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Kontrol Geologi Terhadap Perubahan Kimia Airtanah Pada Sistem Akuifer Vulkanik Di Lereng Timur Gunung Ciremai Jawa Barat Jumhari, Jumhari; Dwi Hadian, M Sapari; Zakaria, Zufialdi; Hendarmawan, Hendarmawan
Dinamika Rekayasa Vol 15, No 2 (2019): Dinamika Rekayasa - Agustus 2019
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2019.15.2.267

Abstract

Gunung Ciremai adalah gunung berapi Strato dengan tingkat curah hujan yang tinggi di bagian barat pulau Jawa. Hal ini menjadikan Gunung Ciremai sebagai sumber air tanah di daerah sekitarnya sehingga membutuhkan keseimbangan antara pengisian dan pembuangan untuk keberlanjutan air tanah. Tujuan dari penelitian ini adalah mnentukan kontrol geologis terhadap perubahan kimia dalam air tanah sebagai dasar untuk menentukan langkahlangkah keberlanjutan air tanah. Adapun metode yang dilakukan adalah pemetaan geologi, pangamatan mata air, pengujian laboratorium dan menganalisis dengan diagram pipper, diagram durov dan diagram Gibbs. Hasilnya menunjukan terdapat 4 zona perubahan kimia airtanah yang dikontrol geologi diantaranya Zone 1 memiliki nilai EC dan TDS yang rendah dengan fasies kimia air tanah Ca-HCO3. Zone 2 memiliki nilai EC dan TDS yang rendah dengan fasies kimia air tanah Ca-Na + K - HCO3-Cl. Zona 3 memiliki nilai EC dan TDS yang tinggi dengan sumber ion Ca dan Mg yang seimbang. Zone 4 memiliki nilai EC dan TDS yang sangat tinggi dengan fasies kimia air tanah Na + K Cl.Perubahan kimia air tanah daerah penelitian dipengaruhi mengontrol perubahan kimia air tanah adalah jenis litologi dan morfologi, sedangkan pada daerah tenggara dan selatan proses yang paling dominan mengontrol adalah struktur geologi. Proses lain yang berpengaruh di daerah penelitian adalah aktivitas panas bumi dan interaksi air dengan batuan sedimen tua.
Transformasi Petani Rotan (manau) dari Hasil Hutan Kekomoditas perkebunan Rakyat Studi kasus Masyarakat Desa Madobag Kecamatan Siberut Selatan Kabupaten Kepulauan Mentawai 1993-2006 Hesi, Nurmi; Zusmelia, Zusmelia; Jumhari, Jumhari
Pendidikan Sejarah Vol 3, No 2 (2014): Jurnal Mahasiwa Prodi Pendidikan Sejarah Wisuda Ke 48
Publisher : Pendidikan Sejarah

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Abstract

This thesis describes the transformation of farmers Manau Rattan From Forest Products Into commodities Smallholder economic and social life of the village community Madobag also shape and also influence the transformation of the socio-economic rattan Madobag village from 1993-2006 .        This thesis uses historical methods that are arranged in four steps: First heuristic or stage of collecting data and information from multiple sources relevant to utilize primary sources such as documents , Second Critique and external sources for testing and adjustment of the data , three interpretations ( interpretations back ) to explain diporoleh data so as to support this thesis, namely historiography Fourth presentation of research results in the form of scientific writing .       From the results of the study showed that the income of villagers who baik.terbukti Madobag changes with the rattan plantation so that the shape transformation walking cane villages madobag well as rattan jungle that was once taken now there diperkebunan people .      As well as the socio-economic situation madobag villagers , experiencing changes . These changes can be seen from the level of peoples income and the number of villagers madobag sourced from the agricultural sector . The state of society is more a slight increase from the previous period prior to 1993 because the community relies on the results of rattan from the forest , there are no other jobs in addition to searching the forest rattan cane plantation but after the peoples income has increased from year to year apart from the rattan income people also look for another job apart from gardening rattan and not just a livelihood but already have some work in other words they have to have a side job , so the presence of these people work side earn additional income in      Rural peoples social conditions Madobag 1993 as home schools , health , social life and lifestyle has not been so inadequate and no additional buildings
Characteristics of Groundwater on the Eastern Slope of Mount Ciremai, Kuningan Regency, West Java, Indonesia Dianardi, Kholqi; Jumhari, Jumhari; Hadian, M. Sapari Dwi; Waliyana, Teuku Yan
Journal of Geoscience, Engineering, Environment, and Technology Vol 3 No 4 (2018): JGEET Vol 03 No 04 : December (2018)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (924.555 KB) | DOI: 10.24273/jgeet.2018.3.4.1606

Abstract

Water is a very important component for the survival of living things. Groundwater is water that has better quality compared to other water types, so groundwater is widely used to meet the needs of clean water. The research area is located on the eastern slope of Mount Ciremai which is a volcanic area that has great groundwater potential, it is seen from the many springs with large groundwater discharge. The study aims to determine the physical and chemical characteristics of groundwater on the eastern slopes of Mount Ciremai which also the district of Kuningan. The research method is done by collecting geological data and hydrogeological data. To find characteristics of groundwater chemistry, groundwater sampling was taken at 10 locations, and then tested the laboratory to determine the chemical content of groundwater. Based on the results of the research, the physical characteristics of water were shown with EC values ranging from 76,8 to 228 µS/Cm, TDS from 50 to 151 mg/L, pH value from 6.4 to 7.65, water temperature 19.3 to 25.9 oC. While one of the observation location is HC. 11 is a hot springs that has a water temperature of 36.1 oC , EC 832 µS/Cm, TDS 428 mg/L and pH 6.8. Chemical analysis results from pipe diagram show the developing facies are Ca:HCO3, Ca.Mg:HCO3, Na.K:Cl.
URGENSI PENGUATAN IDENTITAS KEWARGANEGARAAN SUBNASIONAL DI KOTA PADANG PASCA GEMPA 2009 STUDI TENTANG REPOSISI ETNIS CINA TERHADAP KEBIJAKAN PUBLIK DAN POLITIK LOKAL Jumhari, Jumhari
Jurnal Elektronik WACANA ETNIK Vol 4, No 1 (2013): Jurnal Elektronik WACANA ETNIK
Publisher : Universitas Andalas

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Abstract

After earthquake disaster occurred on 30 September 2009, the government of Padang city and its people is not only faced with the question on Padang economic recovery and rebuilding efforts on city infrastructure but also on isssue on how to reconstruct the social structure of local population which was torn due to the handling and management of victims of post days of earthquake. One main issue is the emergence of apriori attitude felt by Chinese residents toward the neglected and discriminative attitude of government. However, it raises social solidarity amongst them post earthquake. As a minority group, Chinese is not only susceptible to economic issues, they are also vulnerable to social and cultural issues, including in the case of post-earthquake in Padang. Strengthening on subnational awareness within Chinese society reemerges when Padang municipal government in the early 2012 is about to demolish unload Gate of Friends Amical Association (Gapura Himpunan Tjinta Teman), one of Chinese cultural symbols built by Chinese ethnic in Padang as a form of solidarity. Thus, the campaigns and slogans glorifying the recognition of the diversity of life constantly voiced by Padang goverment becoming counterproductive and paradox in viewing social phenomena and empirical facts concerning government relations and their minority citizens. It is because the efforts to rebuild the pieces of social solidarity that has been torn, is in fact, it is not a simple task. To establishing uniformity in diversity takes commitment and consistent recognition as to create city residents that is more cultured and dignified in the future. This paper sees the struggle of Chinese people in Padang in their effort to reclaim the cultural symbols in public spaces after the earthquake occurred in 2009 and the emergence of dispute regarding the existence of Gate of Friends Amical Association (Gapura Himpunan Tjinta Teman) in Pecinan Padang area in early 2012 through field research and theoretical studies in analyzing the relationship between public policy and minority groups.
Characteristics of Groundwater on the Eastern Slope of Mount Ciremai, Kuningan Regency, West Java, Indonesia Dianardi, Kholqi; Jumhari, Jumhari; Hadian, M. Sapari Dwi; Waliyana, Teuku Yan
Journal of Geoscience, Engineering, Environment, and Technology Vol. 3 No. 4 (2018): JGEET Vol 03 No 04 : December (2018)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (924.555 KB) | DOI: 10.24273/jgeet.2018.3.4.1606

Abstract

Water is a very important component for the survival of living things. Groundwater is water that has better quality compared to other water types, so groundwater is widely used to meet the needs of clean water. The research area is located on the eastern slope of Mount Ciremai which is a volcanic area that has great groundwater potential, it is seen from the many springs with large groundwater discharge. The study aims to determine the physical and chemical characteristics of groundwater on the eastern slopes of Mount Ciremai which also the district of Kuningan. The research method is done by collecting geological data and hydrogeological data. To find characteristics of groundwater chemistry, groundwater sampling was taken at 10 locations, and then tested the laboratory to determine the chemical content of groundwater. Based on the results of the research, the physical characteristics of water were shown with EC values ranging from 76,8 to 228 µS/Cm, TDS from 50 to 151 mg/L, pH value from 6.4 to 7.65, water temperature 19.3 to 25.9 oC. While one of the observation location is HC. 11 is a hot springs that has a water temperature of 36.1 oC , EC 832 µS/Cm, TDS 428 mg/L and pH 6.8. Chemical analysis results from pipe diagram show the developing facies are Ca:HCO3, Ca.Mg:HCO3, Na.K:Cl.