Jurnal Episentrum最新文献

Sebaran Spasial Eceng Gondok (Echornia Crassipes) di Danau Tondano

Jurnal Episentrum Pub Date : 2020-12-15 DOI: 10.36412/JEPST.V1I3.2383

A. T. Moningkey, A. Lihiang, M. M. Rampengan

{"title":"Sebaran Spasial Eceng Gondok (Echornia Crassipes) di Danau Tondano","authors":"A. T. Moningkey, A. Lihiang, M. M. Rampengan","doi":"10.36412/JEPST.V1I3.2383","DOIUrl":"https://doi.org/10.36412/JEPST.V1I3.2383","url":null,"abstract":"The growth of water hyacinth in the waters of Lake Tondano can affect the lake's ecosystem due to its rapid growth and spread. Water hyacinth is a weed that damages the aquatic environment which, if its growth and development are not controlled, will reduce the amount of light entering the waters, evapotranspiration, and reduce the amount of water and can accelerate the process of silting the waters of Lake Tondano. The research objective was to determine the distribution pattern of water hyacinth in Lake Tondano from 2015 to 2020. The research method was descriptive qualitative and spatially analyzed data using geographic information systems. The data used are primary and secondary data, obtained through observation and field surveys and documentation. Based on the results of spatial analysis, it is known that the distribution pattern of water hyacinth in Lake Tondano has increased from 2015 with an area of 465.59 Ha, in 2016 the area was 848 Ha, in 2017 the area was 999,695 and there was a change in area decline, in 2018 the area was 675.87 Ha, and 2019 the area was 366.36 Ha. , and in 2020 the area of water hyacinth will increase to 995,797 hectares. The factors causing the uncontrolled distribution of water hyacinth in the waters of Lake Tondano can be due to the season (climate), sedimentation, or land use. The growth and development of water hyacinths have disrupted various community activities and have an impact on the process of silting the waters of the lake and damaging the beauty of Lake Tondano.","PeriodicalId":225914,"journal":{"name":"Jurnal Episentrum","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126024689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Perubahan Lahan Permukiman di Kecamatan Beo Kabupaten Talaud

Jurnal Episentrum Pub Date : 2020-12-15 DOI: 10.36412/JEPST.V1I3.2357

Reinaldi Wangke, Maxi Tendean, Helena Sri Sulastriningsih

引用次数: 0

Identifikasi Sampah Plastik di Sepanjang Pesisir Madidir Kota Bitung 沿岸城市比东市马迪迪尔的塑料垃圾的鉴定

Jurnal Episentrum Pub Date : 2020-12-15 DOI: 10.36412/JEPST.V1I3.2355

Martha Tumey, Joyce Christian Kumaat, H. V. Oroh

{"title":"Identifikasi Sampah Plastik di Sepanjang Pesisir Madidir Kota Bitung","authors":"Martha Tumey, Joyce Christian Kumaat, H. V. Oroh","doi":"10.36412/JEPST.V1I3.2355","DOIUrl":"https://doi.org/10.36412/JEPST.V1I3.2355","url":null,"abstract":"The purpose of this study was to determine the distribution of plastic waste along the coast of Madidir, Bitung City. This type of research is descriptive quantitative using a survey approach that analyzes data spatially. The method of collecting waste is carried out in 2 ways, namely: the first way, the installation of points at 4 locations, namely at Madidir Weru, Madidir Uure, Madidir Unet, and Madidir Main which follow the coastline of Madidir. The second way, when point installation takes place in 4 locations where calculations, measurements and weights are also carried out directly on the coast of Madidir. Based on the research results, the plastic waste obtained starts from mineral drink bottles, straws, aqua glasses, etc. At 4 location points, it is known that the amount of plastic waste in madidir weru is 221 per piece, madidir unet is 172 per fruit, madidir madidir is 141 per piece, and madidir ure is 71 per piece. While the total amount of plastic waste along the coast of Madidir City of Bitung is 605 per piece. The results of the identification of the distribution of plastic waste along the Madidir coast of Bitung City can be seen as contributing to marine pollution.","PeriodicalId":225914,"journal":{"name":"Jurnal Episentrum","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117305965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pemetaan Sebaran Daerah Asal Mahasiswa Universitas Negeri Manado Berbasis Sistem Informasi Geografis 根据地理信息系统对马纳多大学学生的家乡进行分类映射

Jurnal Episentrum Pub Date : 2020-12-15 DOI: 10.36412/JEPST.V1I3.2353

Nikel Tambengi, Joyce Christian Kumaat

{"title":"Pemetaan Sebaran Daerah Asal Mahasiswa Universitas Negeri Manado Berbasis Sistem Informasi Geografis","authors":"Nikel Tambengi, Joyce Christian Kumaat","doi":"10.36412/JEPST.V1I3.2353","DOIUrl":"https://doi.org/10.36412/JEPST.V1I3.2353","url":null,"abstract":"The need for information regarding the spatial distribution of the area of origin of students who are currently studying at the Manado State University (UNIMA) is very important because the information built can provide useful input for planning, development, or evaluation. So that the distribution of the areas of origin of students who are studying at UNIMA can be mapped properly, an information system based on Geographical Information Systems (GIS) can be built according to its geographic location. This study aims to create and present information about the spatial distribution of students from UNIMA through GIS. Quantitative type research methods with a spatial analysis approach (spatial analysis) using secondary data. Data analysis techniques through Geographical Information Systems (GIS) to create a digital map of the spatial distribution of student origin using OpenStreetMap and Quantum GIS Zanzibar 3.8.1. The results showed that the spatial distribution of the area from which UNIMA students used GIS, made it easier to present information through digital maps. The information system created can display the distribution data of the student's area of origin, namely the number of students from each province in Indonesia and especially in the form of a distribution map. The largest distribution of student origin came from North Sumatra Province with 1,209, followed by South Sulawesi Province with 893 and North Maluku Province with 650 students.","PeriodicalId":225914,"journal":{"name":"Jurnal Episentrum","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131527937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Identifikasi Perubahan Penggunaan Lahan dengan Menggunakan Citra Satelit di Distrik Musatfak Kabupaten Jayawijaya

Jurnal Episentrum Pub Date : 2020-12-15 DOI: 10.36412/JEPST.V1I3.2356

Lukmar Hilungka, Grace F. E. Suoth, Helena Sri Sulastriningsih

引用次数: 0

Identifikasi Rawan Bencana Tanah Longsor Kabupaten Toraja Utara

Jurnal Episentrum Pub Date : 2020-12-15 DOI: 10.36412/JEPST.V1I3.2354

Ega Londongallo, Maxi Tendean, Grace F. E. Suoth

引用次数: 0

Analisis Kontribusi Limbah Domestik Terhadap Kualitas Air Sungai Tondano-Sawangan Sulawesi Utara 分析国内污水对北苏拉威西唐丹-萨兰甘河水质的贡献

Jurnal Episentrum Pub Date : 2020-08-31 DOI: 10.36412/jepst.v1i2.2121

Norinca Sagala, Maxi Tendean, Helena Sri Sulastriningsih

{"title":"Analisis Kontribusi Limbah Domestik Terhadap Kualitas Air Sungai Tondano-Sawangan Sulawesi Utara","authors":"Norinca Sagala, Maxi Tendean, Helena Sri Sulastriningsih","doi":"10.36412/jepst.v1i2.2121","DOIUrl":"https://doi.org/10.36412/jepst.v1i2.2121","url":null,"abstract":"Masalah penelitian ini adalah kontribusi limbah domestik terhadap kualitas air sungai Tondano-Sawangan Sulawesi Utara. Penelitian ini bertujuan untuk mengkaji tentang kontribusi limbah domestik penduduk di bantaran sungai Sawangan terhadap kualitas air sungai Tondano-Sawangan Sulawesi Utara. Metode penelitian yang digunakan adalah deskriptif kuantitaf. Teknik pengumpulan data dikumpulkan dari hasil pengambilan sampel di dua lokasi dan perhitungan labolatorium dan dokumentasi yang ada dilapangan. Parameter yang diukur di laboratorium adalah derajat keasaman atau pH, Biochemilcal Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Suspended Solid (TSS), Amoniak, dan Total Coliform. Hasil penelitian menunjukkan kualitas air Sungai Tondano-Sawangan mengalami penurunan kualitas dari hulu ke hilir yang disebabkan oleh limbah domestik penduduk. Parameter yang dominan memberikan kontribusi nilai indeks pencemar yang tinggi adalah parameter biologi yaitu total coliform. Pencemaran air yang disebabkan oleh kontaminasi limbah toilet merupakan masalah yang cukup serius, dikarenakan adanya potensi penularan penyakit oleh pathogen. Kandungan Total coliform yang terdapat pada air sungai bagian hulu sebesar 24200 MPN/100ml sedangkan bagian hilir sebesar 19900 MPN/100ml, sudah melebihi nilai ambang batas standar baku mutu sesuai Standar Nasional Indonesia. Batas maksimum Cemaran Total Coliform yaitu 3000 MPN/100ml, dengan demikian dapat dikatakan bahwa mutu air sungai Sawangan sudah tidak aman lagi untuk di konsumsi bagi masyarakat, namun untuk kegiatan rekreasi, tambak ikan, dan lain sebagainya masih aman. Parameter lain seperti BOD, COD, pH, TSS, Amonia, masih aman karena berada dibawah standar Baku Mutu.Kata Kunci: Limbah Domestik , Kualitas Air, Pencemaran Air, Baku Mutu","PeriodicalId":225914,"journal":{"name":"Jurnal Episentrum","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117010377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Pemetaan Daerah Rawan Bencana Tanah Longsor Pada DAS Tondano Bagian Hulu Sebagai Laboratorium Alam Mahasiswa Geografi 地理专业学生自然实验室

Jurnal Episentrum Pub Date : 2020-04-15 DOI: 10.36412/jepst.v1i1.1806

Denny Maliangkay

{"title":"Pemetaan Daerah Rawan Bencana Tanah Longsor Pada DAS Tondano Bagian Hulu Sebagai Laboratorium Alam Mahasiswa Geografi","authors":"Denny Maliangkay","doi":"10.36412/jepst.v1i1.1806","DOIUrl":"https://doi.org/10.36412/jepst.v1i1.1806","url":null,"abstract":"Tanah longsor (landslide) merupakan salah satu jenis bencana alam yang sering terjadi di Indonesia, terutama pada musim hujan. Kemungkinan frekuensi kejadian atau terjadinya longsor lebih tinggi dibandingkan dengan jenis bencana lainnya. Longsor atau sering disebut gerakan tanah adalah suatu peristiwa geologi yang terjadi karena pergerakan masa batuan atau tanah dengan berbagai tipe dan jenis seperti jatuhnya bebatuan atau gumpalan besar tanah. Meskipun penyebab utama kejadian ini adalah gravitasi yang memengaruhi suatu lereng yang curam, namun ada pula faktor-faktor lainnya yang turut berpengaruh. Agar dapat memantau dan mengamati fenomena tanah longsor diperlukan adanya suatu analisa dan pemetaan daerah rawan longsor yang mampu memberikan gambaran kondisi kawasan yang ada berdasarkan faktor-faktor penyebab terjadinya tanah longsor. Selain itu juga kita bisa me-ngetahui sebaran daerah rawan longsor dan faktor utama penyebabnya sehingga kita bisa merumuskan upaya penang-gulangan. Longsor lahan yang terjadi di DAS Tondano bagian hulu meliputi longsoran ukuran kecil, ukuran sedang dan ukuran besar. Longsorlahan yang mempengaruhi aktifitas DAS Tondano bagian hulu, morfometrinya langsung di ukur di lapangan. Kondisi kemiringan lereng yang terukur merupakan kemiringan lereng dari longsoran, bukan merupakan lereng medan secara keseluruhan. Dari hasil pengamatan yang dilakukan, longsorlahan yang terjadi di daerah penelitian baik tipe longsor (slide), aliran (flow) dan runtuhan/jungkiran (fall), saat ini kesemuanya berjumlah 14 titik. Tipe longsor lahan yang dominan terjadi di daerah penelitian adalah tipe aliran (flow).","PeriodicalId":225914,"journal":{"name":"Jurnal Episentrum","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132282039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1