Resistivity-Chemistry Integrated Approaches for Investigating Groundwater Salinity of Water Supply and Agricultural Activity at Island Coastal Area

Baharuddin, Mohamad Faizal Tajul; Masirin, Mohd Idrus Mohd; Hazreek, Z A M; Azman, Mohammad Airin; Madun, Aziman

doi:10.1088/1742-6596/995/1/012093

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…Coastal threats and changes (e.g., SLR, storm surges, coastal erosion, land subsidence) may occur simultaneously and/or have knock-on effects leading to the occurrence or acceleration of other pressures, usually intensified through urbanisation and development. The onset of coastal pressures may, however, also be triggered inland such as in the case of coastal erosion caused by dam construction and the resultant changes in sediment source and coastal sediment dynamics (e.g., Huang and Jin, 2018 and references therein;Hzami et al, 2021) Coastal erosion may accelerate land losses beyond those caused by SLR, or erosion may amplify the effects of SLR, causing groundwater salinisation and reductions in groundwater recharge (Baharuddin et al, 2018;Chesnaux et al, 2021). This is of further concern since the decrease in groundwater recharge https://doi.org/10.1017/cft.2022.11 Published online by Cambridge University Press may be a more important issue than SLR in flat low-lying coastal areas (Parisi et al, 2018).…”

Section: Groundwater Use and Risks In The Coastal Zonementioning

confidence: 99%

Coastal urban reliance on groundwater during drought cycles: Opportunities, threats and state of knowledge

Dodd¹,

Rishworth²

2023

Camb. prisms Coast. futures

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Urbanisation and population growth are concentrated at the coast with approximately 40% of the human population living within 100 km of the ocean.The freshwater systems on which coastal urban areas rely are vulnerable to bidirectional pressures including coastal processes such as sea-level rise and coastal erosion and land use changes and pollution occurring in inland catchment areas. These threats are likely to be amplified in the future under climate change conditions and more frequent and severe drought periods are expected to jeopardise already constrained water supply systems. Groundwater is used as a freshwater resource globally and is especially important as conjunctive supply during drought periods due to perceived buffer capabilities.However, several threats impact coastal aquifers due to over-abstraction, such as salinisation, land subsidence and groundwater flooding and often these

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Section: Groundwater Use and Risks In The Coastal Zonementioning

confidence: 99%

Coastal urban reliance on groundwater during drought cycles: Opportunities, threats and state of knowledge

Dodd¹,

Rishworth²

2023

Camb. prisms Coast. futures

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“…This condition is associated with a low value of EC, while [24] proved that the supplementation of calcium, copper, and salicylic acid in oil palm seedlings inoculated with G. boninense inoculum was effective in suppressing the disease. Meanwhile, according to [25], for a plantation application in Malaysia, a non-saline soil (below 0.2 S/m) is most suitably used to plant the oil palm. A high salinity with a high water retention capacity is also associated with a higher BSR incidence of the mature trees in a plantation [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Temporal Changes Analysis of Soil Properties Associated with Ganoderma boninense Pat. Infection in Oil Palm Seedlings in a Controlled Environment

et al. 2021

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Basal stem rot (BSR) disease of oil palm (Elaeis guineensis Jacq.) spreads through the contact of the plant roots with Ganoderma boninense (G. boninense) Pat. inoculum in the soil. The soil properties can be altered by growing seedlings with or without G. boninense inoculum. In the early stage of infection, the symptoms are difficult to detect. Therefore, an understanding of the environmental soil conditions of the plant is crucial in order to indicate the presence of the fungus. This paper presents an analysis of the temporal changes of the soil properties associated with the G. boninense infection in oil palm seedlings. A total of 40 seedlings aged five months were used in the study, comprising 20 inoculated (infected seedlings: IS) and 20 control (healthy seedlings: HS) seedlings. The seedlings were grown in a greenhouse for six months (24 weeks) under a controlled environmental temperature and humidity. The data of the soil moisture content (MC in %), electrical conductivity (EC in µS/cm), and temperature (T in °C) for each seedling were collected daily using three MEC10 soil sensors every hour and then transferred to the ThingSpeak cloud using a 3G Internet connection. Based on the results, the mean MC and EC showed a decreasing trend, while the mean T showed an increasing trend in both HS and IS during the six-month monitoring period. The overall mean in both the monthly and weekly analysis of MC, EC, and T was higher in HS than IS. However, in the monthly analysis, a Student’s t-test at a 5% significance level showed that only the soil MC and EC were significantly different between HS and IS, while in the weekly analysis, HS was significantly different from IS in all parameters. This study suggests that soil MC, EC, and T can be used as indicators of the G. boninense infection, especially for the weekly data.

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Resistivity-Chemistry Integrated Approaches for Investigating Groundwater Salinity of Water Supply and Agricultural Activity at Island Coastal Area

Cited by 2 publications

References 4 publications

Coastal urban reliance on groundwater during drought cycles: Opportunities, threats and state of knowledge

Coastal urban reliance on groundwater during drought cycles: Opportunities, threats and state of knowledge

Temporal Changes Analysis of Soil Properties Associated with Ganoderma boninense Pat. Infection in Oil Palm Seedlings in a Controlled Environment

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