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All Journal Jurnal Lanskap Indonesia Jurnal Planologi Sultan Agung Jurnal Penelitian dan Pengembangan Sains dan Humaniora (JPPSH) LaGeografiA JURNAL MANAJEMEN AGRIBISNIS Pattingalloang : Jurnal Pemikiran Pendidikan dan Penelitian Kesejarahan Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) GEA, Jurnal Pendidikan Geografi JURNAL AGRILAND Jurnal Penelitian Pertanian Terapan Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) JURNAL BUDIDAYA PERTANIAN ARIKA Jurnal Kepariwisataan Mediagro AGROTECH Research Journal
Alfred Jansen Sutrisno
Universitas Kristen Satya Wacana
Agriculture, Biological Sciences & Forestry Arts Humanities Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Physics Social Sciences Transportation Other

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Spatial and Temporal Analysis of Dissolved Oxygen (DO) and Biological Oxygen Demand (BOD) Concentrations in Rawa Pening Lake, Semarang Regency Handoko, Muhammad; Sutrisno, Alfred Jansen
Jurnal Pendidikan Geografi Gea Vol 21, No 1 (2021)
Publisher : Indonesia University of Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/gea.v21i1.32330

Abstract

Rawa Pening Lake are the waterbody which it waters comes from a swamp spring, besides that several rivers empty into Rawa Pening, including Galeh River, Torong River, Panjang River, Muncul River, Parat River, Legi River, Pitung River, Praginan River, and Rengas River. Three problems cause damage to the Rawa Pening Lake ecosystem, namely damage to the water catchment area, damage to the lake border, and water pollution. This study aims to analyze Dissolved Oxygen (DO) and Biological Oxygen Demand (BOD) spatially and temporally due to damage to the lake ecosystem. The method used was Inverse Distance Weighted (IDW), where 12 sample point locations were taken, 10 sample points representing each village (lake inlet and utilization), and 2 sample points representing the center and outlet of the lake. The average DO yield in September 2020 was 6.8 mg / L, then in October 2020 it was 4.65 mg / L and in November 2020 it was 3.04 mg / L. Then the average BOD in September 2020 was 3.16 mg / L, then in October 2020 it was 2.6 mg / L and in November it was 1.53 mg / L, so it can be seen that the DO variable and BOD both decreased from September to November 2020.
Analisis Perubahan Penggunaan Lahan Sawah dari Tahun 2008 – 2018 Bangun, Yurin; Simanjuntak, Bistok Hasiholan; Sutrisno, Alfred Jansen
LaGeografia Vol 19, No 3 (2021): Juni
Publisher : UNIVERSITAS NEGERI MAKASSAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (891.097 KB) | DOI: 10.35580/lageografia.v19i3.20118

Abstract

Paddy field is a natural resource and have an important role in maintaining the stability of the community's food (rice) production. Banyubiru District is one of the biggest contributors in supplying the rice needs of the people in Semarang Regency. So that the research aims to identify the extent and rate of change in the use of rice fields from 2008 to 2018 in Banyubiru District. The research approach used is based on geographic information systems in analyzing satellite images. The satellite imagery used is multi-resolution imagery such as Landsat 5 TM in 2008, Worldview-2 in 2013, and SPOT 6 in 2018. Image interpretation uses a pixel-based classification method with the maximum likelihood method and on-screen digitization found in ENVI 5.3 and ArcGis software. 10.8. The land use classification system used refers to following the Indonesian National Standard 7654: 201. The results of the study explained that there had been a change in the area of paddy land use in the Banyubiru District from 2008 to 2013 of 68 ha and from 2013 to 2018 of 65 ha. In addition, the rate of land use change from 2008 to 2018 was 14.78 ha / year, so this event can be categorized as a class of rapid land change rate.
Perancangan dan Pembangunan Taman Apotek Hidup pada Lanskap Industri, Kabupaten Kudus Alfred Jansen Sutrisno; Hermanto
Jurnal Lanskap Indonesia Vol. 12 No. 1 (2020): Jurnal Lanskap Indonesia
Publisher : http://arl.faperta.ipb.ac.id/

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jli.v12i1.32078

Abstract

Gardener in the industrial landscape has limited knowledge and experience in managing the environment. Meanwhile, there are areas in the industrial landscape that can be developed into thematic parks. The purpose of this activity is to train gardener in designing and constructing parks that have good visual quality. The living pharmacy park is a concept park that is trying to be developed. This park is dominated by a collection of medicinal plants or often also called the family medicinal plant garden (Tanaman Obat Keluarga - TOGA). The method used are a workshop and Focus Group Discussion (FGD). The area of land that is used as a place for design and construction activities is 720.3 m2. The design process starts from an inventory of existing conditions, then analyzed and synthesized to get the appropriate park design. After the design results were agreed upon, a park was developed. Park development must be in accordance with the results of the design. However, the obstacle faced is that there are some problems that are not properly inventoried and found during development. Even though, the results of the construction of the park are still quite in accordance with the results of the design. Keywords: Gardener, Living Pharmacy Park, Medicinal Plant, Visual Quality
Penerapan Konsep Walkable Campus pada Perancangan Jalur Pedestrian Kampus Diponegoro UKSW Isna Nugraha Wibawa; Alfred Jansen Sutrisno
Jurnal Lanskap Indonesia Vol. 14 No. 1 (2022): Jurnal Lanskap Indonesia
Publisher : http://arl.faperta.ipb.ac.id/

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jli.v14i1.38752

Abstract

Walkable Campus is a pedestrian track design concept that prioritizes connectivity, accessibility, security, comfort, and beauty. The UKSW pedestrian track needs to be evaluated so that it can meet the needs of users. The evaluation was carried out using the walkable campus concept, so this study aims to produce a pedestrian path design based on a walkable campus. The research method used is descriptive statistics and Scenic Beauty Estimation (SBE). Descriptive statistics were used to evaluate connectivity, accessibility, security, and convenience. While SBE is used to evaluate beauty. There are 5 spots out of 3 zones where zone 1 has 2 spots, zone 2 has 1 spot, and zone 3 has 2 spots. The results of the descriptive statistical test show that the connectivity, accessibility, security, and comfort of the 3 zones received poor ratings from users. Therefore, the results of the evaluation of user perceptions are used to make a design proposal. The proposed design is made to meet the aspects of connectivity, accessibility, security, and convenience. Meanwhile, the results of the SBE evaluation show that the aesthetic condition of the existing pedestrian paths from 5 spots has a low SBE value when compared to the 3 proposed designs. In addition, the SBE evaluation is used to determine the design recommendations. There are 5 designs that meet the walkable campus concept.
Kapasitas Pohon Nyamplung (Calophyllum Inophyllum L.) dan Pohon Spathodea (Spathodea Campanulata) Dalam Menjerap Debu Alfred Jansen Sutrisno; Gusti Diandasari; Adlia Vidya Rahmandari
Jurnal Planologi Vol 17, No 1 (2020): April
Publisher : Universitas Islam Sultan Agung Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/jpsa.v17i1.5197

Abstract

Arboretum lanskap IPB merupakan sebuah greenbelt pada Jalan Raya Dramaga. Jalan Raya Dramaga merupakan jalur yang dipadati oleh kendaraan bermotor roda dua, roda empat, bahkan truk yang mengakibatkan tingginya polusi udara khususnya jenis partikel debu. Tujuan penelitian ini ialah untuk mengetahui kapasitas vegetasi sebagai green belt dalam menjerap debu. Metode penelitian yang digunakan ialah purposive sampling, dimana Pohon Nyamplung dan Pohon Spathodea digunakan sebagai sampel. Daun pada kedua jenis pohon tersebut akan diambil dan dianalisis untuk mendapatkan kapasitas jerapan debu. Hasil penelitian ini menjelaskan bahwa Pohon Spathodea memiliki kapasitas jerapan debu yang jauh lebih besar yaitu 0,041-0,043 g/m2 per hari, sementara Pohon Nyamplung memiliki kapasitas jerapan debu sebesar 0,023-0,025 g/m2 per hari.
Kajian Kelayakan Objek Lanskap Sejarah Eropa Berdasarkan Persepsi Masyarakat Kecamatan Ambarawa Nova Tri Surya; Alfred Jansen Sutrisno
PATTINGALLOANG Vol. 8, No. 1, April 2021
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/jp.v8i1.19758

Abstract

Ambarawa termasuk salah satu daerah yang memiliki potensi aset sejarah peninggalan khas eropa serta dapat dimanfaatkan sebagai objek wisata sejarah. Objek wisata sejarah eropa tersebut memiliki potensi mendatangkan wisatawan yang dapat meningkatkan ekonomi bagi masyarakat sekitar. Wisatawan yang berkunjung pada objek wisata sejarah di Ambarawa mulai mengalami penurunan setiap tahunnya. Hal ini terjadi karena berkurangnya peran masyarakat, pengelola, dan dinas terkait untuk merawat setiap peninggalan sejarah eropa yang berada di Ambarawa. Penelitian ini bertujuan untuk menganalisis kelayakan potensi wisata sejarah eropa tersebut. Teknik analisis skoring digunakan untuk mengevaluasi objek lanskap sejarah eropa sebagai objek wisata sejarah. Hasil analisis diklasifikasikan dalam bentuk kelas potensi. Hasil analisis yang tergolong sangat layak didapatkan pada Museum Kereta Api Ambarawa, dan Benteng Willem 1 (Benteng Pendem). Hasil analisis yang tergolong kurang layak didapatkan pada Gereja Santo Yusuf (Gereja Jago), SDN Panjang 03 Ambarawa, Kantor Kecamatan Ambarawa, Rumah Pemotongan Hewan (RPH) Ambarawa, dan Gedung Polsek Ambarawa serta Pegadaian Ambarawa. Hasil analisis yang tergolong kategori tidak layak yaitu Kawasan Pecinan Ambarawa. AbstractAmbarawa is one of the areas that has the potential for historical assets of typical European heritage and can be used as a historical tourist attraction. This European historical tourist attraction has the potential to bring in tourists who can improve the economy for the surrounding community. Tourists visiting historical attractions in Ambarawa are starting to experience a decline every year. This is due to the reduced role of the community, managers, and related agencies in caring for any European historical heritage in Ambarawa. This study aims to analyze the feasibility of the European historical tourism potential. The scoring analysis technique is used to evaluate European historical landscape objects as historical tourism objects. The results of the analysis are classified in the form of potential classes. The results of the analysis that are classified as very feasible are obtained at the Ambarawa Railway Museum, and Fort Willem 1 (Benteng Pendem). The results of the analysis that are classified as inadequate are obtained at the St. Yusuf Church (Gereja Jago), SDN Panjang 03 Ambarawa, Ambarawa District Office, Ambarawa Slaughterhouse (RPH), and Ambarawa Police Building and Ambarawa Pawnshop. The results of the analysis that are classified as inappropriate categories are Ambarawa Chinatown.
Komposisi Ekstrak Stevia (Stevia rebaudiana) Terhadap Karakteristik Sirup Bit (Beta vulgaris L.) Elvi Fitriani Simarmata; Maria Marina Herawati; Alfred Jansen Sutrisno; Yoga Aji Handoko
Jurnal Penelitian Pertanian Terapan Vol 19 No 3 (2019)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v19i3.1429

Abstract

Beetroots are a type of tubers with a distinctive purplish red color and are beneficial for health with a high amount of betasianin as an antioxidant, as well as its use in preventing infection. But the beetroot is less liked by the public because of the strong enough earthy taste, so it is necessary to do new innovations for the product to be accepted by the community, one of which is the functional beet syrup drink. To create a preferred flavor, the addition of other food additives and sweetener stevia which has a sweetness level of 200-300 times that of sugar and includes non-calorie sweeteners is done. This study aims to analyze the best concentration of stevia extract on the sweetness level and beetroot characteristics and determine the level of panelists' preference for beetroot syrup (Beta vulgaris L.) with organoleptic tests. This research was conducted with a randomized block design (RBD), the data were analyzed by variance (ANOVA), if the data obtained were significantly different, the DMRT would be further tested at 5% level. The results showed that the highest betasianin was in the SBS15 treatment (31.74 mg / l), the highest total dissolved solids was in the SBS treatment (3.25ºBrix), the highest pH was in the SBS15 treatment (4.22), the highest vitamin C was in the SBS15 treatment (11.66 mg ascorbic acid / 10 ml). Organoleptic results showed that beet syrup with the addition of stevia extract of 6% was the most preferred sample by panelists. 
ANALISIS PENGAMBILAN KEPUTUSAN PEMILIHAN LOKASI PEMBANGUNAN GRAVING DOCK DI KOTA AMBON DENGAN METODE ANALITYCAL HIERARCHY PROCESS Viktor O Lawalata; Alfred J. Sutrisno; G. Richard Latuhihin
ARIKA Vol 7 No 1 (2013)
Publisher : Industrial Engineering Study Program, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (737.122 KB)

Abstract

Galangan kapal di Provinsi Maluku umumnya hanya mampu melayani kapal berbobot rendah (<= 500 DWT). Untuk meningkatkan kapasitas tampung, maka graving dock diusulkan untuk menjadi alternatif tipe galangan kapal yang dibangun untuk melayani kapal antara 500 sampai 1000 DWT. Penelitian ini dikembangkan untuk menentukan lokasi yang paling tepat untuk dijadikan sebagai lokasi pembangunan galangan ini. Hasil penelitian ini menunjukkan bahwa berdasarkan 3 kriteria dan 11 sub kriteria, Desa Talake merupakan lokasi yang lebih tepat untuk pembangunan graving dock dengan keunggulan dari sisi kepadatan penduduk, sumber bahan bakar, stasiun pemadam kebakaran dan pelabuhan, yang ditunjang oleh kedalaman laut, gelombang, gempa bumi dan kadar logam tembaga (Cu) yang rendah.
Analisis Prediksi dan Hubungan antara Debit Air dan Curah Hujan pada Sungai Ciliwung di Kota Bogor Alfred Jansen Sutrisno; Kaswanto; Hadi Susilo Arifin
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 10 No. 1 (2020): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.10.1.25-33

Abstract

Water demand should be balance with water availability. The population of Bogor City was increased every year, so that water demand become increased. Currently, Government of Bogor City only utilizes the Cisadane river as a source for drinking water, but Bogor City has 2 rivers there are Cisadane river and Ciliwung river. So, Ciliwung river can be solution for this problem. Water discharge and rainfall influence water availability. Distribution log pearson type 3 used to predict the water discharge and rainfall and linier regression analyzed the relationship between water discharge (dependent variable) with rainfall as X1 and water level as X2 (independent variable). The result of distribution log pearson type 3 every return period 2, 5, 10, 25, dan 50 years is water discharge and rainfall were increased. Average increase of water discharge every return period is 1.6 m3/s and average increase of rainfall every return period is 251 mm. Partially, water discharge influenced by water level 97.7% and 2% by rainfall. But, = 0.000 < = 0.05. it is mean rainfall and water level cannot be ignored because it can influence water discharge with regression model = -3.01 + 0.000 X1 + 0.202 X2.
PENGARUH KOMPOSISI MEDIA TANAM TERHADAP PERTUMBUHAN DAN HASIL TANAMAN BUNGA GLADIOL (Gladiolus hybridus L.) eftrida yuliana pasaribu; Nugraheni Widyawati; Alfred Jansen Sutrisno
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 9, No 4 (2020): Desember 2020
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v9i4.353-360

Abstract

Tujuan penelitian ini adalah untuk mengetahui pengaruh komposisi media tanam terhadap pertumbuhan dan hasil bunga Gladiol serta menentukan komposisi yang paling baik dalam mendukung pertumbuhan dan perolehan hasil bunga. Penelitian dilakukan melalui percobaan menggunakan Rancangan Acak Kelompok (RAK), dengan 7 perlakuan komposisi media tanam yaitu P1 (tanah), P2 (tanah : arang sekam 1:1), P3 (tanah : arang sekam 1:2), P4 (tanah : arang sekam 2:1), P5 (tanah : cocopeat 1:1), P6 (tanah : cocopeat 1:2), P7 (tanah : cocopeat 2:1). Masing masing perlakuan ada dalam setiap kelompok yang sekaligus sebagai ulangan yang berjumlah 4 kelompok. Parameter yang diamati meliputi parameter fisik dan kimia media tanam yang terdiri dari pH, kadar air, dan NPK tersedia. Parameter pertumbuhan tanaman diamati melalui parameter tinggi tanaman dan jumlah daun serta hasil tanaman diamati melalui parameter jumlah bunga dan diameter bunga. Hasil penelitian menunjukkan bahwa komposisi media tanam tidak mempengaruhi tinggi tanaman dan jumlah daun, tetapi mempengaruhi jumlah bunga dan diameter bunga.  Media tanam yang memberikan hasil terbaik adalah media tanah (P1) dengan jumlah bunga sebanyak 11.67 kuntum dan diameter bunga sebesar 13.62 cm.Kata Kunci: arang sekam, cocopeat, gladiol
Co-Authors Adlia Vidya Rahmandari Adnin Maulana Al Faritsi Andree Wijaya Setiawan Ani P Astuti Antonius Wirangga Prasetyo Wicaksono Bangun, Yurin Bistok H. Simanjuntak Dhias Pradipta Ananda Dimas Karunia Pratama eftrida yuliana pasaribu Elvi Fitriani Simarmata G. Richard Latuhihin Gusti Diandasari Hadi Susilo Arifin Handoko, Muhammad Hermanto Isna Nugraha Wibawa Junaidi Margaretha Ines Nawangsari Melfrids Loisa Sumarauw Muhammad Syaiful Afrizal Nova Tri Surya Nugraheni Widyawati Regan Leonardus Kaswanto Syach Fahreza Tusanto Victor Oryon Lawalata Yayi Suryo Prabandari Yoga Aji Handoko Yosua Aprianto Kasim