Exploration of the importance of physical properties of Indonesian peatlands to assess critical groundwater table depths, associated drought and fire hazard

Taufik, Muh; Veldhuizen, A.A.; Lanen, H.A.J. van

doi:10.1016/j.geoderma.2019.04.001

Cited by 50 publications

(50 citation statements)

References 31 publications

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“…Baqiroh [26] states that the government gave obligations to all permit holders (industrial forest concessions and plantations) to secure the peat dome peak, permitting the utilization of areas outside the peat dome area as long as water management is maintained. Policymakers must carry out long-term monitoring, such as rewetting, revegetation, and revitalization programs for Indonesian peatlands, which will ultimately contribute to sustainable livelihoods for local communities and reduce impacts on regional climate [16].…”

Section: Peatland Utilizationmentioning

confidence: 99%

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Utilization of Peatlands Based on Local Wisdom and Community Welfare in Riau Province, Indonesia

Syahza¹,

Suwondo²,

Bakce³

et al. 2020

IJSDP

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The majority of regions in Riau Province are coastal areas and many communities live on land that is dominated by peat. Peat ecosystems have unique characteristics, as they are classified as wetland areas, while also possessing regions of terrestrial land. Poor maintenance of these ecosystems can cause a variety of issues such as forest fires, drought, flooding, biodiversity loss, increasing emissions, climate change, and social community changes. The purpose of this paper is to formulate a model of peatland utilization based on local wisdom and community welfare, in an effort to support the sustainable management of peat ecosystems in Riau Province. The main commodities of the coastal community are agriculture, coconut, rubber, oil palm, sago, coffee, cocoa, areca nut. Therefore, an understanding of the use of peatlands is needed. This is to prevent damage to the peatland ecosystem, maintain biodiversity, store carbon, produce oxygen, and manage water. Policies and strategies for managing the peat ecosystem are carried out through the development of socio-economic and community culture to realize people's welfare based on local wisdom. The management and use of peatlands have contributed to the economy, even as the main source of livelihood for coastal communities. Utilization of peatlands based on local wisdom can maintain a sustainable peat ecosystem.

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Section: Peatland Utilizationmentioning

confidence: 99%

“…Research related to peatland management has been widely carried out and includes studies [16][17][18]. Within peat ecosystems, many community activities are carried out, especially those that are related to the social economy.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Peatlands Based on Local Wisdom and Community Welfare in Riau Province, Indonesia

Syahza¹,

Suwondo²,

Bakce³

et al. 2020

IJSDP

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“…The activities of drainage and forest clearing threaten peatland stability and make them susceptible to fire [4]. People also cleared peatland areas with the most extensive cleared peatlands found in Riau (≈450,000 ha), Central Kalimantan (≈400,000 ha), and South Sumatra (≈320,000 ha) [5].…”

Section: Introductionmentioning

confidence: 99%

“…The declining of WT depth will drive many negative processes of peat, for example, carbon decomposition, the vulnerability toward fire, increase of methane (CH4) production, etc. [5][6][7][8]. In principle, decreasing WT depth contributes to greenhouse gas emissions.…”

Section: Introductionmentioning

confidence: 99%

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Application of SAR Interferometry Using ALOS-2 PALSAR-2 Data as Precise Method to Identify Degraded Peatland Areas Related to Forest Fire

Widodo

Sulaiman²,

Awaluddin³

et al. 2019

Geosciences

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Deforestation in peatland areas such as Kalimantan, Indonesia has been going on for decades. The deforestation has indirectly increased peatlands to become degraded and flammable. The Synthetic Aperture Radar (SAR) interferometry approach for identification of degraded peatlands can be performed using ALOS-2 PALSAR-2 data by converting land deformation data generated from SAR interferometry analysis into water table (WT) depth data using Wosten models. Peatlands with WT depth conditions of more than 40 cm are classified as degraded peatlands which are flammable. By using fire data from previous studies, this research confirms that identification of degraded peatlands using SAR interferometry approach by ALOS-2 PALSAR-2 is more reliable with high precision related to forest fires, with a precision level of 88% compared to 5% precision level using the WT depth monitoring system that has been installed in Central Kalimantan. The highest wavelength of ALOS-2 PALSAR-2 (L-Band) data can resolve the limitation due to temporal and volumetric decorrelation, compared to C-Band and X-Band satellite data. The combination methods of SAR interferometry approach and the real-time WT depth monitoring system to identify degraded peatlands can be more efficient, faster, and accurate. The advantage of this research result shows that SAR interferometry analysis can reach blank spot areas that are not covered by the observation station of WT depth monitoring system. It also gives a benefit as a guide to select precise locations of observation stations related to degraded peatland and forest fire.

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Tropical peatland hydrology simulated with a global land surface model

Apers¹,

Lannoy²,

Baird³

et al. 2021

Preprint

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Tropical peatlands are among the most carbon-dense ecosystems on Earth, and their water storage dynamics strongly control these carbon stocks. The hydrological functioning of tropical peatlands differs from that of northern peatlands, which has not yet been accounted for in global land surface models (LSMs). Here, we integrated tropical peat-specific hydrology modules into a global LSM for the first time, by utilizing the peatland-specific model structure adaptation (PEATCLSM) of the NASA Catchment Land Surface Model (CLSM). We developed literature-based parameter sets for natural (PEATCLSM Trop,Nat ) and drained (PEATCLSM Trop,Drain ) tropical peatlands. Simulations with PEATCLSM Trop,Nat were compared against those with the default CLSM version and the northern version of PEATCLSM (PEATCLSM North,Nat ) with tropical vegetation input. All simulations were forced with global meteorological reanalysis input data for the major tropical peatland regions in Central and South America, the Congo Basin, and Southeast Asia. The evaluation against a unique and extensive data set of in situ water level and eddy covariance-derived evapotranspiration showed an overall improvement in bias and correlation compared to the default CLSM version. Over Southeast Asia, an additional simulation with PEATCLSM Trop,Drain was run to address the large fraction of drained tropical peatlands in this region. PEATCLSM Trop,Drain outperformed CLSM, PEATCLSM North,Nat , and PEATCLSM Trop,Nat over drained sites. Despite the overall improvements of PEATCLSM Trop,Nat over CLSM, there are strong differences in performance between the three study regions. We attribute these performance differences to regional differences in accuracy of meteorological forcing data, and differences in peatland hydrologic response that are not yet captured by our model. Plain Language SummaryTropical peatlands are wetlands in which plant material accumulates under waterlogged conditions and develops into a dense organic soil layer. Disturbance of their selfregulating hydrology by external factors such as artificial drainage, land use change, and climate change can quickly convert these immense carbon stocks into strong sources of greenhouse gases. Including the hydrology of tropical peatlands into global Earth system models allows us to understand the impact of such external disturbances. We developed the first hydrology modules for natural and drained tropical peatlands to plug into the NASA Goddard Earth Observing System modeling framework. Our results display strong regional differences, and indicate that the accuracy of our model is limited by rainfall data quality and by our understanding of how peatland hydrology differs across the three regions that contain the major tropical peatland areas (Central and South America, the Congo Basin, and Southeast Asia). Nonetheless, simulations

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Exploration of the importance of physical properties of Indonesian peatlands to assess critical groundwater table depths, associated drought and fire hazard

Cited by 50 publications

References 31 publications

Utilization of Peatlands Based on Local Wisdom and Community Welfare in Riau Province, Indonesia

Utilization of Peatlands Based on Local Wisdom and Community Welfare in Riau Province, Indonesia

Application of SAR Interferometry Using ALOS-2 PALSAR-2 Data as Precise Method to Identify Degraded Peatland Areas Related to Forest Fire

Tropical peatland hydrology simulated with a global land surface model

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