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Hydrogeology of Mangsri Cave, Gunungsewu Karst Area, Java Island, Indonesia Cahyadi, Ahmad; Reinhart, Hilary; Wahyu Ristiawan, Angga; Dwi Putra, Rakhmat; Labib, M. Ainul; Naufal, Muhammad; Agus Riyanto, Indra; Ramadhan, Fajri; Dwi Laksono, Angga
Sumatra Journal of Disaster, Geography and Geography Education Vol 5 No 1 (2021): Sumatra Journal of Disaster, Geography and Geography Education (June Edition)
Publisher : Sumatra Journal of Disaster, Geography and Geography Education

The Gunungsewu karst area is not only known for its unique landscape but also its recurring drought events. To meet the water supply, the local population utilizes several water potentials, namely doline pond, spring, and underground river. This study was designed to analyze the hydrogeological conditions of Mbangsri Cave, following its accidental discovery by the community at the end of 2018. The hydrogeological analysis was conducted by geological surveys, which consisted of rocks collection and structural measurements, cave mapping, and recharge area delineation based on remote sensing images acquired by unmanned aerial vehicles. The results showed that Mbangsri Cave, in the hydrogeological perspective, had low water resources potential. It is believed to be the result of (1) relatively small catchment area, (2) a fault in the southern part of Mbangsri Cave, creating a small groundwater basin, and (3) the thin epikarst layer, limiting the water storage.

Analisis Kualitas Air dan Indeks Pencemaran Sebagai Dasar Pengelolaan DAS Sungai Lamandau Penggal Nanga Bulik-Batuhambawang Hilary Reinhart; Suaduan .; Tommy Andrian Tivianton; Kristiyanto .
Bumi Lestari Journal of Environment Vol 21 No 2 (2021)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2021.v21.i02.p02

Sungai Lamandau merupakan salah satu sungai utama yang mengalir melewati dua kabupaten di Provinsi Kalimantan Tengah yakni Kabupaten Lamandau dan Kabupaten Kotawaringin Barat. Di Kabupaten Lamandau, sungai ini mengalir melewati Nanga Bulik sebagai pusat Kabupaten Lamandau. Perkembangan daerah, baik Kabupaten Lamandau dengan Nanga Bulik memberikan tekanan kepada Sungai Lamandau dimana terjadi pencemaran yang pada akhirnya menurunkan nilai kualitas air Sungai Lamandau. Padahal, sungai ini menjadi salah satu bagian hidup masyarakat yang memanfaatkan airnya serta mata pencaharian dan sepanjang sejarah mengiringi masyarakat dayak tempatan untuk berkembang. Penelitian ini bertujuan untuk mengkaji dampak perkembangan terhadap kondisi Sungai Lamandau dan diharapkan menajdi masukan untuk penetapan kelas sungai dan peraturan yang mengaturnya. Untuk mencapai tujuan tersebut, penelitian ini menggunakan metode kuantitatif untuk menganilisis kualitas air Sungai Lamandau dan kualitatif untuk mengelaborasi hasil perhitungan tersebut. Sistem Informasi Geografis juga digunakan untuk mendukung analisis dan penjabaran. Berdasarkan hasil sampel dan analisis, ditemukan parameter sungai yang perlu menjadi perhatian yakni pH, DO, Fecal Coliform, dan Deterjen. Faktor yang mengontrol parameter tersebut berasal dari faktor alami dan faktor aktivitas manusia berupa pemukiman sehingga berperan dalam penambahan Fecal Coliform dan Deterjen. Indeks Pencemaran

Konflik Penambangan Batugamping Kecamatan Ponjong dalam Tinjauan Arena Bourdieu Hilary Reinhart
Jurnal Wilayah dan Lingkungan Vol 5, No 1 (2017): April 2017
Publisher : Department of Urban and Regional Planning, Diponegoro University

Limestone mining is a problem in the karst area because it causes environmental degradation, social change from the agrarian to industrial, and conflicts among stakeholders. Therefore, the limestone mining is not only identified as the environmental damage problems but also environmental management problems. The article aimed to explain an overview of the mining conflicts in the karst region. On the other hand, this study also provided a new approach in understanding the conflicts of mining. The study was conducted using qualitative descriptive analysis. Analyses were performed using stakeholder mapping and potential conflicts between stakeholders. The mapping results were contextualized using field and capital approach of Pierre Bourdieu theory. The approach used to understand the direction of conflicts and capital contestation of each author. The capital analysis showed that the government, namely the Energy and Mineral Resources in various levels of bureaucracy has the dominant capital in the arena of limestone mining in Ponjong District because it has a complete capital and outperforms of the other actors. It concludes that the differences types of capital affect the actors to take the position in an arena and each actor who has a robust capital sought to accumulate the capital to attain the main capital.

Spatial Analysis and Sustainable-Strategic Environment Management at Baron Spring Catchment Area, Karst of Gunung Sewu, Yogyakarta Hilary Reinhart; Andi Rifani
Jurnal Ilmu Lingkungan Vol 17, No 2 (2019): Agustus 2019
Publisher : School of Postgraduate Studies, Diponegoro Univer

Gunung Sewu’s karstic aquifer characteristic of fracture-fissure water conduit leads to pollution problem in the water resources. One main source of water used is the Baron Spring. This study aims to analyze the water quality of the Baron Spring toward the land use in the catchment area and provide recommendations for spatial planning and water management in certain area. This research used spatial analysis of GIS and water quality was analyzed by Pollution Index. The results showed that the Baron Spring was in a mild contaminated state with amount of TSS was 97,1 mg/L, bicarbonate 96 mg/L, total coliform 210 MPN/100ml, and total oil and fat 2 mg/L which have exceeded the water source quality standards. Those results are related with the land use in the catchment area where settlement is dense in the upstream, also because of the distribution of settlement and sinkhole in the middle-part of catchment. In coping with the contamination and pollution several strategies are urged to be designed and implemented. Strategies comprised by two approaches, socio-cultural and spatial approach. Each of the approaches is linked and should not be separated. Management of catchment including stakeholder involvement and spatial planning are essential to be considered.

Water quality of Pulejajar Underground River, Karst of Gunung Sewu as the basis of karst management Hilary Reinhart; Andi Rifani
Sustainability (STPP) Theory, Practice and Policy Vol. 1 No. 1 (2021): Sustainability: Theory, Practice and Policy October Edition
Publisher : Pusat Kajian Berkelanjutan UIN Sulthan Thaha Saifuddin Jambi

Karst area has a crucial role in providing water resource. However, due to the intrisic characteristic, water resource in the karst area is highly susceptible to the pollution and relatively hard to manage because the complexity of the aquifer. Karst of Gunung Sewu as one of the main karst area in Indonesia has abundant water resource inside the cave but the utilization is very limited due to the technical constraint to lift the water and distribute it. One the main water resources in Karst of Gunung Sewu is the Pulejajar Underground River at Jepitu Village. As one of the main water resource, a management to maintain its water quality is very important. We examine the water quality of the Pulejajar Underground River and study the factors that affect it. We employ water sampling using purposive sampling in 4 locations and analyze it using Pollution Index (PI) calculation and view the spatial context of the underground river using GIS tool. As the result the PI for the sampling location consists of lighlty polluted in the water intake and the small junction of the Pulejajar Underground River and heavily polluted in the big junction and the Puring Spring. The pollution comes from the Calcium and E. Coli parameter which originates from the dissolution of limestone and the feces of the livestock because the poor filtration at the karst area. The management strategies suppose to comply with the SDGs number 6 as the main framework dan must cover the both side of human side and the nature side including land cover management, water accessibility, and conservation of the catchment area.

Smart City Approaches to Public Spaces and Services during and after COVID-19: Case Studies in Four Capital Cities Rachmawati, Rini; Mei, Estuning Tyas Wulan; Haryono, Eko; Reinhart, Hilary; Ghiffari, Rizki Adriadi; Rohmah, Amandita Ainur; Saralah, Thas; Pradipa, Hanindha; Nurani, Idea Wening; Petre, Angelo Andi
Indonesian Journal of Geography Vol 55, No 3 (2023): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.84578

COVID-19 pandemic was reported to modify people’s behaviour in using public spaces and accessing services. This fact has become a critical input related to future city development strategies, space arrangements, and the implementation of smart city. Therefore, this study aims to 1) Identify efforts in several cities during COVID-19 pandemic, specifically concerning the use of public spaces and services, and 2) Compile the outlines of future urban planning strategies after the pandemic. The aspects related to the use of Information and Communication Technology (ICT), space arrangement, and urban environment are discussed. The analysis is based on case studies in four capital cities, namely Jakarta, Paris, Bucharest, and Canberra. Furthermore, field observations and in-depth interviews are used to emphasize changes in the function and use of public spaces and services during and after the pandemic. The result shows that differences and common elements configure the transformations of urban spaces since changes in the use of public spaces are closely connected to efforts to combat the pandemic. Meanwhile, in public services, changes are associated with the increasing use of ICT and Internet of Things (IoT). In the future, cities need to show their visions according to the local conditions supporting better spatial arrangement and management of urban environment due to ICT and IoT prominence.

Kumpul Bocah: Analisis Spasial Lokasi Kumpul Anak-Anak di Kalurahan Wonokromo, Kapanewon Pleret, Bantul Reinhart, Hilary; Purwohandoyo, Joni; Saputra, Erlis; Rachmawati, Rini; Kurniawan, Andri; Widiyastuti, Dyah; Retnowati, Arry; Sadali, Mohammad Isnaini; Ghiffari, Rizki Adriadi
TATALOKA Vol 27, No 1 (2025): Volume 27 No. 1 February 2025
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/tataloka.27.1.1-12

Kalurahan Wonokromo merupakan salah satu kalurahan di Kapanewon Pleret, Bantul yang kini menjadi salah satu pusat pemukiman di kawasan peri urban Jogja. Akibatnya, jumlah pertumbuhan anak-anak juga terus bertambah. Guna mengakomodir hal tersebut, diperlukan pengembangan RPTRA untuk menjawab kebutuhan anak-anak untuk tumbuh dan berkembang. Tujuan Penelitian ini adalah menganalisis pola sebaran dan titik kumpul anak-anak untuk mendapatkan gambaran dan faktor yang mendorong anak-anak tersebut berkumpul. Cara memperolehnya, digunakan analisis keruangan secara kuantitatif dengan perhitungan indeks moran, hot spot menggunakan kernel density, dan analisis nearest neighborhood. Berdasarkan hasil analisis, didapatkan lokasi berkumpul anak-anak tersebar secara acak dan lokasi kumpul anak-anak terkonsentrasi pada pekarangan dengan aktivitas seperti permainan tradisional dan olah fisik. Berdasarkan pertimbangan tersebut, didapatkan bahwa titik kumpul anak-anak tersebar secara random dan acak. Guna mengakomodir hal tersebut, maka pengembangan RPTRA perlu dilakukan secara mikro dan tersebar dengan luasan yang cukup untuk menampung hingga rata-rata 7 orang anak.

Water quality of Pulejajar Underground River, Karst of Gunung Sewu as the basis of karst management Reinhart, Hilary; Rifani, Andi
Sustainability (STPP) Theory, Practice and Policy Vol. 1 No. 1 (2021): Sustainability (STPP) Theory, Practice and Policy October Edition
Publisher : Pusat Kajian Berkelanjutan UIN Sulthan Thaha Saifuddin Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30631/sdgs.v1i1.890

Karst area has a crucial role in providing water resource. However, due to the intrisic characteristic, water resource in the karst area is highly susceptible to the pollution and relatively hard to manage because the complexity of the aquifer. Karst of Gunung Sewu as one of the main karst area in Indonesia has abundant water resource inside the cave but the utilization is very limited due to the technical constraint to lift the water and distribute it. One the main water resources in Karst of Gunung Sewu is the Pulejajar Underground River at Jepitu Village. As one of the main water resource, a management to maintain its water quality is very important. We examine the water quality of the Pulejajar Underground River and study the factors that affect it. We employ water sampling using purposive sampling in 4 locations and analyze it using Pollution Index (PI) calculation and view the spatial context of the underground river using GIS tool. As the result the PI for the sampling location consists of lighlty polluted in the water intake and the small junction of the Pulejajar Underground River and heavily polluted in the big junction and the Puring Spring. The pollution comes from the Calcium and E. Coli parameter which originates from the dissolution of limestone and the feces of the livestock because the poor filtration at the karst area. The management strategies suppose to comply with the SDGs number 6 as the main framework dan must cover the both side of human side and the nature side including land cover management, water accessibility, and conservation of the catchment area.

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