The Conservation of Ground Water Levels in the Peat Swamp Forest at Ayer Hitam North Forest Reserve, Muar in Johor, Malaysia

Shamsuddin, Siti Aisah; Faidi, Mohd Azahari; Husin, Hyrul Izwan Mohd; Ishak, Mohd Yusoff; Parlan, Ismail Hj.; Marjuni, Habsah

doi:10.4236/jwarp.2021.1312052

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…The AHUSPF is in the northwestern part of Johor, specifically in the Muar district, within the designated Ayer Hitam Utara Forest Reserve area (Figure 1). Encompassing 3,797 ha with a terrain elevation of approximately 31 m a.s.l., this area receives an average annual rainfall of 2,060 mm (Shamsuddin et al, 2021). The local economy in the area is predominantly reliant on agricultural activities.…”

Section: Methodsmentioning

confidence: 99%

A Preliminary Checklist of Fish Species in the Peat Swamp Forest of Ayer Hitam Utara State Park Forest, Johor, Malaysia

Fahmi-Ahmad,

Abdullah Halim,

Ilham-Norhakim

et al. 2024

JTAS

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Ayer Hitam Utara State Park Forest (AHUSPF) is an invaluable sanctuary in Johor, the last remaining intact peat swamp forest reserve that hosts many species unique to this distinctive habitat. Some rapid surveys conducted from 2019 to 2022 recorded 40 species of freshwater fish within AHUSPF. Notably, 11 are stenotopic to acid blackwater, and 12 are stenotopic to acid water, most belonging to the family Osphronemidae and Danionidae. The International Union for Conservation of Nature Red List has designated two species, Encheloclarias curtisoma and Betta persephone, as Endangered, while Betta omega is classified as Critically Endangered. The checklist presented herein was first produced from an inventory study in AHUSPF. The preservation of peat swamp forests in the area is under imminent threat due to the alarming rate of land conversion, forest fires, and the recent potential threat from the red-claw crayfish invasion in the aquatic environment. Hence, continuous monitoring is vital for documenting and updating the conservation status of the fish species. These endeavours will facilitate the development of practical conservation approaches to ensure the long-term sustainability of AHUSPF and its associated species.

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Section: Methodsmentioning

confidence: 99%

A Preliminary Checklist of Fish Species in the Peat Swamp Forest of Ayer Hitam Utara State Park Forest, Johor, Malaysia

Fahmi-Ahmad,

Abdullah Halim,

Ilham-Norhakim

et al. 2024

JTAS

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“…Three levels of groundwater table are considered in this study. Normal groundwater level and raised level 1 were based on reported case [12,13] whereas the raised level 2 was assumed by considering worst case of 1m above the ground surface. The details of the groundwater level are listed in Table 1.…”

Section: Simulated Groundwater Levelmentioning

confidence: 99%

Analytical study on effect of groundwater table and rainfall infiltration on the stability and performance of Muar Trial Embankment by using PLAXIS 2D

Sim,

Ling,

Zaihasra

2024

IOP Conf. Ser.: Earth Environ. Sci.

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Stability and performance of embankment is crucial throughout its service life especially when subjected to various environment factors namely rainfall and fluctuation of groundwater table. The environmental factors are normally site dependent and vary from time to time. Thus, it is critical to assess the stability and performance of embankment when subjected to environmental factors. The geometry and soil profile of well documented Muar Trial embankment was utilized as base model with the aim to determine the effect of water table and rainfall infiltration on its stability. The impact of these factors on embankment stability is investigated numerically via Plaxis 2D. The findings highlight the importance of considering fully coupled flow-deformation analysis in PLAXIS 2D when simulating rainfall infiltration on the embankment slope. Stability of simulated slopes was determined via strength reduction technique which is known as one of the FEM methods to determine slope stability. The findings showed that the short-term safety factor of slope is slightly increased with 0.4 by taking into consideration possibility of water table raise due to poor drainage. However, simulated 1-day rainfall event didn’t significantly affect the stability of embankment slope. Future work should explore consolidation process after drawdown of water table and incorporating long-term rainfall data to validate the practical assessment of embankment stability in engineering scenarios.

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The Conservation of Ground Water Levels in the Peat Swamp Forest at Ayer Hitam North Forest Reserve, Muar in Johor, Malaysia

Cited by 2 publications

References 4 publications

A Preliminary Checklist of Fish Species in the Peat Swamp Forest of Ayer Hitam Utara State Park Forest, Johor, Malaysia

A Preliminary Checklist of Fish Species in the Peat Swamp Forest of Ayer Hitam Utara State Park Forest, Johor, Malaysia

Analytical study on effect of groundwater table and rainfall infiltration on the stability and performance of Muar Trial Embankment by using PLAXIS 2D

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