Kajian Daerah Sulit Air di Kabupaten Kulon Progo  Daerah Istimewa Yogyakarta

Hendrayana, Heru; Riyanto, Indra Agus; Nuha, Azmin

doi:10.35580/lageografia.v19i2.15345

Cited by 6 publications

(6 citation statements)

References 9 publications

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“…The runoff coefficient, symbolized as 'C', remains a pivotal hydrological variable, mirroring the proportion of rainfall volume that eventually transforms into the runoff. It's a metric heavily influenced by the terrain's topography, slope, and vegetative cover [13]. Ground-level observations and assessments in the study region revealed a runoff coefficient of 0.6.…”

Section: Deciphering the Runoff Coefficientmentioning

confidence: 96%

Optimized Drainage System Design for Andesite Mining at PT. Rolas Nusantara Tambang, Kejayan, East Java

Melang,

Sari,

Fanani

2023

JEMT

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This study presents a systematic approach to designing a filtration system aimed at efficiently managing rainwater and surface runoff outside mining areas. Utilizing a quantitative method, the data collection predominantly involves secondary sources. The data is processed through a series of steps: rainfall projection, delineation of rainwater catchment areas, calculation of rainfall intensity and inflow rate, and determination of open channel and settling pond dimensions. The designed open channels have a trapezoidal shape with specific dimensions including a base width of 0.51 m, a side length of 0.62 m, a slope angle of 60°, and a channel depth of 0.54 m. These channels span a total length of 2.216 m. The accompanying settling ponds are rectangular with dimensions encompassing a length of 31 m, a width of 11 m, a depth of 6 m, and an area of 341 m². These ponds have a volume capacity of 2,046 m³, achieving an impressive 90.89% efficiency. Notably, maintenance of the settling pond involves periodic dredging using the Kobelco SK200 Excavator at intervals of roughly 16 years (5,817 days). Given that this maintenance duration surpasses the expected mine lifespan, no further interventions are required for the pond during the mine's operational period.

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Section: Deciphering the Runoff Coefficientmentioning

confidence: 96%

Optimized Drainage System Design for Andesite Mining at PT. Rolas Nusantara Tambang, Kejayan, East Java

Melang,

Sari,

Fanani

2023

JEMT

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“…In the northern part of the basin, this aquifer is composed of lithology which is dominated by sediments resulting from the decomposition of the Sentolo Formation and the Old Andesite, in the form of sandy loam, calcareous clay, tuffaceous sand, slab sand, silt, and lens clay-silt. While in the eastern part of the basin along the Progo River, there are Merapi Muda deposits which are fluviovolcanic deposits, which are composed of coarse sand, gravel sand, and medium to fine sand [12]. Aquifer Group 2 is composed of fine to coarsegrained material, with an average width of 1.5 km and a thickness of up to 40 meters [13] [14].…”

Section: Lithology and Hydrogeology Of The Study Areamentioning

confidence: 99%

Integration of Fuzzy Sets, AHP, and TOPSIS Methods for Estimation of Liquefaction Potential Zones in Wates Groundwater Basin, Kulon Progo, Special Region of Yogyakarta

Ilham,

Putra

2024

IOP Conf. Ser.: Earth Environ. Sci.

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In regional development planning, geological, environmental, and socio-economic conditions must be considered. Among the crucial things is the potential for disasters in the region. The Wates Groundwater Basin area has great regional development potential, starting from the establishment of the New Yogyakarta International Airport (NYIA) to the Southern Causeway (JJLS) construction. Various developments are predicted to continue to grow along with the development of areas targeted by the government for this area so the mapping of potential disasters is necessary as a means of achieving Sustainable Development Goals (SDGs). One of the potential disasters in CAT Wates is a liquefaction disaster, which is supported by geological, hydrogeological, and seismic data in this area which is prone to liquefaction. To confirm this potential, this research was conducted using geological and hydrogeological data from previous studies. The result of this research is a more detailed and objective zoning map of the liquefaction potential even though it uses minimal data. This is done by integrating the Fuzzy Sets, AHP, and TOPSIS methods, while simultaneously validating the result using the Cone Penetration Test (CPT) data. The results show that the eastern and southern regions of the basin which are composed of river deposits and coastal deposits, respectively, have a high to very high relative vulnerability to liquefaction, while the central region of the basin has a low to moderate relative vulnerability, and the northern region of the basin tends to have relatively very low vulnerability. That result is aligned with the total thickness of the liquefiable layer from CPT data. It indicates that the combined method is proven to be reliable for liquefaction susceptibility spatial mapping. Thus, the result hopefully can be used as a reference for land use planning in the Wates Groundwater Basin area.

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“…Beberapa faktor, termasuk geologi, kekeringan dan ketersediaan jaringan air minum, memainkan peran penting dalam mempengaruhi daerah kekurangan air. Untuk itu, tindakan pencegahan bencana juga diperlukan (Hendrayana & Ramadhika, 2016;Rijal et al, 2021). Kajian kapasitas bencana skala rumah tangga sangatlah penting dalam penanggulangan bencana karena mampu memberikan informasi berapa jumlah manusia yang membutuhkan bantuan secara detail yang mana ini sulit diakomodir oleh kajian skala desa maupun kecamatan yang unit analisisnya berupa batas administrasi.…”

Section: Pembahasanunclassified

Kajian Kapasitas Masyarakat Berbasis Aset Penghidupan Terhadap Bencana Kekeringan

Fariz

Nugraha²,

Putra³

et al. 2022

lageografia

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Windurojo Village in Kesesi District, Pekalongan Regency is one of the areas with the most susceptible to drought. Therefore, this study aims to assess community capacity against drought in Windurojo Village at the household level and to analyze the relationship between variables. This study used a livelihood asset approach with data collection focused on Serang Hamlet, which is the area with the worst drought. The results of the study stated that the livelihood asset with the highest scale in Serang Hamlet was human capital. The results of the crosstab analysis also show that human capital is related to other capital, but the Spearman correlation results show that the highest relationship is found in financial and physical capital. The scoring results show that the capacity of the community against drought in Serang Hamlet is mostly medium class capacity, only 5 families are of high class capacity. AbstrakDesa Windurojo di Kecamatan Kesesi, Kabupaten Pekalongan merupakan salah satu daerah yang paling rawan terhadap kekeringan. Oleh karena itu, penelitian ini bertujuan untuk menilai kapasitas masyarakat terhadap kekeringan di Desa Windurojo pada tingkat rumah tangga dan menganalisis hubungan antar variabelnya. Penelitian ini menggunakan pendekatan aset penghidupan dengan pendataan terfokus pada Dusun Serang yang merupakan daerah dengan kekeringan terparah. Hasil penelitian menyebutkan bahwa aset penghidupan dengan skala tertinggi di Dusun Serang adalah modal manusia. Hasil analisis crosstab juga menunjukkan bahwa modal manusia berhubungan dengan modal lainnya, namun hasil korelasi Spearman menunjukkan hubungan tertinggi terdapat pada modal fisik dan finansial. Hasil skoring menunjukkan bahwa daya tampung masyarakat terhadap kekeringan di Dusun Serang sebagian besar kelas menengah dan hanya 5 kepala keluarga yang kelas tinggi.

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Kajian Daerah Sulit Air di Kabupaten Kulon Progo Daerah Istimewa Yogyakarta

Cited by 6 publications

References 9 publications

Optimized Drainage System Design for Andesite Mining at PT. Rolas Nusantara Tambang, Kejayan, East Java

Optimized Drainage System Design for Andesite Mining at PT. Rolas Nusantara Tambang, Kejayan, East Java

Integration of Fuzzy Sets, AHP, and TOPSIS Methods for Estimation of Liquefaction Potential Zones in Wates Groundwater Basin, Kulon Progo, Special Region of Yogyakarta

Kajian Kapasitas Masyarakat Berbasis Aset Penghidupan Terhadap Bencana Kekeringan

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