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All Journal JURNAL ADMINISTRASI PUBLIK Agro Bali: Agricultural Journal Biofaal Journal Journal of Agriculture (JoA) AGRI-SOSIOEKONOMI Bulletin of Social Informatics Theory and Application COCOS EKOTON
Sandra Pakasi
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Economics, Econometrics & Finance Environmental Science Materials Science & Nanotechnology Medicine & Pharmacology Social Sciences

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ANALISIS INDEKS KUALITAS LINGKUNGAN HIDUP DI KOTA MANADO DOTULONG, JACKY; POLII, BOBBY; PAKASI, SANDRA
JURNAL ADMINISTRASI PUBLIK Vol 6, No 97 (2020)
Publisher : Sam Ratulangi University

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

Abstract

Environment is an importan issue and complex. The rate of population growth and developmentgreatly affects the quality of the environment in Manado City. Environmental quality is an environmentalcondition that can provide optimal carrying capacity for human survival in an area. Environmental qualityincludes water quality, air quality, and land cover quality. This study aims to analyze the EnvironmentalQuality Index in Manado City which includes the Water Quality Index, Air Quality Index, and Land CoverQuality Index.The method used in this research is descriptive quantitative. Measurement of water quality was carriedout in three major rivers in Manado City, namely the Tondano River, the Sario River, and the MalalayangRiver. From each river, measurements of water quality were carried out at two points, including theupstream and downstream areas with the measured parameters TDS, TSS, BOD, COD, and DO. Analysisof water quality using the Pollution Index (PI) method and then converted into the Water Quality Indexvalue. Measurement of air quality were carried out at three points, including office, transportation, andresidential areas with parameters measured as SO2 and NO2. Analysis of air quality using a calculation ofthe European Union (EU) model of Air Quality Index and then converted into an Air Quality Index value.Measurement of land cover quality is carried out by calculating the land cover index, namely measuring thearea of Manado City and the area of green land or forest using ArcGIS Software. The land cover value isobtained from the division between the area of green land or forest and the area of Manado City and thenconverted into the Land Cover Quality Index value. Analysis of Environmental Quality was carried out bycalculating the Environmental Quality Index in Manado City, namely the value of the Water Quality Index(30%), Air Quality Index (30%), and Land Cover Quality Index (40%).The quality of water in Manado City based on the parameter test showed a decrease in quality wherethe parameters of BOD, COD, and DO exceed the quality standards according to PP 82 of 2001 while thestatus of water quality in the mildly polluted category was based on KepMen LH 115 of 2003. The value ofthe Water Quality Index obtained 80. The Quality of Air in Manado City based on the results of monitoring,the highest values of SO2 and NO2 in the transportation area. The value of the Air Quality Index obtained30,56. The Quality of Land Cover in Manado City is based on the calculation of the Land Cover Indexobtained 0,72. The Land Cover Quality Index value obtained 89,60. The results of the EnvironmentalQuality Index value for the City of Manado obtained 69 with the predicate Fairly Good.Based on the results of the study, it can be concluded the Environmental Quality Index in Manado Cityis fairly good. It is recommended for Manado City Goverment in achieving a better environmental conditionneeds to increase activities that are managing and providing protection for the environment in Manado City.Keywords: Environmental Quality Index
ANALISIS JARINGAN IRIGASI BENDUNGAN SANGKUB KABUPATEN BOLAANG MONGONDOW UTARA BERBASIS SPASIAL Amalludin S. Kono; David P. Rumambi; Sandra Pakasi; Hildy Wulur
COCOS Vol. 4 No. 5 (2014)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v4i5.4765

Abstract

ABSTRACTSangkub dam was built in 2005, before the establishment of the regency of NorthBolaang Mongondow. This dam, with an approximate width of 100 meters, is planned toirrigate 3.601 ha of rice fields in two districts: Sangkub and Bintauna. In 2012, the damstarted operating and irrigated the rice fields in Sangkub. This research aims to provideinformation about the conditions of the irrigation network of Sangkub dam based on spatialanalysis. This research was conducted over the course of six months (August 2013 – January2014) in Sangkub dam, Sangkub district. Data was collected through surveys, image analysesand experiment using buoys. This research shows that Sangkub’s irrigation network does notmatch the planned schematics regarding number of buildings. There is a lack of floodgates inthe secondary channels in Tombolango and there are five overflow points and one leakagepoint in the irrigation channels of Sangkub dam.Keywords: Irrigation network, Sangkub dam, Spatial
TINGKAT BAHAYA EROSI DI SUB DAS TONDANO BAGIAN TIMUR DENGAN APLIKASI SISTEM INFORMASI GEOGRAFI Irene R.S. Terok; Sandra Pakasi; Joice Supit; Tilda Titah
COCOS Vol. 6 No. 1 (2015)
Publisher : Universitas Sam Ratulangi

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Abstract

ABSTRACTThis study head to analyze the level of erosion (TBE) which occur in the eastern part of watershed Tondano with Geographical Information Systems Applications. The method used in the calculation is the USLE erosion and analysis degree erosion using a table of erosion potential based Geographical Information Systems. Observed variables are rainfall, soil erodibility, length and slope, crop management, soil conservation management. The results showed the level of erosion that occurs in watershed Tondano eastern part is divided into five classes: very heavy (SB), weight (B) moderate (S) light (R), and very light (SR). Very heavy class (SB) with and area of 719.20 hectares or 3.21%. weight (B) with and area of 17.07 hectares or 0.40% for, the class of moderate (S) with an area of 3250.13 or 77.35%. and for the lightweight class (R) with and area of 79.91 hectares or 0.40%. whereas for the classification of very light (SR) with and area of 135.01 hectares or 3.21%.keywords: Rainfall, soil Erodibility, length and Slopes, Crop Management, Land Use.
STATUS UNSUR HARA DAN pH TANAH DI DESA SEA, KECAMATAN PINELENG KABUPATEN MINAHASA Silwasty Kotu; Jenny J. Rondonuwu; Sandra Pakasi; Tilda Titah
COCOS Vol. 6 No. 12 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i12.8542

Abstract

Abstract The study aims to determine the status of soil nutrients and pH in the village Sea, sub Pineleng Minahasa district. This research was conducted in January to April 2015 using a survey method, in which soil samples were taken by slope and land use. Soil samples were taken at five points at a depth of 0 to 40 cm and 40 cm larger. The variables measured were nitrogen (Kjedhal method), phosphorus (Bray I method), Potassium (Bray method I), C- organic (Walkley and Black method) and soil pH (pH meter). Research data analysis using descriptive analysis. The results showed that soil pH in the research sites is in the range of 6.29 to 6.48, the content of the element nitrogen is in the range of 0.12% to 0.27%), phosphorus content in the range of 8.60 ppm to 14.29 , potassium element content is in the range of 1.72 ppm to 11.95 ppm, and organic matter content of 1.52% to 3.17%. Keywords: C-organic, Phosphorus, Potassium, Nitrogen, pH
ANALISIS EFISIENSI PENYALURAN AIR IRIGASI DENGAN SISTEM INFORMASI GEOGRAFIS BENDUNGAN LOMAYA KABUPATEN BONE BOLANGO PROVINSI GORONTALO Yurizal Biahimo; David Rumambi; Daniel Ludong; Sandra Pakasi
COCOS Vol. 6 No. 15 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i15.8816

Abstract

ABSTRACT Bone Bolango district of Gorontalo province is well developed in agriculture. There are three dams in this province and one of them is Lomaya dam. This dam has not yet used technology of geographic information system for evaluating the efficiency of water distribution in the irrigated area. Therefore the measurement of water discharge and the information of spatial irrigated areas are required. The inflow and outflow discharges were measured in each irrigated channel using a bottle buoy. The result of the research showed that the efficiencies of primary, secondary and tertiary channels were 82,25 %, 78,58 % and 77,99 % respectively.The total efficiency of water distribution of irrigated area in Lomaya was 50,41 %. Geographic information system in these irrigated area of Lomaya served the map of irrigated area. Keywords: Efficiency, Irrigation, Geographic Information System, Dam Lomaya
ANALISIS KEHILANGAN AIR PADA JARINGAN IRIGASI BENDUNG TALAWAAN KABUPATEN MINAHASA UTARA Farano M. Pongoh; David P. Rumambi; Sandra Pakasi; Daniel Ludong
COCOS Vol. 6 No. 17 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i17.10530

Abstract

ABSTRACT Talawaan dam, North Minahasa Regenc that was built in 1912, was planned to irrigate 1037 ha paddy field covering five villages, i.e. “Desa Kolongan”, “Desa Talawaan”, “Desa Tumbohon”, “Desa Winetin”. The objective of this research was to inform the physical condition of irrigation network system in Talawaan Dam. This research was conduced from November 2014 - Februari 2015 (4 Months). The data was collected usong survey method, float measurements. The result showed that the irrigation network system in this dam was not appropriate with the planned scheme based on the number of (water structures) and irrigated field area. In addition, there was water loss because of overflowing and leakage in the irrigation network.   Keywords :Talawaan Dam , Irrigation  
STATUS KESUBURAN KIMIA TANAH DI KECAMATAN MAPANGET KOTA MANADO Nining Soleman; Jenny J. Rondonuwu; Sandra Pakasi
COCOS Vol. 10 No. 5 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.24359

Abstract

ABSTRACT  The study aimed to determine the soil chemical fertility status in Mapanget District, Manado City. This research was conducted from January to April 2018. The research method used is the survey method, where soil samples are taken at six points based on land use. Nutrients analyzed were Nitrogen (Kjedhal Method), Phosphorus (Bray I Method), Potassium (Bray I Method), Organic C (Walkley and Black Method) and pH (Kjedhal Method). The data obtained were analyzed descriptively. The results showed that soil pH in the study location was in the range of 6.49 to 6.80, the elemental content of nitrogen was in the range of 0.15% to 0.24%, the content of phosphorus was in the range of 11.56 ppm to 23.16 ppm, the content of Potassium is in the range of 14.58% to 33.65%, and the C-organic content is in the range of 1.87% to 2.22%.  Keywords : Nitrogen, Phosphorus, Potassium, C-organic, pH
Web-Based System for Medicinal Plants Identification Using Convolutional Neural Network Latumakulita, Luther; Mandagi, Franklin; Paat, Frangky; Tooy, Dedie; Pakasi, Sandra; Wantasen, Sofia; Pioh, Diane; Mamarimbing, Rinny; Polii, Bobby; Pongoh, Jantje; Pinaria, Arthur; Tenda, Edwin; Islam, Noorul
Bulletin of Social Informatics Theory and Application Vol. 6 No. 2 (2022)
Publisher : Association for Scientific Computing Electrical and Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31763/businta.v6i2.601

Abstract

Indonesia has a variety of medicinal plants that are efficacious for preventing or treating various diseases. Each region has unique medicinal plants, such as in North Sulawesi, there are many medicinal plants with local names of "Jarak" (Jatropha curcas), "Jarak Merah" (Jatropha multifida), "Miana" (Coleus Scutellarioide), and "Sesewanua" (Clerodendron Squmatum Vahl). This research applies the Convolutional Neural Network (CNN) method to identify the types of medicinal plants of North Sulawesi based on leaf images. Data was collected directly by taking photos of medicinal plant leaves and then using the augmentation process to increase the data. The first stage is conducting training and validation processes using 10-fold cross-validation, resulting in 10 classification models. Evaluation results show that the lowest validation accuracy of 98.4% was obtained from fold-4, and the highest was 100% from fold-2. The third stage was to run the testing process using new data. The results showed that the worst model produced a test accuracy of 80.91% while the best model produced an accuracy of 87.73% which means that the identification model is quite good and stable in classifying types of medicinal plants based on its leaf images. The final stage is to develop a web-based system to deploy the best model so people can use it in real-time
Spatial Mapping of Coconut Plantation in Airmadidi District, North Sulawesi Using Geographical Information System Rotinsulu, Wiske; Margaretha, Geby; Pakasi, Sandra
Journal of Agriculture Vol. 2 No. 03 (2023): Research Articles, November 2023
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v2i03.3405

Abstract

Coconut (Cocos nucifera L.) known by many as the "tree of life is a leading agricultural commodity in North Sulawesi. Coconut is one of the most significant palm crops for both commercial and subsistence use worldwide. Airmadidi District has the potential for plantation land, especially coconut, which is indicated by the area of ??coconut plantation land in Airmadidi in 2021 of 3,373.13 Ha. This research aims to produce spatial mapping of coconut plantation in Airmadidi District using visual interpretation techniques; and to determine the area of ??coconut plantations in Airmadidi District. Visual interpretation method using on screen classification of satelite imagery SPOT 2022 obtained from SAS Planet.  Images were digitized with a geographic information system using ArcGIS 10.8.2 software. The results of the visual interpretation show a map of the distribution of coconut plantations spread across all villages in Airmadidi District, North Minahasa Regency. The total area of coconut plantations in Airmadidi District is 3 023 Ha. Tanggari village has the largest spread of coconut plantations, namely 870,460 Ha, while Sarongsong Satu village has the smallest area, only 2.24 Ha. There was a decrease in the area of coconut plantation during the period of three year which was 305,51 Ha.  The decline in the area of coconut plantations in North Sulawesi, especially in Airmadidi District, is thought to be caused by the conversion of coconut plantation land into residential or industrial areas.
Evaluation of Land Suitability for Durian (Durio zibethinus M.) Plants In Kombi District, Minahasa Regency Based on Geographic Information Systems Pakasi, Sandra; Siahaan, Anatasya; Najoan, Jemmy; Pioh, Diane; Wantasen, Sofia
EKOTON Vol. 4 No. 1 (2022): ISSUE JANUARY - JUNE 2022
Publisher : PPLH-SDA, Lembaga Penelitian Unsrat Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35801/ekoton.v5i1.49530

Abstract

This study aims to determine the land suitability class and the distribution map of the durian land suitability class in Kombi District by utilizing the Geographic Information System (GIS). This research was conducted using a survey method in the field. In this study, land units were obtained from the results of overlaying land use maps, soil types, and slopes consisting of 52 land units. The results of this study are that the land suitability class for durian plant development in Kombi District is divided into 2 class classifications, namely marginally suitable (S3) with limiting factor for soil texture (r) and nitrogen (n) and not suitable (N) with slope factor (e) The distribution of land suitability class for durian plants in Kombi District is for marginally suitable class (S3) with an area of 5276.71 ha spread over 16 land units and non-suitable class (N) with an area of 2153.44 ha spread over 7 land units. Keywords: Geographic information system (GIS), land suitability evaluation, durian plant Abstrak Penelitian ini bertujuan untuk mengetahui kelas kesesuaian lahan dan peta persebaran kelas kesesuaian lahan durian di Kecamatan Kombi dengan memanfaatkan Sistem Informasi Geografis (SIG). Penelitian ini dilakukan dengan menggunakan metode survei di lapangan. Pada penelitian ini satuan lahan diperoleh dari hasil overlay peta penggunaan lahan, jenis tanah, dan lereng yang terdiri dari 52 satuan lahan. Hasil penelitian ini kelas kesesuaian lahan untuk pengembangan tanaman durian di Kecamatan Kombi terbagi menjadi 2 klasifikasi kelas yaitu sesuai marginal (S3) dengan faktor pembatas tekstur tanah (r) dan nitrogen (n) dan tidak sesuai (N). ) dengan faktor kemiringan (e) Sebaran kelas kesesuaian lahan untuk tanaman durian di Kecamatan Kombi adalah untuk kelas sesuai marginal (S3) dengan luas 5.276,71 ha yang tersebar di 16 satuan lahan dan kelas tidak sesuai (N) dengan luas 2153,44 ha yang tersebar di 7 satuan lahan. Kata kunci: Sistem informasi geografis (SIG), evaluasi kesesuaian lahan, tanaman durian.
Co-Authors Amalludin S. Kono Arthur G. Pinaria Bobby Polii Daniel Ludong Daniel Ludong, Daniel David P. Rumambi David Rumambi David Rumambi, David Dedie Tooy DOTULONG, JACKY Farano M. Pongoh Farano M. Pongoh, Farano M. Frangky J. Paat Hengki D. Walangitan Hildy Wulur Irene R.S. Terok Islam, Noorul Jantje Pongoh Jemmy Najoan, Jemmy Jenny J. Rondonuwu Joice Supit Kawung, Yosua Lumingkewas, Adeleyda M. W. Luntungan, Jooudie Luther Latumakulita Mandagi, Franklin Margaretha, Geby Nining Soleman Noeng, Masshynio Ch. A. Pioh, Diane Rinny Mamarimbing Sabintoe, Bernat Selvie Tumbelaka Siahaan, Anatasya Silwasty Kotu Silwasty Kotu, Silwasty Sofia Wantasen Tenda, Edwin Tilda Titah Wiske Rotinsulu Yurizal Biahimo Yurizal Biahimo, Yurizal