Forest and Land Fires Are Mainly Associated with Deforestation in Riau Province, Indonesia

Adrianto, Hari Agung; Spracklen, Dominick V.; Arnold, S. R.; Sitanggang, Imas Sukaesih; Syaufina, Lailan

doi:10.3390/rs12010003

Cited by 46 publications

(43 citation statements)

References 41 publications

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“…Humid tropical forests are generally resistant to burning, but the transition from primary to secondary forests, shrubs, pastures, and agricultural plantations increases the frequency of fires (da Silva et al 2018;Adrianto et al 2020). Not only natural wildfires but also intentional burning to remove weeds for agriculture may trigger extensive fires.…”

Section: Wildfire and Intentional Burningmentioning

confidence: 99%

The impact of tropical land-use change on downstream riverine and estuarine water properties and biogeochemical cycles: a review

2021

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Tropical primary forests have been disappearing quickly to make use of the land for commercial purposes. Land-use change has an impact on downstream aquatic processes, but those impacts have mainly been studied in temperate climate regions. The present article reviews the impacts of various tropical land-use changes caused by human activities on downstream riverine and estuarine water properties and biogeochemical cycles, focusing especially on the behaviors of nitrogen (N) and phosphorus (P). Logging of tropical primary forests, subsequent establishment of pasture lands, and occasional wildfire or intentional burning have decreased terrestrial N fixation and increased the discharge of P combined with soils, which has lowered the N:P ratio of dissolved inorganic nutrients in the adjacent stream waters and downstream rivers. Agricultural fertilizers and aquacultural practices basically cause nutrient enrichment in downstream riverine and estuarine waters, changing the N:P ratio depending on the source. Finally, urbanization causes eutrophication in many tropical estuaries, where a halocline forms easily because of a warm temperature throughout the year and the water at the bottom of the estuary tends to become hypoxic or anoxic. Overall, the impact of land-use change on aquatic processes may be more serious in tropical regions than in temperate or cold climate regions because of (1) a higher biomass and nutrient stock in original tropical forests; (2) higher precipitation, more frequent episodic flooding, and warmer temperatures in tropical regions; and (3) certain practices that are rapidly expanding in tropical regions such as land-based aquaculture. Various land-use changes are causing downstream nutrient enrichment or disturbance of the nutrient balance at tropical land-sea interfaces, and the overall N:P ratios in the aquatic ecosystem seem to be declining. Nonetheless, if proper management is conducted and the discharge of nutrients and soils ceases, tropical aquatic systems may have the potential to recover faster than those in other climate regions because of their abundant precipitation and warm temperature. Long-term monitoring and more attention to elemental stoichiometry are important areas for future research.

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Section: Wildfire and Intentional Burningmentioning

confidence: 99%

The impact of tropical land-use change on downstream riverine and estuarine water properties and biogeochemical cycles: a review

2021

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“…Short-lived local fires can also occur out of these periods [10] [11]. In Indonesia, fires were detected in rubber, wood fiber and oil-palm plantations, forested areas and shrubland [10,11,68,69]. [10] reported that 16.6% of the fires detected between 2012 and 2015 on Sumatra and Kalimantan were located within legal agro-industrial oil-palm concessions.…”

Section: Impact Of Fire On Si Release From Topsoils and Littermentioning

confidence: 99%

“…[10] reported that 16.6% of the fires detected between 2012 and 2015 on Sumatra and Kalimantan were located within legal agro-industrial oil-palm concessions. Adrianto et al (2019) [69] showed that in Riau Province on Sumatra, Indonesia, most fires occur when forest or shrubland is converted to oil palm, wood fibre and logging plantations. They showed, that in regions that did not change land-cover a total area of 0.017 km 2 y −1 was affected by fire in plantations over the period 2002 -2016 compared to shrubland (0.067 km 2 y −1 ) and primary wet and dry forests (0.001 km 2 y −1 ) [69].…”

Section: Impact Of Fire On Si Release From Topsoils and Littermentioning

confidence: 99%

“…Adrianto et al (2019) [69] showed that in Riau Province on Sumatra, Indonesia, most fires occur when forest or shrubland is converted to oil palm, wood fibre and logging plantations. They showed, that in regions that did not change land-cover a total area of 0.017 km 2 y −1 was affected by fire in plantations over the period 2002 -2016 compared to shrubland (0.067 km 2 y −1 ) and primary wet and dry forests (0.001 km 2 y −1 ) [69]. Marlier et al (2015) [68] reported that in 2006 most of the plantation-related fire emissions on Kalimantan came from oil-palm concessions (33% of the area and 67% of the emissions of fires).…”

Section: Impact Of Fire On Si Release From Topsoils and Littermentioning

confidence: 99%

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Transformation of Lowland Rainforest into Oil-palm Plantations and use of Fire alter Topsoil and Litter Silicon Pools and Fluxes

Lühe

Pauli

Greenshields

et al. 2020

Silicon

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The effects of land use and fire on ecosystem silicon (Si) cycling has been largely disregarded so far. We investigated the impacts of land use and fire on Si release from topsoils and litter of lowland rainforest and oil-palm plantations in Jambi Province, Indonesia. Lower concentrations of Si in amorphous silica (ASi) were found in oil-palm plantation topsoils (2.8 ± 0.7 mg g− 1) compared to rainforest (3.5 ± 0.8 mg g− 1). Higher total Si concentrations were detected in litter from oil-palm frond piles (22.8 ± 4.6 mg g− 1) compared to rainforest litter (12.7 ± 2.2 mg g− 1). To test the impact of fire, materials were burned at 300 °C and 500 °C and were shaken with untreated samples in simulated rainwater for 28 h. Untreated oil-palm topsoils showed a significantly lower Si release (p≤ 0.05) compared to rainforest. The fire treatments resulted in an increased Si release into simulated rainwater. Si release from oil-palm topsoils and litter increased by a factor of 6 and 9 (500 °C), respectively, and Si release from rainforest topsoils and litter by a factor of 3 and 9 (500 °C). Differences between land use were related to initial ASi and litter Si concentrations, and to losses of soil organic matter during burning. We conclude that transformation of rainforest into oil palm plantations could be an important and immediate Si source after a fire event but may indirectly lead to a decrease in the long-term Si availability to plants.

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“…Another worrying fact is the degradation of forest-associated ecosystem, such as the peatland ecosystems of the Amazon, concentrated in Western and Central Amazon, mainly in Peru and Brazil (Román-Cuesta et al 2011, Lähteenoja et al 2012, Lähteenoja et al 2013, Draper et al 2014. Increased deforestation due to land use make these wet ecosystems susceptible to fire (Adrianto et al 2020). The peatlands comprise ecosystems that concentrate large amounts of carbon reserves, storing 1-8 PgC (1 Pg = 1 billion tons), in an area of approximately 35,000 km 2 (Lähteenoja et al 2012).…”

mentioning

confidence: 99%

Amazon Peatlands in Peril: A Warning for Global Warming

Dias

Tófoli²,

Lopes

et al. 2021

Oecol. Aust.

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The Amazon rainforest has been the target of several attacks, such as the massive increase in deforestation and fire outbreaks. The Amazon biome is not only composed of forest ecosystems, but also of an important carbon stock system called Peatland, which contains ca. 1 to 8 billion tons of carbon in its plants and soil. If burned, this peculiar ecosystem is likely to release tons of greenhouse gases, which may aggravate global warming. Therefore, our objective is to alert and anticipate problems associated with deforestation and fires in Peatland that, if not contained, may difficult global warming controlling, and the achievement of goals set in the Paris Agreement (which Brazil is a signatory).

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Forest and Land Fires Are Mainly Associated with Deforestation in Riau Province, Indonesia

Cited by 46 publications

References 41 publications

The impact of tropical land-use change on downstream riverine and estuarine water properties and biogeochemical cycles: a review

The impact of tropical land-use change on downstream riverine and estuarine water properties and biogeochemical cycles: a review

Transformation of Lowland Rainforest into Oil-palm Plantations and use of Fire alter Topsoil and Litter Silicon Pools and Fluxes

Amazon Peatlands in Peril: A Warning for Global Warming

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