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Jurnal Sains Teknologi dan Lingkungan (JSTL)
Published by Universitas Mataram
ISSN : 24770329     EISSN : 24770310     DOI : -
Core Subject : Health, Science, Agriculture,
Agriculture, Biological Sciences & Forestry Computer Science & IT Public Health
Jurnal Sains Teknologi dan Lingkungan (JSTL), merupakan media untuk publikasi tulisan asli yang berkaitan dengan sains teknologi dan lingkungan baik dalam Bahasa Indonesia maupun Bahasa Inggris. Jurnal Sains Teknologi dan Lingkungan (JSTL) merupakan jurnal ilmiah terbitan berkala dua kali setahun (Juni dan Desember).
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Articles 335 Documents
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Perbandingan Stok Karbon Berbasis Penggunaan Lahan dan Rencana Pola Ruang pada Wilayah Perencanaan III Kota Singkawang: Comparison of Carbon Stock Based on Land Use and Spatial Pattern Plans in Planning Area III of Singkawang Siska Ita Selvia; Taufiqurrahman Taufiqurrahman; M. Irvan Kurnia
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 9 No. 2 (2023): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v9i2.417

Abstract

Climate change is a strategic global issue and its concern to many regions in Indonesia because it will impact the sustainability of many sectors. One of the causes of climate change is the existence of Green House Gases (GHG), especially carbon dioxide (CO2), which has the highest concentration in the atmosphere due to human activities. Massive development activities have caused the dynamics of changes in land use from undeveloped land to built-up land. Singkawang City Singkawang City has a population that continues to increase, namely in the period 2010-2020 it has a population growth rate of 2.27%. This of course can trigger a conflict of space requirements that are not proportional to the availability of existing land. Planning Area (WP) III of Singkawang City, which currently has a higher proportion of undeveloped land than built-up land, will faced challenges, due to the many development plans such as airports, industrial allotment areas and other supporting facilities. Of course, this will triggered changes in land use functions which can reduce carbon stocks. Therefore, the purpose of this study is to compare carbon stocks based on existing land use classes and the area of each type of money polar plan according to the Detailed Spatial Plan (RDTR) of WP III. The analytical method used is to analyze carbon stocks using conversions from the 2012 Directorate General of Forestry Planning standards and using the GHG calculator developed by ICLEI-Local Governments for Sustainability. The result of this study is that there is a decrease in carbon stocks in the spatial pattern plan (233.267,15 tons C) compared to carbon stocks based on the existing land use class in WP III (236.224,78 tons C). This shows that there is a difference of 2.957,63 tonnes C or a decrease in carbon stocks of 1,3%.
Willingness To Pay Sampah di Kota Berkembang: Studi Kasus Kota Meureudu Provinsi Aceh, Indonesia: Willingness To Pay For A Waste Management In A Developing Town: Case Study Of Meureudu City, Aceh Province, Indonesia Nurul Muhshanati; Cut Azizah; Rahmat Abbas
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 9 No. 2 (2023): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v9i2.440

Abstract

Waste become one of the undermined issues faced in many countries, including Indonesia. Meureudu City in Aceh Province, Indonesia, is currently under development process to optimize its waste management. The waste issue in the city originated from the insufficient waste retribution cost. This study aims to analyze Willingness to Pay (WTP) in the case of waste generation. We use a survey method by conducting field observation with the community of Meureudu City as our sample, which amounted to 110 respondents. Our study showed that female housewife is the main gender in household waste management. Factors of the age group of 31-40 years (35%), bachelor and diploma education level (42%), high income, and family member > 4 persons (28%) are affecting the WTP. We also managed to gather information on the average waste of Meureudu City which amounted to 1,5 kg/person/day, exceeding the Ministerial Law of Environmental and Forestry (0,7 kg/person/day). Our study revealed the average WTP for waste management by the community of Mereudu City is IDR 9.218,18/household, which is higher compared to the regulated retribution cost. These additional costs will be beneficial to improve better waste management.  
Kemampuan Penyerapan dan Reduksi Lengas Tanah Pada Media Polybag Kombinasi Tanah dan Kompos: Soil Moisture Absorption dnd Reduction Capability In Polybag Media Combination of Soil and Compost I Dewa Gede Jaya Negara; Salehudin Salehudin; Suparjo Suparjo; Anid Supriyadi; Humairo Saidah; Lalu Dwiki Axela Andriawan
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 9 No. 2 (2023): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v9i2.447

Abstract

Soil moisture is an important factor needed by plants for growth, and therefore the amount of soil moisture that can be stored depends on the type of soil or the composition of the soil-forming materials. Compost is one of the nutrients that is often used in the manufacture of planting media on land in the form of polybags, and the amount of compost composition on the soil is thought to greatly affect the ability to store water in the media. This study aims to test drip irrigation on a mixture of compost and soil on storage of irrigation water. Tests were carried out at a ratio of 70%: 30%, 50%: 50% and 30%: 70%. Irrigation was tested at a duration of 5 minutes, 10 minutes, and 15 minutes, and the data analyzed included irrigation distribution data, discharge, soil moisture data (w) and daily soil moisture change data. The results of the analysis are presented in the form of tables and graphs, then discussed and concluded descriptively. The results of the analysis show that the flow rate obtained is greater if the difference in water level to the land is greater, and the average Cu value obtained is 95.79% which is very good. With initial soil moisture in the range of 19%-25, soil moisture gain obtained by drip irrigation for 5 minutes -10 minutes is around 12%, and for a duration of 15 minutes soil moisture gain is obtained by 8% -21%. The lowest recharge was obtained on land with 30% soil and 70% compost of 8%-12%. The amount of soil moisture reduction after 24 hours of irrigation test was 6% - 17%, the lowest reduction was at 70% compost and 30% soil around 6%.
Kajian Rekayasa Lalu Lintas Simpang TNI AU Rembiga Akibat Rekayasa Sistem Satu Arah pada Jl. Dr. Wahidin : Traffic Engineering Study of the TNI AU Intersection Rembiga Due to One Way System Engineering at Dr. Wahidin Street Anwar Efendy; Titik Wahyuningsih; Nurul Hidayati
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 9 No. 2 (2023): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v9i2.449

Abstract

TNI AU Rembiga intersection is a three-way link between the central point of Mataram city, which is also connected to the Rembiga intersection and the Dakota intersection, Rembiga. Dr. Wahidin street is an economic pathway for education, offices, and trade. At certain times, the traffic flow is very congested because the road is also the direction to West Lombok district. Based on observations at the research location, it was found that the distance between the Rembiga intersection and the TNI AU intersection was 322.8 meters which caused the movement of traffic flow to be less than optimal between the intersection distances so that it would affect performance at TNI AU intersection. For this reason, the purpose of this study was to examine the performance of the unsignalized intersection at the TNI AU Rembiga intersection due to the continued flow from the Rembiga intersection which is a signalized intersection due to a one-way system engineering carried out on the Dr. Wahidin street and before the implementation of the one-way system on the Dr. Wahidin street. This research was conducted with reference to the MKJI 1997, in which researchers conducted field observations, then collected primary data and secondary data. There is traffic flow engineering on Dr. Wahidin street, by creating a one-way system, had an impact on changing the performance of the unsignalized intersection at the TNI AU intersection to a level of service F with obstructed flow conditions, low speed whereas, before the implementation of the one-way system the level of service was E with stable flow conditions, stalled vehicles.
Identifikasi Sebaran Spasial dan Kerapatan Mangrove Gili Lawang menggunakan Citra Landsat 9 OLI-2/TIRS-2: Identification Gili Lawang Mangrove Spatial Distribution and Density with Landsat 9 OLI-2/TIRS-2 Imagery Andrie Ridzki Prasetyo; Niechi Valentino; Muhammad Anwar Hadi
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 9 No. 2 (2023): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v9i2.450

Abstract

Mangrove ecosystems have a great influence on the sustainability of human life and the environment. The high level of vulnerability of mangrove ecosystems has implications for the importance of quality planning. This study aims to identify the spatial distribution and density of mangrove forests in Gili Lawang using Landsat 9 OLI-2/TIRS-2 satellite imagery. Data processing is done with the help of the QGIS 3.30 application. Data processing consists of band combinations, image classification with the SVM algorithm, classification results accuracy test, NDVI value extract, and reclass NDVI. The results showed that the use of band 564 in Landsat 9 imagery visually resulted in an increase in sharpness in identifying mangrove ecosystems. Classification of objects with the SVM algorithm has overall accuracy and kappa accuracy > 80%. The identified area of Gili Lawang is 432.72 ha, consisting of 37.89 ha of mangroves, 58.11 ha of non-mangrove and 3.75 ha of water bodies. NDVI values at the study sites ranged from 0.068 to 0.87. The maximum NDVI value is found in mangrove objects, while the minimum NDVI value is found in water body objects. Mangrove density in Gili Lawang is dominated by high and very high density. The use of Landsat 9 OLI-2/TIRS-2 imagery in the future is expected to provide positive benefits in providing data and information related to natural resources.  
Pemberian Daun Pepeya (Carica Papaya Linn) terhadap Kecernan Nutrisi Pakan dan Performa Ayam Joper : Determine the effect of giving papaya leaves on the digestibility of feed nutrients and the performance of Joper Chikens Sumiati Sumiati; Syamsuhaidi Syamsuhaidi; Erwan Erwan; Dwi Kusuma Purnamasari; Vebera Maslamivera; IKG. Wiryawan; M. Wahyu
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 9 No. 2 (2023): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v9i2.466

Abstract

The research aimed at determaining the effect of giving papaya leaves on the digestibility of feed nutrients and the performance of Joper chikens has been carried out at the Teaching Farm of the Faculty of Animal Husbandry Unram Lingsar, Lingsar District, West Lombok. 100 Joper chickens aged 1 week were grouped into 5 treatment groups (P0, P1, P2, P3, P4) each group consisting of 4 replicates, each repetition consisting of 5 individuals. The feed given was CP511B and CP512B complete feed with a protein content of 18-19% and papaya leaves were given through drinking water in the form of juice. Each treatment was given papaya leaf juice as much as 5 ml/liter of drinking water (P1), 8 ml/liter of drinking water (P2), 11 ml/liter of drinking water (P3), 14ml/liter of drinking water (P4) and drinking water without papaya leaf juice ( P0) adlibitum. The variables measured were feed consumption, body weight gain, feed conversion. crude protein digestibility, crude fiber digestibility. Research data were analyzed by analysis of variance on the basis of a completely randomized design. The results of the study showed, feed consumption, body weight gain, feed conversion, crude protein digestibility, crude fiber digestibility of the five treatments was not significantly different (P>0.05). Beconcluded that determain of papaya leaf juice through drinking water up to 14 ml/liter of drinking water did not affect feed consumption, crude protein digestibility, crude fiber digestibility, body weight gain and feed conversion of Joper Chickens.
Keanekaragaman Lumut sebagai Bioindikator Kualitas Udara di Kawasan Taman Wisata Alam Suranadi dan Ruang Terbuka Hijau Udayana: Moss Plant Diversity as a Bioindicator of air Quality in Suranadi Natural Park and Green Open Space of Udayana Isrowati Isrowati; Immy Suci Rohyani; Ernawati Ernawati; Cahyo Aditya Akbar; Elisa Darmayanti Wahyuni; Wildanniati Purnamasari
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 9 No. 2 (2023): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v9i2.467

Abstract

Different intensity of transportation in Suranadi Natural Park and Green Open Space of Udayana effected in air quality. Decreasing of the air quality will have a serious impact on the enviroment, human health and the economy. Moss can accumulate pollutants and is sensitive to air quality degradation. it can be used as a bioindicator. The aim of the research was to determine the diversity index, abundance index of mosses and analyze air quality in the TWA Suranadi and RTH of Udayana. The research method uses quadrant 10 x 10 m whic is placed by purposive sampling. The diversity index (H′) in TWA Suranadi is low category (H′=1.4) with 5 species founded. Species with a high abundance index were Andreae sp. (45.45%), Brachythecium rutabulum (18.18%) and Taxiphyllum sp. (18.18%), while Lejeunea laetevirens (9.09%) and Hypnum cupressiforme (9.09%) are low category. The index diversity in Udayana RTH is low category (H′=1.2) with 4 species founded. Species with a high abundance index were Octoblepharum albidum (44.44%), Dicranoweisia crispula (22.22%) and Lopholejeunea sp (22.22%), while Barbula sp (11.11%) was moderate category. The moss diversity index in TWA Suranadi is higher than in Udayana RTH. Air quality in both areas is still below the threshold. Air quality affects the diversity index. Periodic monitoring of air quality needs to determine the effectiveness of mosses in absorbing pollutants.
Penyisihan Kadar TDS, pH, Dan Total Coliform Dalam Pengolahan Air Hujan Menjadi Air Siap Minum: Allowance for TDS, pH, and Total Coliform Levels In The Treatment of Rainwater Into Ready-Drinking Water Sri Anzjarwati; Loureni Santa Basilia; Reya Adiarti Aradiyah; Rizki Purnaini
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 9 No. 3 (2023): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v9i3.324

Abstract

Rainwater is water that falls directly from the sky due to the evaporation process. Rainwater is commonly used as drinking water by the community. However, rainwater should not be consumed directly without prior processing. This is because rainwater is acidic and has low mineral content, and still contains bacteria that can cause disease. This study aims to design and determine the efficiency value of rainwater treatment equipment into ready-to-drink water with a combination of processing through filtration and electrolysis. The parameters that will be tested in this study are TDS, pH, and total coliform. After processing, it is known that the efficiency of the series of tools in this study in removing the total coliform content is 100% and the TDS is 73.81%. However, the pH value after processing has not met the quality standards
Pemanfaatan Limbah Dapur (Telur Ayam Kampung dan Micin) menjadi Pupuk Organik Cair (POC) untuk Tanaman Stroberi: Utilization of Kitchen Waste (Kampung and Micin Chicken Eggs) Into Liquid Organic Fertilizer (POC) for Strawberry Plants Yasmin Oktaviani; Annissa Mawardini
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 9 No. 3 (2023): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v9i3.347

Abstract

This study aims to determine the kitchen waste from chicken eggs and micin can be used as POC and POC can fertilize strawberry plants. The method used in this research is the experimental method. In addition, this research was carried out directly by direct observation and carried out in the Belitung area. This study also uses a literature study by reviewing several research results, articles, ebooks, and case studies that occur in the field. The results of this study are: 1) Kitchen waste from free-range chicken eggs and micin can be used as an environmentally friendly and cost-effective liquid organic fertilizer (POC), 2) The results of the application of photosynthetic POC to strawberry plants can fertilize plants and restore soil fertility.
Aplikasi Beads Komposit Chitosan – Clay Sebagai Adsorben dalam Penyerapan Ion Klorida (Cl-) Pada Air Payau: Application of Chitosan – Clay Composite Beads as Adsorbent to Removal of Cl- Ions in Brackish Syavina Ananda; Shinta Elystia; Dewi Fitria
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 9 No. 3 (2023): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v9i3.362

Abstract

Water resources found in coastal areas and islands in terms of water quality are still relatively low, so treatment is necessary. Chitosan and clay are adsorbents that can be applied in various techniques to overcome environmental pollution. Chitosan is a natural adsorbent that has a high adsorption capacity but has low mechanical stability and is easily dissolved in an acidic medium. Clay is an adsorbent with a large specific surface area and has high mechanical stability. This research uses chitosan – clay beads, which aim to increase mechanical stability environmental resistance, and efficiency in brackish water treatment. It is located in Bandar Sungai Village, Sabak Auh District, Siak Regency. The research was conducted by varying the concentration of chitosan–clay beads (1:0), (1:0,25), (1:0,5), and (1:0,75) (w/w) to decrease the chloride ion (Cl-) in brackish water. The characterization of chitosan-clay beads with the water absorption test obtained the best results at the concentration variation (1:0), which was equal to 694,079%. The mechanical strength test obtained the best results at the concentration variation (1:0,75), which was 6,23 kgf. The characterization of chitosan-clay beads using SEM showed that the beads had larger pores. The results obtained show the best chloride ion removal efficiency (Cl-) of 90,828% with a final concentration of 113 mg/L at a concentration of chitosan – clay beads of (1:0.5) with a sampling time of 30 minutes. The research results have met the quality standards set by the Government Regulation of the Republic of Indonesia Number 22 of 2021 concerning the Implementation of Environmental Protection and Management.

Page 18 of 34 | Total Record : 335

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