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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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Mitigasi Longsor Dengan Penataan dan Peningkatan Kemampuan Kawasan Perbukitan Pada by Pass BIL-MANDALIKA Sebagai Infrastruktur Penunjang Kawasan Ekonomi Khusus (KEK) Mandalika Lombok : Landslide Mitigation by Structuring and Increasing the Capability of Hill Areas on By Pass BIL-MANDALIKA as Supporting Infrastructure for The KEK Mandalika, Lombo Fahrudin Fahrudin; Mahrup Mahrup; IGM Kusnarta; Padusung Padusung; I Nym Soemeinaboedhy
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.v9i2.378

Abstract

One of the tourist destinations in Lombok, West Nusa Tenggara is the Special Economic Zone Mandalika (KEK Mandalika), a coastal tourism area with various supporting infrastructures on an international scale covering an area of 1,035.67 hectares. The pace of development brings environmental impacts, especially the morphology of the land in the form of mountains and hills is exposed by the conversion of land functions from proteced forest to agricultural areas without the application of land conservation methods. Bypass BIL-KEK Mandalika as the main connecting road for this tourism area is 17.2 km long flanked by hills with a slope of >30o and almost all hilly areas have been converted into agricultural areas. In this area there is minimal standing vegetation accompanied by unstable physical conditions, making all hilly areas on the BIL-KEK Madalika bypass classified as a Very High Erosion Hazard Level which reaches > 560 tons/ha/year which triggers more potential hazards. big like landslides and floods. Various steps have been taken, such as: 1) Integration of porang (Amorphopallus) and standing vegetation (canopy) applied in hilly areas in the Bypass BIL-KEK Mandalika area; 2) Emphasizing and preventing the conversion of buffer zones; 3) Rehabilitation of the Bypass BIL-KEK Mandalika Hills Area.
Analisis Nilai Keindahan Wisata Bahari di Pantai Tlangoh Bangkalan Menggunakan Metode Scenic Beauty Estimation (SBE): Analysis of the Beauty Value of Marine Tourism at Tlangoh Beach, Bangkalan Using the Scenic Beauty Estimation (SBE) Method Adhia Reggita Chinta Priwati; Firman Farid Muhsoni
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.v9i3.383

Abstract

The potential for sightseeing in madura is one of the potential for enjoying its natural beauty. The tlangoh village beach Tours are in demand. The purpose of this study is to know the value of beauty on the tlangoh coast. The method of measuring beauty value with scenic beauty colonation (sbe), it is used to assess and analyze the quality of landscapes using the documentaries (location photos) with the presentation of the location (gili labak island). Studies show that 15 landscape photos compared to 4 positive ones and 11 negative ones. Shows there are 4 landscape locations on tlangoh beach better than comparison sites, and 11 landscaping better location Settings. The average score sbe -1.97, suggests that a control site is still better than the tlangoh coast. The lowest score is 82.34 on the 4th landscape photo and 2.11 on the 15th landscape photo. Locations with low value are mostly in natural conditions such as coral reefs, beaches, while the tlangoh beach tourist facilities fare better than comparison points. Improved environmental quality needs to be made to increase the value of beauty at tlangoh beach. 
Komparasi Metode Titrimetri Dengan Spektrofotometri UV-Vis pada Analisis Chemical Oxygen Demand (COD) Output IPAL Domestik Berdasarkan Linieritas, Akurasi dan Presisi: Comparison Of Titrimetric With UV-Vis Spectrophotometry Methods For The Analysis Of Chemical Oxygen Demand (COD) Output Domestic IPAL Based On Linierity, Accuracy and Precision Ida Lestari; Peni Pujiastuti; Yari Mukti Wibowo
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 9 No. 4 (2023): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v9i4.416

Abstract

The method of a test must be evaluated and tested to ensure that the method is capable of producing valid data. So that validation needs to be done as a quality control that provides assurance that the measurements and results obtained are reliable. This study aims to determine the value and comparison of the values of linearity, accuracy, and precision of the titrimetric and spectrophotometric methods in COD analysis. Determination of the COD value for the titrimetric method was carried out by redox titration using a solution of Ferro Ammonium Sulphate (FAS). While the spectrophotometric method was carried out using UV-Vis spectrophotometry at a wavelength of 420 nm. The research results obtained a linear regression value for the titrimetric method of 0.9989, while the spectrophotometric method was 0.9991, this indicates that the linear regression value of the spectrophotometric method is better than the titrimetric method. The results of the accuracy analysis for the titrimetric method obtained a value of 111.48%, while for the spectrophotometric method it was 103.11%, this shows that the accuracy value of the spectrophotometric method is better than the titrimetric method. The precision analysis results for the titrimetric method obtained a value of 1.77%, while for the spectrophotometric method it was 1.55%, this shows that the spectrophotometric method has a better precision value than the titrimetric method. Based on the comparison of the results of statistical validation using the T-test, there was no significant difference in data between the titrimetric method and the spectrophotometric method.
Karakteristik Sampah Makroplastik di Pantai Wisata Lamaru Kota Balikpapan: Characteristics of Macroplastic at Lamaru Tourism Beach Balikpapan City Ayla Nursari; Irwan Ramadhan Ritonga; Ristiana Eryati
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.v9i2.431

Abstract

Marine debris is one of the environmental problems in Indonesia's coastal and marine areas, especially macroplastics. One of the coastal areas with macroplastic problems is the tourist beach, which may adversely affect the coastal ecosystem, biota, and reduce the quality of the coastal environment. The purpose of this study was to identify the type and composition, calculate the total weight, and determine the difference in macroplastic density in two different periods. This study was conducted in March and August 2022 at Lamaru tourism beach, Balikpapan City, East Kalimantan. Transect lines and sampling at the research site were determined by following guidelines from the Ministry of Environment and Forestry of the Republic of Indonesia. Sampling was carried out in transect areas with a length of 100 metres parallel to the shoreline and following the width of the beach ridge. All data collected were analysed using Microsoft Office Excel and SPSS software. It was found that the types and composition of macroplastic at Lamaru tourism beach were 12 types such as bottle caps, spoons, food and beverage packaging, plastic bags, toys, cigarette butts, plastic basins, net bags, tarpaulins, rope, raffia, and other plastic materials with a total of 142 items. The total weight of macroplastic waste in period I was 5.6792 gr/m2 and in period II was 4.1874 gr/m2. There was no significant effect (p>0.05) between different periods on the amount, weight and density of microplastics at Lamaru Tourism Beach, Balikpapan City. The dominant source of macroplastic at Lamaru beach comes from human activities on land.    
Hubungan Erodibilitas Tanah Terhadap Erosi pada Lahan Bekas Penambangan Batubara: Relationship of Soil Erodibility to Erosion in Ex-Coal Mining Land Doli Jumat Rianto; Aji Marwadi
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.v9i2.433

Abstract

The reclamation area on ex-coal mining land is very vulnerable to erosion. Soil vulnerability comes from the physical properties of the soil, the ease with which it erodes, and the topographical conditions. Erosion occurs in open areas and little overgrown with vegetation. However, this condition is of course a fundamental consideration of the factors that influence erosion. This type of research is a descriptive quantitative research, obtained from the results of empirical calculations to determine the magnitude of erosion and the correlation between erodibility and erosion variables using Smart PLS 3, at a confidence level of 5%. The results showed that the average amount of erosion on each reclamation land was 23.61 tons/ha/year with a moderate Erosion Hazard Level (TBE), and the results of the correlation test showed that there was a significant relationship between erosion and the factors that affect soil erodibility. such as permeability, soil grain size, and soil organic matter content, while topographical conditions are not so significant on the amount of erosion on reclamation land, it is suspected that fine clay soil texture plays a role in reducing the erosion rate.
Kajian Sifat Fisik Tanah Ustifluvents Sekotong Terkait Kandungan Merkuri (Hg) Dalam Tanah: Assesment of Physical Properties of Ustifluvents Sekotong Releted to Mercury (Hg) Content in Soil Puji Hapsari Hurum; Zaenal Arifin; Padusung Padusung; Suwardji Suwardji
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.v9i3.436

Abstract

People's gold mining in Sekotong, also known as Unlicensed Gold Mining (PETI), causes environmental pollution problems because located at the surrounding community processes gold using the amlagamation technique with the help of mercury (Hg) in binding gold. Mercury waste discharged directly into the environment could have adversely affects public health and degrades soil and water quality. The presence of mercury in the soil is strongly influenced by soil characteristics, one of which is soil physical properties. The purpose of this study was to determine the relationship between the physical characteristic ustifluvents Entisol soil of Sekotong soil and mercury content at 0-20 cm soil depth. This research was conducted using descriptive method with survey technique. Soil sampling was conducted at 3 location points near the logs and tailling at a depth of 0 - 10 cm and 10-20 cm, each location point was replicated 3 times. The selection of soil sample points was based on contour differences that affect the proportion of mercury content at each soil depth. The results showed that the highest mercury content was at point 3 with an average value of 0.3089 ppm and there was a strong to very strong relationship between soil physical properties and Hg content.
Keanekaragaman Jenis dan Kerapatan Vegetasi Hutan Pantai di Selatan Pulau Sumbawa, Kecamatan Labangka, Kabupaten Sumbawa: Species Diversity and Density of Coastal Forest in the South of Sumbawa Island, Labangka Subdistrict, Sumbawa District Eni Hidayati; Dedi Syafikri; Muhammad Reza Ramdhani; Nandita Pasya Salsabila
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.v9i2.437

Abstract

in Labangka Village in the South of Sumbawa Island is very important considering that this village is directly facing the Indian Ocean. In addition, the development of aquaculture in this village also requires knowledge of the vegetation that makes up the coastal forest so that appropriate management and monitoring activities can be planned. This study aims to identify the types of vegetation in coastal forest ecosystem in Labangka Village at four stations, namely in locations where super-intensive aquaculture will be built. The method used is the analysis of Importance Value Index and Normalized Differentiation Vegetation Index. The results of the study were as follows: Station 1 (27 species, dominated by Pongamia pinnata with an IVI of 185.64% for the tree level and IVI of 114.58% for the seedling level), Station 2 (9 species, dominated by P. pinnata INP of 214.16 % for the tree level and Leucaena leucocephala IVI 96.49% for the seedling level), Station 3 (18 species dominated by the pes-caprae formation type and shrubs, namely S. taccada, P. tectorius, and Heliotropium foertherianum), Station 4 (19 species dominated by shrubs namely S. taccada, Pandanus tectorius, and H. foertherianum and shrubs (L. camara and C. bonduc).The NDVI at observation stations ranged from -0.091 (sparse) to 0.543 (dense).
Hubungan Body Condition Score dengan Service Per Conception pada Induk Sapi Bali di Dusun Tempos Desa Tempos Kecamatan Gerung Lombok Barat : The Relationship Between Body Condition Score and Service Per Conception in Bali Cow in Tempos Subvillage Tempos Village Gerung District Lombok Barat Ria Harmayani; Alimuddin Alimuddin; Fauzan Azima
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.v9i2.438

Abstract

The purpose of this study was to determine the relationship between Body Condition Score and Service Per Conception in Bali Cows in Tempos subvillage, Tempos Village, Gerung District, West Lombok Regency. The method used in this study is observational with a longitudinal study type. The sample used in this study was 30 Bali cattle. The observed variables are Body Condition Score (BCS) and Service Per Conception (SC). The results showed that the results of simple linear regression analysis obtained an F count of 28.615 with a significance of 0.000. the result of the correlation between Body Condition Score (BCS) and Service Per Conception (S/C) is -0.711 with a significant value of 0.000. R2 = -0.711. The coefficient of determination (KD) is 54.8%. It can be concluded that there is a relationship between Body Condition Score and Service Per Conception in Bali Cows in Tempos Hamlet, Tempos Village, Gerung District, West Lombok Regency with a contribution size of 54.8%.
Analisis Produksi Serasah Mangrove pada Hutan Mangrove Desa Kurau Timur, Kabupaten Bangka Tengah, Bangka Belitung: Analysis Production of Mangrove Litter in the Mangrove Forest of Kurau Timur Village, Central Bangka Regency, Bangka Belitung Randiansyah Randiansyah; Henri Henri; Arthur Muhammad Farhaby
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.v9i3.439

Abstract

Mangrove forests have many ecological functions such as retaining and trapping sediments, dampening waves, providing protection for fish and other biota, and assimilating nutrients. Most of the nutrients returned to the forest floor are in the form of litter. Litter has an important role for the soil and the microorganisms in it. This study aims to measure the productivity of mangrove litter in the mangrove forest of Kurau Timur Village, Central Bangka Regency, Bangka Belitung. The method used to measure litter production is litter storage using a 1m x 1m litter trap with litter collection every 7 days for 3 months. Environmental parameter data analysis was performed by PCA (Principal Component Analysis). The rate of litter production in the mangrove forest of East Kurau Village is with a dry weight of 2.72 gr/m2/day. The components that make up litter are grouped into 3 components, namely leaves (66%), stems (18%), and flowers/fruits (16%). The litter layer on the mangrove forest floor of Kurau Timur Village is with an average dry weight of 69.02 grams, a water content of 40.73%, and an estimated average biomass of 3.08 tons/ha.
Sebaran Bakteri Coliform Sebagai Indikator Pencemaran Biologis Di Beberapa Sumber AirKecamatan Hu’u, Kabupaten Dompu Paryono Paryono; Nurliah Nurliah; Ibadur Rahman; Mahardika Rizqi Himawan
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.v9i2.454

Abstract

Coliform bacteria are a group of bacteria that originate from human and animal feces in large numbers, so they are often used as indicators of food and water quality. This study aims to determine the condition of the aquatic environment based on biological indicators such as the abundance of coliform bacteria in river water and wells in Hu'u sub-district, Dompu district. Data on coliform bacteria and water quality were sourced from PT STM based on the survey results of PT Intertek and PT Sucofindo in several rivers and wells in 2021. The results of data analysis show that most rivers have coliform bacteria density values exceeding the quality standards set by the Ministry of Environment and Ministry of Health. This is probably because many residents and cattle still dispose of their feces in the river.

Page 19 of 34 | Total Record : 335

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