Groundwater Vulnerability from Sea Water Intrusion  in Coastal Area Cilacap, Indonesia

Purnama, Setyawan

doi:10.22146/ijg.18229

Cited by 9 publications

(8 citation statements)

References 10 publications

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“…The results of this water usage calculation are then linked to the criteria for groundwater vulnerability to sea water intrusion and the depth of the interface from Purnama's research results [23] (Figure 1). Quantitative descriptive analysis is used to give an explanation of the relationship between these three aspects.…”

Section: Methodsmentioning

confidence: 99%

Evaluation of groundwater usage in relationship to groundwater vulnerability to sea water intrusion in Cilacap Coastal

2021

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Besides being able to cause land subsidence, excessive groundwater use in coastal areas can also cause to sea water intrusion. The purpose of this study is to evaluate the use of groundwater in the study area in relation to its vulnerability to sea water intrusion. Because groundwater in the study area is used for domestic, industry and livestock purposes, the water use that is taken into account is the use of water for the three sectors. The amount of water used for domestic purposes is calculated based on the population and the amount of water needed of each person per day. The amount of water use for industry is calculated based on the number of industrial employees and water usage of each employee per day. Water use for livestock is calculated based on the number of livestock and water use of each livestock per day. The results of this water usage calculation are then linked to the criteria for groundwater vulnerability to sea water intrusion and the depth of the interface. Observing the relationship between groundwater usage and the vulnerability of groundwater to sea water intrusion and the depth of its interface, Tegal Kamulyan, Cilacap and Sidakaya villages, all of which are located in South Cilacap District, need attention. The three village are classified as moderate vulnerability to sea water intrusion and shallow interface depth, but their water usage is quite high. For this reason, it is necessary to make efforts to find other water sources for domestic, industry and livestock requirement other than groundwater.

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Section: Methodsmentioning

confidence: 99%

Evaluation of groundwater usage in relationship to groundwater vulnerability to sea water intrusion in Cilacap Coastal

2021

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“…Kondisi geografis Indonesia menyebabkan rentannya daerah-daerah pesisir terhadap dampak intrusi air laut (Purnama, 2019). Menurut Suhartono et al (2015), intrusi air laut di Indonesia mengalami peningkatan sekitar 0.58 km 2 per tahunnya.…”

Section: Pendahuluanunclassified

Respon Morfo-fisiologi Empat Genotipe Cabai Rawit (Capsicum frutescens L.) terhadap Cekaman Salinitas

Badi'ah¹,

SOBIR²,

Syukur³

et al. 2021

J. Agron. Indonesia

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Penelitian tentang respon cabai rawit terhadap salinitas perlu dilakukan untuk pengembangan varietas yang toleran salinitas. Penelitian ini bertujuan untuk mengetahui respon morfologi dan fisiologi empat genotipe cabai rawit pada kondisi cekaman salinitas. Penelitian dilakukan di kebun percobaan Tajur 2 IPB Bogor pada bulan Oktober 2019-Maret 2020. Rancangan kelompok lengkap teracak dua faktor dengan lima kelompok sebagai ulangan digunakan dalam percobaan ini. Faktor pertama yaitu genotipe cabai rawit (Sigantung, CR10, CSR1, dan CRK1) dan faktor kedua adalah taraf salinitas (0-1, 2-4, 5-7, dan 8-10 mS cm-1). Hasil yang diperoleh menunjukkan bahwa salinitas secara signifikan berpengaruh terhadap peubah morfologi dan fisiologi tanaman cabai rawit. Salinitas 8-10 mS cm-1 pada peubah morfologi menyebabkan penurunan hasil tertinggi pada jumlah bunga (74.65%), jumlah daun (71.23%), bobot buah (58.48%), dan panjang akar (49.81%). Selain itu, pada konsentrasi 8-10 mS cm-1 juga menyebabkan penurunan hasil tertinggi pada peubah fisiologi. Penurunan hasil tertinggi terjadi pada konduktansi stomata (29.37%), laju transpirasi (26.47%), konsentrasi CO2 interseluler (21.83%),dan indeks klorofil (20.19%). Berdasarkan nilai rata-rata indeks sensitivitas cekaman (ISC), genotipe Sigantung (1.2) dan CSR1 (1.0) termasuk katagori peka salinitas (ISC >1.0). Akan tetapi, CR10 dan CRK1 memiliki nilai rata-rata ISC sebesar 0.8, sehingga termasuk ke dalam katagori moderat toleran salinitas (0.5<ISC<0.1). Kata kunci: indeks sensitivitas cekaman (ISC), konduktansi stomata, konsentrasi CO2 interseluler, panjang akar

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“…The high exploitation of groundwater, if it does not cause land subsidence, can also cause sea water intrusion. This second impact is more frequent, so it has become a serious problem in cities located in coastal areas [6][7][8][9][10][11][12]. Therefore, groundwater extraction must not exceed the safe yield.…”

Section: Introductionmentioning

confidence: 99%

Analysis of groundwater sufficienty for domestic and livestock requirements as an anticipation to sea water intrusion in Kebumen coast

et al. 2021

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This study has three objectives, i.e calculating the availability of groundwater in the study area, calculating water demand for domestic and livestock and evaluating the safe yield of groundwater extraction. To achieve these three objectives, groundwater availability, safe yield and actual utilization are calculated. Groundwater availability is calculated based on the multiplication of the area, aquifer thickness and the specific yield. Water demand for domestic is determined base on the number of population and the amount of water demand of each person in each day. Water demand for livestock is calculated based on the number of livestock and water consumption for each livestock in each day, while the safe yield is calculated based on the multiplication of area, annual groundwater level fluctuation and specific yield. The results of research showed that the availability of groundwater in the study area reached 440,517,770 m3/year, while the safe yield for its extraction was 76,641,600 m3/year. Because the water demand for domestic and livestock is 6,495,100 m3/year, so that the availability of groundwater in the study area is still sufficient to support water demand for these sectors. The water demand of the two sectors still have not exceeded the safe yield water extraction, so it will not cause decreasing of groundwater pressure which can cause to sea water intrusion.

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Groundwater Vulnerability from Sea Water Intrusion in Coastal Area Cilacap, Indonesia

Cited by 9 publications

References 10 publications

Evaluation of groundwater usage in relationship to groundwater vulnerability to sea water intrusion in Cilacap Coastal

Evaluation of groundwater usage in relationship to groundwater vulnerability to sea water intrusion in Cilacap Coastal

Respon Morfo-fisiologi Empat Genotipe Cabai Rawit (Capsicum frutescens L.) terhadap Cekaman Salinitas

Analysis of groundwater sufficienty for domestic and livestock requirements as an anticipation to sea water intrusion in Kebumen coast

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