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ANALISIS KONEKTIVITAS DAN KARAKTERISTIK LORONG PADA SISTEM HIDROGEOLOGI MATAAIR BETON, KAWASAN KARST GUNUNGSEWU, KABUPATEN GUNUNGKIDUL DENGAN UJI PERUNUTAN Ahmad Cahyadi; Eko Haryono; Tjahyo Nugroho Adji; M Widyastuti; Muhammad Naufal; Fajri Ramadhan; Romza Fauzan Agniy; Indra Agus Riyanto
JURNAL GEOGRAFI Vol 12, No 2 (2020): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v12i02.14474

Abstract

Pemahaman tentang sistem hidrogeologi dan wilayah tangkapan air dari sebuah mata air sangatlah penting. Hal ini untuk membantu pengelolaan yang menjaga kelestariannya. Mataair Beton merupakan salah satu mataair yang memiliki peranan yang sangat penting di wilayah Ponjong, Kabupaten Gunungkidul. Suplai air dari mataair ini digunakan untuk memenuhi kebutuhan air bersih, irigasi persawahan dan perikanan. Penelitian ini bertujuan untuk mengetahui konektivitas dan karakterisasi lorong di sistem hidrogeologi Mataair Beton. Metode yang digunakan adalah tracer test dengan menggunakan fluorescent dyes. Hasil analisis menunjukkan bahwa Ponor Seropan memiliki konektivitas dengan Mataair Beton, dan memiliki karakteristik lorong berupa single conduit. Perkembangan lorong yang lanjut menunjukkan bahwa sistem hidrogeologi di lokasi kajian sangat dipengaruhi oleh imbuhan airtanah dari sistem alogenik yang berhulu di wilayah non-karst dan memiliki kerentanan terhadap pencemaran airtanah yang tinggi.Kata Kunci: Karst, Sungai Alogenik, Kawasan Karst Gunung Sewu, Uji Perunutan, Mataair BetonAn understanding of the hydrogeological system and catchment area of spring is very important. This is to help manage that maintains its sustainability. Beton Resurgence is one of the springs that have a very important role in the Ponjong area, Gunungkidul Regency. Water supply from the spring is used to supply clean water, irrigated rice fields, and fisheries. This study aims to determine the connectivity and characterization of Passage in the Beton hydrogeological system. The method used is a tracer test using fluorescent dyes. The results of the analysis of breaktrough curve indicate that Seropan Sinking Stream has connectivity with Beton resurgence, and has passage characteristics in the form of a single conduit. The further development of the passage shows that the hydrogeological system is strongly influenced by groundwater recharge originating from an allogenic system that originates in non-karst areas and has a high groundwater vulnerability to pollution. Keywords: Karst, Allogenic River, Gunungsewu Karst Area, Tracer Test, Beton Resurgence
Why are Allogenic Watersheds not Protected (Again)? Ahmad Cahyadi; Eko Haryono; Tjahyo Nugroho Adji; M. Widyastuti
Social, Humanities, and Educational Studies (SHEs): Conference Series Vol 3, No 1 (2020): Social, Humanities, and Educational Studies (SHEs): Conference Series
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (464.113 KB) | DOI: 10.20961/shes.v3i1.45054

Abstract

Allogenic recharge generally contributes to the formation of the main underground river system in a karst area. However, allogenic recharge have a higher susceptibility to contamination than autogenic recharge. This is because recharge from allogenic rivers enters the underground river system without undergoing filtration by soil or rock cavities. This paper discusses changes to ministerial regulations related to karst management that have led to the exclusion of allogenic river areas from the management of allogenic rivers, examines the urgency of managing allogenic rivers, and recommends future management of karst areas from the perspective of water resources management. The change in the Minister of Energy and Mineral Resources (ESDM) regulation regarding karst management has led to a simplification of the scope related to the main tasks and functions of the Ministry of ESDM. This should be followed by making changes to regulations that are higher than the ministerial level regulations so that the management objectives stated in the previous regulation can be covered and there is holistic management of the karst area.
PENDEKATAN KONTEKSTUAL PADA PEMBELAJARAN MATEMATIKA MATERI BANGUN DATAR DI MI: APAKAH DAPAT MENINGKATKAN HASIL BELAJAR SISWA? Eko Haryono
An Nuur Vol 12, No 1 (2022): Jurnal Ilmiah An-Nuur
Publisher : Sekolah Tinggi Agama Islam Almuhammad Cepu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (864.948 KB) | DOI: 10.58403/annuur.v12i1.130

Abstract

Penelitian ini bertujuan untuk mengetahui apakah pendekatan kontekstual dapat meningkatkan prestasi hasil belajar peserta didik pada mata pelajaran matematika materi bangun datar kelas V. Jenispenelitian ini adalah penelitian tindakan kelas. Subjek dalam penelitian tindakan kelas ini adalah peserta didik kelas V MI Tarbiyatul Wildan Wates Undaan Kudus Tahun Pelajaran 2020/2021 yang berjumlah 14 peserta didik.Penelitian ini dilaksanakan dalam 3 siklus. Teknik pengumpulan data menggunakan tes dan observasi. Teknik analisis data menggunakan analisis deskriptif. Hasil penelitian menunjukkan bahwa ada peningkatan hasil belajar yang ditandai dengan peningkatan ketentuan belajar per siklus dimana pada pra siklus tingkat ketuntasannya hanya 4 peserta didik atau 28,57%, naik pada siklus I menjadi 6 peserta didik atau 42,86%, kemudian  naik lagi pada siklus II menjadi 10 peserta didik atau 71,43%, diakhir siklus III sudah menjadi 13 peserta didik atau 92.86%. Hal ini dapat disimpulkan bahwa Metode kontekstual dapat meningkatan hasil belajar peserta didik pada pembelajaran matematika materi pokok bangun datar di kelas V MI Tarbiyatul Wildan Wates Undaan Kudus  Kata Kunci: Pendekatan Kontekstual, Pembelajaran Matematika, Madrasah Ibtidaiyah, Hasil Belajar, Materi Bangun Datar.
Pengaruh Kepemimpinan Terhadap Kinerja Karyawan Bank Syariah Indonesia Kantor Cabang Bojonegoro Tahun 2021 Muhammad Alwan Aziz; Eko Haryono
Al Iqtishadiyah: Journal of Islamic Economics and Finance Vol 1, No 2 (2022): Al Iqtishadiyah: Journal of Islamic Economics and Finance (JIEF)
Publisher : FEBI IAI Al Muhammad Cepu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (520.925 KB)

Abstract

Penelitian ini bertujuan untuk mengetahui dan mendeskripsikan Kepememimpinan di Bank Syariah KC. Bojonegoro, Kinerja Karyawan di Banks Syariah Indonesia KC. Bojonegoro, Pengaruh Kepemimpinan terhadap kinerja karyawan di Bank Syariah Indonesia KC. Bojonegoro.                Dalam Penelitian ini Kepemimpinan sebagai variabel independen, sedangkan kinerja karyawan sebagai variabel dependen. Jenis Penelitian ini menggunakan metode kuantitatif dan. Sedangkan metode pengumpulan data nya menggunakan kuesioner, dokumentasi, dan observasi.          Berdasarkan hasil analisis data, diperoleh hasil bahwa dalam penelitian ini adalah bahwa Kepemimpinan di Bank Syariah Iindinesia KC. Bojonegoro adalah kepemimpinan yang menerapkan kepemimpinan Autocratic Leader, karena Seorang pemimpin yang autocratic menganggap bahwa semua kewajiban untuk mengambil keputusan, untuk menjalankan tindakannya dan untuk menggerakkan, serta mengawasi dan memberi motivasi karyawan terpusat ditangannya. Seorang pemimpin autocratic merumuskan bahwa pimpinanlah yang memutuskan dan punya perasaan bawahannya tidak mampu untuk mengarahkan diri mereka sendiri. Kinerja Karyawan di Bank Syariah Indonesia KC, Bojonegoro adalah kinerja yng memperhatikan mengenai kualitas dan kuantitas. Maka dari itu untuk meningkatkan kinerja yang berkualitas membutuhkan kinerja yang efektif dan efisien dalam hal ketepatan waktu, teamwork dan bertanggung jawab terhadap tugas yang diberikan kepada pimpinan Bank Syariah Indonesia. Pengaruh Kepemimpinan terhadap kinerja karyawan di Bank Syariah Indonesia KC. Bojonegoro berpengaruh secara positif dan signifikan terhadap kinerja karyawan. Hal ini dibuktikan dengan thitung variabel kepemimpinan adalah 3,400 dan nilai ttabel 2,048 maka thitung 3,400 ttabel 2,048 ,dan sedangkan untuk signifikan (0,002 0,05). Berdasarkan analisis tersebut maka kepemimpinan dapat berpengaruh langsung terhadap kinerja karyawan. Kata kunci : Kepemimpinan, Kinerja Karyawan, BSI
KARAKTERISTIK FISIK LAHAN AKIBAT ALIH FUNGSI LAHAN HUTAN RAWA GAMBUT Rossie Wiedya Nusantara; Sudarmadji Sudarmadji; Tjut S. Djohan; Eko Haryono
Perkebunan dan Lahan Tropika Vol 2, No 2 (2012)
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (326.533 KB) | DOI: 10.26418/plt.v2i2.3732

Abstract

Tujuan penelitian ini adalah mengamati karakteristik serasah dan biomasa tanaman pada lima tipe lahan (hutan rawa gambut primer-HP, hutan gambut sekunder-HS, semak belukar-SB, kebun sawit-KS, kebun jagung-KJ), seperti berat basah, berat kering, kadar air, kadar abu, C-organik dan kandungan C, sebagai dampak perubahan penggunaan lahan. Penelitian ini dilakukan pada lahan gambut di Rasau Jaya-Propinsi Kalimantan Barat. Hasil penelitian ini menunjukkan bahwa berat basah, berat kering, kadar air, kadar abu dan C-organik biomasa pada KJ lebih tinggi daripada KS, SB, HS dan HP. Sedangkan serasah HP mempunyai kandungan C lebih tinggi daripada KS, HS, SB dan KJ. Kata kunci : biomasa tanaman, lahan gambut, perubahan penggunaan lahan, serasah
RIVER MEANDERS ON ALLUVIAL PLAINS AND HILLY TOPOGRAPHY Raharjo, Puguh Dwi; Haryono, Eko; Setiawan, Muhammad Anggri; Permana, Haryadi
Journal of Environmental Science and Sustainable Development Vol. 6, No. 1
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Previous research on meandering rivers in Indonesia, precisely in Java, has predominantly focused on alluvial plains, while their presence is also observed in hilly regions with rocky substrates. The study aims to investigate different meandering types in Java and establish regional connections between these types and geological and geomorphological processes. The methodology involves identifying high-resolution remote sensing images and topographic data, followed by analysis based on geological and geomorphological developments. To categorize the rivers, sinuosity ratios are meticulously calculated. The tectonic setting, which influences physiography and geomorphology, is an analytical unit for determining the meandering process. The result reveals that meandering rivers are primarily located in the alluvial plains of northern Java. Meanwhile, meandering rivers in hilly areas are concentrated in structural formations, predominantly in southern and central Java. In alluvial plains, meandering rivers display a regular pattern with higher concentrations of curvature downstream, and their substrates consist of deposits or soil. Conversely, meandering rivers in hilly regions exhibit irregular and winding patterns, randomly distributed from upstream to downstream. These rivers are situated in the physiographic regions of Southern Mountains, Hills in Central Depression, and Kendeng Hills, and their substrates mainly comprise rocks, leading to a more protracted process of curvature transformation. In conclusion, meandering rivers in Java can form not only in alluvial plains but also in hilly areas. Meanders on hilly topography possess higher sinuosity ratios than those on alluvial plains, displaying irregular patterns. Energy minimization alone is not the sole controlling factor; the physical surface conditions also play a significant role, particularly in meanders in hilly areas, resulting in a diverse typology of meanders. Therefore, understanding the formation of meandering rivers in various topographic regions can serve as a basis for policymaking, particularly in flood mitigation and riverbank erosion management.
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

Abstract

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.
Assessing the sustainability of traditional agroforestry practices: a case of Mamar agroforestry in Kupang-Indonesia Ngaji, Alfred Umbu Kuala; Baiquni, Muhammad; Suryatmojo, Hatma; Haryono, Eko
Forest and Society Vol. 5 No. 2 (2021): NOVEMBER
Publisher : Forestry Faculty, Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/fs.v5i2.14380

Abstract

A traditional agroforestry of West Timor, namely Mamar, produces important ecosystem services to the people of this arid region, however, its management tends to change, thereby disrupting its sustainability. This study aims to assess the sustainability of Mamar agroforestry by analyzing the livelihood assests of the community, the biophysical land performance of the soil, and the value of ecosystem services. Furthermore, data, on perception and livelihood assets; the level of soil damage, the importance value index, and diversity index, the value of ecosystem services based on the opinion of experts and community leaders, as well as change in land use were collected in five villages in Kupang district using surveys with a qualitative and quantitative approach. The results showed a change of perspective in Mamar's management; the decrease in the important value index of cultural crops, the diversity index is classified as declining, there is soil damage in several parameters, and the value of ecosystem services does not focus on cultural services. Considering this result, there is a socio-ecological trade-off that reduces support for the sustainability of  Mamar as traditional agroforestry that emphasizes socio-cultural functions.
The Dynamics of Sustainable Livelihoods and Agroforestry in Gunungkidul Karst Area, Yogyakarta, Indonesia Sulistiyowati, Eka; Setiadi, Setiadi; Haryono, Eko
Forest and Society Vol. 7 No. 2 (2023): NOVEMBER
Publisher : Forestry Faculty, Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/fs.v7i2.21886

Abstract

The livelihoods of farmers in developing countries are often associated with the existence of forests, especially agroforestry. The dynamics of agroforestry and livelihoods could not be separated from the political context and developments in Indonesia. In this paper, the dynamics of Sustainable Livelihood Assets (SLA) owned by smallholder farmers are explored using three political sequences, namely the New Order Era, the Reform Era, and the Post-Reform Era. The result showed that the development of agroforestry in Gunungkidul had been primarily influenced by political initiatives that have a connection with vegetation coverage, livelihood assets, and species composition in the systems. The livelihoods possessed by farmers have been relatively sustainable during the past five decades; only a slight change could be observed in the ownership of capital. The political initiatives have been an enabling environment for agroforestry development that support sustainable livelihoods. The study recommends that the socio-political culture needs to consider the traditional agroforestry system in order to sustain the livelihoods of the people.
Earthquake magnitude prediction in Indonesia using a supervised method based on cloud radon data Pratama, Thomas Oka; Sunarno, Sunarno; Wijatna, Agus Budhie; Haryono, Eko
International Journal of Reconfigurable and Embedded Systems (IJRES) Vol 13, No 3: November 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijres.v13.i3.pp577-585

Abstract

In the challenging realm of earthquake prediction, the reliability of forecasting systems has remained a persistent obstacle. This study focuses on earthquake magnitude prediction in Indonesia, leveraging supervised machine learning techniques and cloud radon data. We present an analysis of the tele-monitoring system, data collection methods, and the application of regression-based machine learning algorithms. Utilizing a comprehensive dataset spanning 30 training instances and 105 test instances, the study evaluates multiple metrics to ascertain the efficacy of the prediction models. Our findings reveal that the linear regression approach yields the best earthquake magnitude prediction method, with the lowest values across multiple evaluation metrics: standard deviation 0.40, mean absolute error (MAE) 0.30, mean absolute percentage error (MAPE) 6%, root mean square error (RMSE) 0.52, mean squared error (MSE) 0.28, symmetric mean absolute percentage error (SMAPE) 0.06, and conformal normalized mean absolute percentage error (cnSMAPE) 0.97. Additionally, we discuss the implications of the research results and the potential applications in enhancing existing earthquake prediction methodologies.