreover, spatial analysis using Kernel Density Estimation (KDE) showed fire recur in degraded areas. The logistic regression analysis used topographic and proximity factors, land cover classes, and soil types as independent variables. It showed that fire in 2014 and 2015 was associated with several land cover classes and was related to historical fire occurrence areas based on KDE results. Several area of peatland forests burned in 2015 and occurred at the forest edge areas located near cultivated or degraded land (e.g. shrubland) and oil palm plantations. Based on the results, the fire regime in the study area is characterized by fires that occurring/recurring in relation to climatic conditions, especially drought periods, and are typically located in cultivated or degraded land cover classes. These parameters should be considered in developing a fire prevention system in the restoration area. INTISARIKebakaran di lahan gambut menyebabkan emisi karbon dan kerusakan sistem kehidupan masyarakat lokal dan regional. Sistem pencegahan kebakaran yang efektif diperlukan untuk mitigasi perubahan iklim serta mendorong pembangunan lahan dan hutan yang lestari di kawasan gambut. Studi ini meneliti tentang Larasati et. al / Jurnal Ilmu Kehutanan 13 (2019) 210-226 rezim kebakaran hutan dan lahan di suatu kawasan restorasi gambut di Kalimantan Tengah. Rezim kebakaran hutan dan lahan dianalisis menggunakan analisis spasial-temporal, perubahan tutupan lahan, dan regresi logistik. Analisis spasial-temporal menggunakan parameter nilai rata-rata sea surface temperature (SST) bulanan, curah hujan harian, dan hotspot dari MODIS Active Fire (MCD14DL) tahun 2006-2016. Perubahan tutupan lahan dipetakan dengan analisis citra Landsat tahun 2014, 2015 dan 2016. Regresi logistik digunakan untuk ...

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Modelling the performance of bunds and ditch dams in the hydrological restoration of tropical peatlands

Putra

Baird

Holden

2022

Hydrological Processes

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Many tropical peatlands are subjected to artificial drainage that leads to degradation.Hence, hydrological restoration has recently been prioritized. Nevertheless, as field monitoring data are limited, little is known about how restoration measures, such as ditch dams and bunds, can regulate tropical peatland water tables. We used a hydrodynamic model -DigiBog_Hydroto simulate the effectiveness of ditch dams and bunds across three El Niño-Southern Oscillation (ENSO) scenarios, which are El Niño, La Niña and Neutral, in three typical sites. The sites were moderately degraded (Mod-Dgr) and severely degraded (Sev-Dgr) peatland plots (each 0.2 km 2 ), representing typical peatland conditions in Sebangau National Park, Kalimantan, Indonesia. Our fine-scale (1 m Â 1 m spatial resolution) modelling revealed that in the dry season of any ENSO scenario, the significant effects of ditch-dams alone on peatland water-level were limited to lateral distances of 26 m (in Mod-Dgr) and 12 m (in Sev-Dgr) from the ditch. In the dry season of an El Niño year, the combination of ditch dams and bunds helped maintain water levels up to 72 cm (in Mod-Dgr) and 69 cm (in Sev-Dgr) higher than in the no-restoration condition. During the extremedry period of an El Niño year, the bunds reduced the number of days when the water table was deeper than 40 cm in Mod-Dgr and in Sev-Dgr by 50% and 73%, respectively. We suggest that bunds used in combination with ditch dams are a practical restoration measure for tropical peatlands, providing critical extra water storage and helping maintain water tables near the peatland surface in dry periods. We also demonstrate how fine-scale hydrodynamic modelling is beneficial for planning and assessment of restoration measures in tropical peatlands.

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The effect of the precipitation pattern of the dry season on peat fire occurrence in the Mega Rice Project area, Central Kalimantan, Indonesia

Cited by 51 publications

References 9 publications

Environmental dependence and seasonal variation of diffuse solar radiation in tropical peatland

Environmental dependence and seasonal variation of diffuse solar radiation in tropical peatland

Fire Regime in a Peatland Restoration Area: Lesson from Central Kalimantan

Modelling the performance of bunds and ditch dams in the hydrological restoration of tropical peatlands

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