KEHILANGAN KARBON AKIBAT DRAINASE DAN DEGRADASI  LAHAN GAMBUT TROPIKA DI TRUMON DAN SINGKIL ACEH (Carbon Loss from Drainaged and Degradation of Tropical Peatland in Trumon and Singkil, Aceh)

Aswandi, Aswandi; Sadono, Ronggo; Supriyo, Haryono; Hartono, Hartono

doi:10.22146/jml.18807

Cited by 4 publications

(3 citation statements)

References 2 publications

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“…Deeper subsidence was found at the location near to drainage canal (25 m), while shallower subsidence was found at the location further away from the canal (100 m). This finding is consistent with a study by Aswandi et al (2016) which stated that the highest subsidence rate existed on the nearest location from the canal. They reported that the depletion of peat surface level may reach 4.9…”

Section: Peat Subsidencesupporting

confidence: 93%

“…Furthermore, the groundwater level formed the dome shape (Figure 3). These findings confirmed the previous studies by Aswandi, Sadono, Supriyo, and Hartono (2016) and (Wakhid, Nurzakiah, and Zainudin, 2019) which reported a similar phenomenon. It has been suggested that the phenomenon seems due to water nature, which flows to a -197,4 -191,4 -178,6 -152,8 -196 Typically, groundwater level should be maintained on below the roots zone, in order to provide adequate water content and air, by controlling water level in tertiary channels (Wangsadipura, 2005).…”

Section: Introductionsupporting

confidence: 93%

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The Characteristic of Groundwater Table and Subsidence of Degraded Peatland in Ex ICCTF Plot Central Kalimantan

Firmansyah

Nugroho

2020

Agritech

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Degraded peatlands typically have been cultivated by communities for agriculture. Ex ICCTF plot in Jabiren is considered as a degraded peatland since the area has been cultivated and drained for smallholder plantation. This study aimed to characterise the groundwater level and peat subsidence periodically over seven months of observation. It has been found that the groundwater level fluctuated from 50 cm to 150 cm below the peat surface, implying the deterioration of peat ecosystem. Based on the transect observation, the groundwater table seems to form a dome shape with the deeper level existed adjacent to the canal. The average peat subsidence was around 27 to 39 cm in cumulative since the subsidence stick installation. However, in the range of ten-month of observation, the peat subsidence was around 8.5 cm. The subsidence was higher on the location adjacent to the canal (25 m) compared to the farther one (100 m). The subsidence also fluctuated, notably in the wet season, indicating the influence of rain event to peat subsidence. Rewetting peatland was likely to result in reducing peat subsidence suggesting the importance of water management in peatland to recover degraded peatland.

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Section: Peat Subsidencesupporting

confidence: 93%

Section: Introductionsupporting

confidence: 93%

The Characteristic of Groundwater Table and Subsidence of Degraded Peatland in Ex ICCTF Plot Central Kalimantan

Firmansyah

Nugroho

2020

Agritech

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“…Until 2009, 10.77 million ha or 51% of Indonesia's peatland area had experienced deforestation and 2 million ha had been damaged during the period 2000 to 2009. 1297 (2024) 012092 IOP Publishing doi:10.1088/1755-1315/1297/1/012092 2 [6]. As a result of changes in peatlands, such as changes in peatland characteristics and a decrease in peat depth, it is necessary to update data such as peat depth distribution data.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Spatial distribution of Peatland Depth in Keub Village

Farida,

Wahyudi,

Basri

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Peat is an ecosystem that is formed due to biomass production that exceeds the decomposition process. The area of peat land in Aceh Province reaches 338,164 ha. Improper use of peatlands results in peatland degradation so that the thickness and depth of the peat soil decreases. This research aims to determine the map of changes in the distribution of peat depth classes and determine changes in the peat ecosystem classification map in Keub Village by comparing the peat depth map published by the Ministry of Environment and Forestry in 2019 with interpolation results using the inverse distance weight method. The results of this research showed that there was a change in the peat depth class and the area of distribution of the peat depth class between the peat depth class map published by the Ministry of Environment and Forestry and the interpolation results in Keub Village. Based on a comparison of the KLHK peat depth map with the interpolated map, it was also found that there was a change in the area of protected functional areas in the form of an increase in the number of areas.

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Application of Spatial Model for Potential Flood Hazard Susceptibility at Trumon Area, South Aceh Regency of Indonesia

Meilianda,

Alfian,

Nurnalisa

et al. 2023

E3S Web Conf.

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Indonesia is currently embarking on a transition from a ‘risk retention’ to a ‘risk transfer’ strategy for managing the impact of disaster events. The risk transfer strategy, i.e., insurance policy and protection, requires high-level preliminary risk assessment, which requires detailed attention and analysis in producing hazard mapping. Improvement of methods requires, preferably, the non-deterministic index method in a GIS environment, to produce reasonably good quality hazard susceptibility mapping. Recently, a new spatial method has been developed to improve the parameterization of the spatial analysis method for watershed-scale flood hazard susceptibility mapping. Those parameters, which include the Topographic Wetness Index (TWI), Rainfall Intensity (R), Distance to rivers (D), Altitude (A), Land use (L), and Soil type (S), configure the proposed method called “TWIRDALS”. The present study aims at testing the spatial model TWIRDALS watershed at the Trumon Area, South Aceh Regency, Sumatra Island, Indonesia. Historical flood events associated with the watershed have escalated over the last 25 years in the Trumon watershed. Several steps of geospatial analysis in this study use multi-temporal satellite imagery from 1995 to 2021 to identify area changes in land use rendering over the watershed. The satellite imagery interpretation reveals a remarkable land use change, particularly of the previously 2130 ha of peatland forest observed in 1996, to become a 10,000 ha palm oil plantation in 2021. This current situation has made the Trumon area the recipient of more frequent floods, i.e., from a five-year return period to an annual event.

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KEHILANGAN KARBON AKIBAT DRAINASE DAN DEGRADASI LAHAN GAMBUT TROPIKA DI TRUMON DAN SINGKIL ACEH (Carbon Loss from Drainaged and Degradation of Tropical Peatland in Trumon and Singkil, Aceh)

Cited by 4 publications

References 2 publications

The Characteristic of Groundwater Table and Subsidence of Degraded Peatland in Ex ICCTF Plot Central Kalimantan

The Characteristic of Groundwater Table and Subsidence of Degraded Peatland in Ex ICCTF Plot Central Kalimantan

Analysis of Spatial distribution of Peatland Depth in Keub Village

Application of Spatial Model for Potential Flood Hazard Susceptibility at Trumon Area, South Aceh Regency of Indonesia

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