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All Journal FORESTA Jurnal Serambi Engineering Journal of Sylva Indonesiana Jurnal Ilmiah Edunomika (JIE) JURNAL ILMIAH GLOBAL EDUCATION Journal of International Conference Proceedings Global Forest Journal International Journal of Global Sustainable Research Serambi Engineering
Achmad Siddik Thoha
Fakultas Kehutanan, Universitas Sumatera Utara, Medan
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Other

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THE ROLE OF WOMEN FARMERS' HUMAN RESOURCES IN PRODUCTION ACTIVITIES IN CORN FARMING IN KARO DISTRICT, NORTH SUMATRA PROVINCE Surbakti, Supriadi; Nasution, Zulkifli; Sihombing, Marlon; Thoha, Achmad Siddik
Journal of International Conference Proceedings Vol 7, No 1 (2024): 2024 ICPM Malaysia Proceeding
Publisher : AIBPM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32535/jicp.v7i1.2977

Abstract

The food crop commodity whose production continues to be increased to support national food needs is corn. Karo Regency is the largest corn producer in North Sumatra. In production activities on corn farming, the role ratio between the human resources of male farmers and female farmers is balanced, but the ratio of workers is more female farmers than male farmers. This research aims to analyze the role of female farmers' human resources in production activities and decision making in corn farming in Karo Regency. This type of research is a quantitative research method. The method for determining the research area was carried out purposively. The sampling method was carried out using Nonprobability Sampling using the Accidental Sampling technique. The data analysis method is in the form of qualitative and quantitative analysis based on the primary data and secondary data obtained. The research results show that the amount of labor provided by female farmers is higher than that of male farmers and the contribution of female farmers in decision making is very influential in production activities in corn farming in Karo Regency. Keywords: Human Resources, Women Farmers, Production, Corn Farming 
Karakteristik dan Persepsi Pengunjung untuk Pengembangan Wisata Edukasi di Taman Cadika Kota Medan Sembiring, Elfiyanti; Badaruddin; Thoha, Achmad Siddik
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Cadika Park has long been a popular public space for outdoor learning and social activities. The development of Cadika Park into an educational tourism area needs to take into account the characteristics and perceptions of visitors. The purpose of this study was to analyse visitor perceptions for the development of educational tourism in Cadika Park. The research data came from drone mapping, field observations and interviews with questionnaires on field conditions and visitor characteristics and perceptions. Descriptive analysis was used to describe the field and questionnaire data to provide an overview of field conditions and visitor characteristics and perceptions. Analysis in the form of tables and graphs that quantitatively describe the distribution of characteristics and opinions of respondents in relation to the availability of objects and the potential for educational tourism development. The study found that almost all respondents perceived that Cadika Park has educational tourism objects. The Cadika Park area has natural potential for educational tourism in the form of flora, fauna and water. According to most respondents, forests and lakes are the most interesting objects that are widely used for educational activities.
Analisis Sebaran Spasial Kerentanan Bencana Banjir di Kota Medan Tahun 2023 Juliana, Asima; Thoha, Achmad Siddik; Lubis, Satia Negara
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Flooding is one of the environmental problems that often occur in Medan City due to rapid urban development and land use change. This research aims to analyse the spatial distribution of flood vulnerability in Medan City based on the parameters of land use, slope, soil type, geology, distance from river and rainfall. The methods used in this research include Geographic Information System (GIS) analysis and weighting of flood vulnerability parameters using the scoring method. The data used included Sentinel 2 imagery for land use, DEM data for slope, CHRIPS for rainfall and SHP data for soil type and geology. The spatial distribution of flood vulnerability in Medan City shows a concentration in the southwest and central parts of the city. The spatial distribution of flood vulnerability is mostly at the high - very high vulnerability level, namely in the Belawan Sicanang area of 1,047.07 ha. high vulnerability level, namely in the Belawan Sicanang area of 1,047. 07 ha with a percentage of 12%, Martubung village area of 1,032 ha with a percentage of 11%, Kelurahan Besar area of 1,013 ha with a percentage of 11% and Pekan Labuhan village area of 1,022 ha with a percentage of 11%. Ha with a percentage of 11%. This research is expected to be a suggestion for spatial distribution developed as an early warning system for flood impacts in Medan City.
Determinasi Kepuasan Pelanggan dan Karakteristik Sosial Ekonomi terhadap Willingness To Pay untuk Air Siap Minum di Perumda Tirtanadi Medan Munthe, Mirian Jacquiline; Charloq, Charloq; Thoha, Achmad Siddik
JURNAL ILMIAH EDUNOMIKA Vol 8, No 4 (2024): EDUNOMIKA
Publisher : ITB AAS Indonesia Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29040/jie.v8i4.15504

Abstract

Under the Sustainable Development Goals (SDGs), one of the key targets is to ensure the availability and sustainable management of water and sanitation for all, with the goal of achieving universal and equitable access to safe and affordable drinking water for the entire global population. To implement the development of ready-to-drink water systems to house connections, it is important to ensure that people are willing to pay the cost. This study aims to evaluate the influence of customer characteristics and satisfaction on Willingness To Pay (WTP) in the development of ready-to-drink water in Perumda Tirtanadi Medan services. WTP analysis is influenced by customer characteristics such as number of family members, type of employment, education level, income, and house size. In addition, customer satisfaction with the quality of drinking water already available in several public facilities in Medan City was also analyzed to understand its influence on Willingness To Pay. Customer satisfaction factors are influenced by average water usage, monthly water account payment fees, clarity, odor, taste, color, water discharge and frequency of water flow. The methodology used included multiple linear regression analysis, classical assumption testing, and reliability analysis. The results of the analysis show that WTP is positively and significantly influenced by customer characteristics and customer satisfaction. This analysis is expected to provide guidance for Perumda Tirtanadi in developing ready-to-drink water to house connections in Medan City. Keywords: Willingness To Pay; Perumda Tirtanadi; customer characteristics; customer satisfaction
Vegetation Composition of the Succession Forest of Sumatran Orangutan (Pongo abelii) Habitat in Tropical Lowland Forest, Gunung Leuser National Park Ardi, Rio; Onrizal; Thoha, Achmad Siddik; Mansor, Mashhor
Journal of Sylva Indonesiana Vol. 8 No. 01 (2025): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jsi.v8i01.12891

Abstract

The Gunung Leuser National Park (GLNP) area, among others, consist of tropical lowland-forest ecosystems that becomes the habitat of Sumatran orangutans (Pongo abelii). The GLNP is located at Aceh dan North Sumatra Provinces and lies on 830,268,95 hectares of land. To date, the area is not free from the pressure of forest degradation, such as encroachment and land conversion to plantations. This is a perturbing condition, especially concerning the biodiversity in its lowland-forest ecosystem. The vegetation composition that renders the succession of Sumatran orangutans in the GLNP lowland-forest was obtained by conducting vegetation analysis on the restoration sites in the forest. The analysis method adopted on this research was the grid-path method. Two transect lines, 1,000 metres each, were made for this purpose. Each line consisted of 10 plots with a distance of 100 metres between plots. The measurements were made on the growth rate of seedling, sapling, pole, and tree. The data were then processed to determine the Important Value Index (IVI), Diversity Index, Richness Index of vegetation, and Dominance Index of the research area. The results showed that the vegetation composition that rendered the succession of lowland-forests of GLNP consisted of 58 species and 26 families. Ficus fistulosa had the highest IVI at the growth-stages of seedling and sapling. And Macaranga tanarius had the highest IVI at the growth-stages of pole and tree. The species Diversity Index (Shannon-Wiener index) of the vegetation on the restoration site in lowland forests of GLNP showed moderate values at the growth-stage of seedling and pole, and high values at the growth-stages of sapling and tree. The Richness Index of vegetation showed moderate values at the growth-stages of seedling and pole. As for at the stages of sapling and tree, it showed high values. The Dominance Index of the restoration site in lowland forests of GLNP showed high values at all growth-stages.
Penentuan Lokasi Alternatif Tempat Pembuangan Akhir Sampah Di Kecamatan Bathin Solapan Kabupaten Bengkalis Uliwati, Elisa; Lubis, Satia Negara; Thoha, Achmad Siddik
Jurnal Serambi Engineering Vol. 10 No. 2 (2025): April 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The increase in waste generation and the lack of waste management efforts in landfills (TPA) continuously causes the capacity of the landfill to be full. Determination of the location of a new landfill designation is one solution to avoid environmental pollution problems. The purpose of this study is to determine the location of the waste landfill feasible zone based on regional criteria and determine the location of alternative waste landfill designations based on the exclusion criteria in Bathin Solapan District. This research uses primary data and secondary data. The research method used is descriptive research with a quantitative approach. In this research, the location of waste landfill is determined by adjusting SNI 19-3241-1994 and analyzed by overlay analysis and scoring. The samples in this study were several locations determined from the results of overlaying several land unit maps. Sampling was done by purposive sampling. The results showed that there was a waste landfill feasibility zone in Bathin Solapan District covering an area of 21,831.1 Ha spread across 13 villages. The alternative location of the waste landfill designation based on the elimination criteria is located in Petani Village, Jalan Rangau km 17 with a land area of 9.16 Ha and a suitability value of 664. Based on the opt-out stage analysis, the selected alternative site has a more positive socio-economic impact compared to the other sites.
Analisis Perubahan Penggunaan Lahan pada Area Sekitar Stasiun Bandar Khalipah Kabupaten Deli Serdang Sumatera Utara Sugianto; Hadinugroho, Dwi Lindarto; Thoha, Achmad Siddik
Jurnal Serambi Engineering Vol. 10 No. 2 (2025): April 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Sustainable urban planning requires the integration of land use and transport to create efficient, safe and sustainable areas. One approach that supports this is the impact of regional development due to station operations, as illustrated by land use change. This research aims to analyse the land use change around Bandar Khalipah Station in Deli Serdang Regency as a potential area for TOD development in the future. This research uses visual interpretation method to classify land use using Google Earth satellite images in the period of 2014, 2018 and 2024. Data analysis was conducted by analysing the land use area and land use change matrix in the period of 2014 - 2024. The results of this study showed that there were changes in land use from the period 2024 - 2024. Land use in the area around Bandar Khalipah Station consists of six types, namely public areas and green open spaces, station and railway areas, commercial areas, offices, settlements and roads. Land change in 2014-2024 is most dominant in public areas and green open spaces. Public areas and green open spaces experienced a decrease in area due to land change into commercial and residential areas, so these two land categories experienced a significant increase in area.
Faktor-faktor yang Mempengaruhi Pengelolaan Sampah Berbasis Masyarakat di Kelurahan Bantan Kecamatan Siantar Barat Kota Pematangsiantar Simanungkalit, Chrissanty; Thoha, Achmad Siddik; Charloq, Charloq
Jurnal Serambi Engineering Vol. 10 No. 2 (2025): April 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The purpose of this study is to examine the variables that affect the participation of residents of Bantan Village, West Siantar District, Pematangsiantar City in community-based waste management. Cross-sectional study using logistic regression and descriptive analysis is the methodology used. Data were collected through interviews, observations and questionnaires from local communities in the period October to December 2024. Logistic regression analysis uses one independent variable, which is community-based waste management. The independent variables used to find significant factors in community-based waste management are eight variables, namely income (X1), education (X2), knowledge (X3), attitude (X4), facilities and infrastructure (X5), exposure to information media (X6), the role of community leaders (X7), and the availability of waste retribution (X8). The regression model formed from the regression analysis of community-based waste management is LOG (ODDS) =-4.803-5.047X1+2.269X2-0.278X3-4.120X4+3.792X5+4.932X6-3.957X7+3.078X8. Statistically significant factors are income, education, facilities and infrastructure, exposure to information media, and availability of waste collection. The largest factor influencing community-based waste management is exposure to information media, which accounts for more than half of the total influence with a percentage of around 57.6%.
Co-Authors Agus Purwoko Alfan Gunawan Ahmad Ambarita, Rolasdo Ardi, Rio Badaruddin Bejo Slamet Charloq Darmanto Silaban Dwi Lindarto Hadinugroho Edwar Darmansyah Pohan Erwin Nyak Farakh Yolanda Koilola Geniusmaniat Laia Hadinugroho, Dwi Lindarto Juliana, Asima Junalisman Harefa Koilola, Farakh Yolanda Mansor, Mashhor Marlon Sihombing Muhammad Taufiq Munthe, Mirian Jacquiline Nurdin Sulistiyono Onrizal Onrizal Riki Jaya Dinata Satia Negara Lubis Sembiring, Elfiyanti Simanungkalit, Chrissanty Sugianto Sulaiman Sulaiman Surbakti, Supriadi Tika Yuana Sari Uliwati, Elisa Zulkifli Nasution Zulkifli Nasution Zulkifli Zulkifli