Soil and Water Management Strategies for Tidal Lowlands in Indonesia

Suryadi, F.X.

doi:10.1201/9780429333231

Cited by 17 publications

(19 citation statements)

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“…If soil maturation has not been completed, it is necessary to have good drainage. Good drainage is essential to control the decrease in groundwater level during the dry season, flushing channels during high tides, acid and toxic leaching in the rainy season [4,5,6].…”

Section: Methodsmentioning

confidence: 99%

A Proposed Improvement of Belanti II Tidal Irrigation Scheme, Kalimantan, to Support Leaching of Acid Sulphate Soil Reclamation

Setiawan

Wignyosukarto

Rahardjo

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

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The reclamation process of acid sulphate soil of the Belanti II tidal irrigation scheme remains unfinished. During ebb tide, the upstream acidic drainage water retains and settles in the irrigation canals. During high tide, the acidic water flows back into some parts of the agricultural land and reduces rice productivity. The measured pH is about 2.5 ~ 3.5 and the measured electric conductivity is about 0,25 ~ 0,35 mS/cm. Sedimentation in the middle to the end of the primary, secondary, and collector canals and tidal pond at the upstream end of the primary canal, preventing the leaching process of sulfuric acid soil. Primary canal normalization as an alternative solution to increase the capability of acidity leaching is proposed. Leaching the acidic soil of Belanti II irrigated area of 3.976 ha requires 500 m3/ha/day of freshwater, equivalent to 1.998.000 m3/day. The one-dimensional HEC RAS mathematical model is used to evaluate the hydraulics performance to support the leaching process. The hydraulic analysis was carried out using two tidal cycles on the existing channel and the normalized channel. Channel normalization has succeeded in reducing the water supply deficit to support the leaching process from 39% to 9%.

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Section: Methodsmentioning

confidence: 99%

A Proposed Improvement of Belanti II Tidal Irrigation Scheme, Kalimantan, to Support Leaching of Acid Sulphate Soil Reclamation

Setiawan

Wignyosukarto

Rahardjo

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

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“…Three Classes are recognized within the Order Suitable, as can often be recommended, the following names and definitions may be appropriate in a qualitative classification as Class S1 (Highly Suitable), Class S2 (Moderately Suitable), and Class S3 (Marginally suitable) [2][3][4][5][6][7]. Land suitability classification for rice crops in the tidal area can be derived based on land characteristics (Table 1) [8,9] and another requirement for the crop (Table 2) [10].…”

Section: Agricultural Suitability Systemmentioning

confidence: 99%

“…The identification of hydro-topography categories is the first step in delineating water management zones. Hydro-topography can be defined as the field elevation related to a high river or canal water level at the nearest open water or intake point and is expressed by the number of tidal irrigation during the wet and dry seasons [8].…”

Section: Land Suitability Evaluation For Agriculture Based On Hydro-topography Categoriesmentioning

confidence: 99%

Agriculture land suitability of tidal swampy area at Palingkau Irrigation Area in Central Kalimantan Province for national food estate program

Ramadhani

Sujono

Taryono

2021

IOP Conf. Ser.: Earth Environ. Sci.

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Agriculture plays an important role in Indonesia development. Between the years 2020 - 2024, the government targets food security on sustainable development goals. Food estates have been made in several areas. However, there are constraints such as peatland and low elevation. Various irrigation systems developed by inhabitants and government called Handil, the traditional water management system applied to irrigate rice fields using tidal river system. One of the Handil in Central Kalimantan is called Handil Rakyat Palingkau in Kapuas which can control irrigation area for around 1397 ha. Agricultural land suitability analysis is needed to ensure land suitability based on land quality in requirements and planning. In this study, land analysis was determined using FAO parameters which were analyzed based on temperature, soil type, soil nutrient retention, hydro-topography, safe from flooding, and water quality. The results showed that the relevant aspects for rice were salinity, peat thickness, inundation, TDS, pyrite depth, and hydro topography. However, some aspects are unsuitable for rice that need more attention, such as pH, temperature, and soil nutrient retention.

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“…The compressibility of soil is largely caused by the prevalence of fine-grained sediments in subsurface, particularly clay. The amount of water held in soil is linearly related to their clay content [66]; clay-rich sediments lose more water under decreasing moisture conditions, therefore to a greater extent are susceptible to shrinking compared to other soil types [67]. Given the growing urbanization of Kabul and associated increase in static external load from heavy buildings, compressible clay deposits are prone to compaction and subsidence even more.…”

Section: Comparisons With Geotechnical Properties Of Sedimentsmentioning

confidence: 99%

Quantifying Ground Subsidence Associated with Aquifer Overexploitation Using Space-Borne Radar Interferometry in Kabul, Afghanistan

Meldebekova

et al. 2020

Remote Sensing

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Rapid population growth combined with recent drought events and decades of political instability have left the residents of Kabul facing water scarcity, significantly relying on groundwater. Groundwater overexploitation might have induced various magnitudes of ground subsidence, however, to date, no comprehensive study of ground subsidence in Kabul has been conducted. In this study, we investigated the spatio-temporal evolution of ground deformation phenomena and its main governing processes in Kabul from 2014 to 2019 using C-Band Sentinel-1 derived Interferometric Synthetic Aperture Radar (InSAR) time-series from both ascending and descending orbits to extract the two-dimensional (2D) surface displacement field. Four subsidence bowls were distinguished with highly variable spatial extents and deformation magnitudes over four separate aquifer basins, with the maximum value of −5.3 cm/year observed in the Upper Kabul aquifer basin. A wavelet analysis suggests that there is a strong correlation between the groundwater level variations and subsidence. Investigation of hydrogeological data further reveals that the observed subsidence could be attributed to the presence of highly compressible clayey soils. This detailed space-borne regional survey provides new insights into the main governing mechanism of land subsidence in Kabul and may direct better mitigation plans of potential hazards.

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Soil and Water Management Strategies for Tidal Lowlands in Indonesia

Cited by 17 publications

References 0 publications

A Proposed Improvement of Belanti II Tidal Irrigation Scheme, Kalimantan, to Support Leaching of Acid Sulphate Soil Reclamation

A Proposed Improvement of Belanti II Tidal Irrigation Scheme, Kalimantan, to Support Leaching of Acid Sulphate Soil Reclamation

Agriculture land suitability of tidal swampy area at Palingkau Irrigation Area in Central Kalimantan Province for national food estate program

Quantifying Ground Subsidence Associated with Aquifer Overexploitation Using Space-Borne Radar Interferometry in Kabul, Afghanistan

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