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Program Pascasarjana Universitas Lambung Mangkurat Gedung Pascasarjana Kampus ULM Banjarmasin Jl. Brigjen H. Hasan Basri, Kayu Tangi, Banjarmasin
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Tropical Wetland Journal
Published by Universitas Lambung Mangkurat
ISSN : 23387653     EISSN : 2654279X     DOI : -
Core Subject : Health, Education, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Education Medicine & Pharmacology Other
The journal will accept any manuscripts related to tropical wetland issues. The articles in this journal may from dissertations, theses, research reports, scientific papers and articles reviews. This journal is published in every 2 (twice) in a year (July and December).
Arjuna Subject : Umum - Umum
Articles 175 Documents
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Death Voyage Tradition: Spiritual and Social Values in the Sasak Community's Practices in Sintung Village, Central Lombok, West Nusa Tenggara: Spiritual and Social Values in the Sasak Community's Practices in Sintung Village, Central Lombok, West Nusa Tenggara Jamiluddin, Jamiluddin; Emilia Fatriani; Lalu Hadi Subandi
TROPICAL WETLAND JOURNAL Vol 11 No 2 (2025): Tropical Wetland Journal
Publisher : Postgraduate Program - Lambung Mangkurat University (ULM Press Academic)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/twj.v11i2.139

Abstract

This study examines the spiritual values embedded in the death voyage rituals practiced by the Sasak community in Desa Sintung, Pringgarata Sub-district, Central Lombok. Rooted deeply in Sasak traditions, these rituals are seen as a means to pray for the deceased's peaceful journey to the afterlife and as social gatherings that strengthen communal bonds within the community. Using a qualitative research method with a descriptive approach, data were collected through in-depth interviews, observations, and documentation. The collected data were analyzed using the data analysis techniques of Miles and Huberman. The findings reveal that the death voyage rituals are conducted on the eighth day after death and continue weekly on the same day until the fortieth day. The rituals encompass various spiritual values, including religious, moral, empirical, and aesthetic elements. These practices remain ongoing and are viewed positively by the community. This study highlights the continuity of these rituals, reflecting the Sasak community's dedication to preserving and practicing their unique cultural identity.
The Periodic Carbon Stock Calculation and Monitoring of Flora and Fauna of the Watershed Rehabilitation Area of PT Asmin Bara Bronang: The Periodic Carbon Stock Calculation and Monitoring of Flora and Fauna of the Watershed Rehabilitation Area of PT Asmin Bara Bronang Soebagiyo, Siti Maimunah; Sushardi; Galang Indra Jaya; Suwito Setyo Budi; Hasan Mudzakir; JH Samek
TROPICAL WETLAND JOURNAL Vol 11 No 2 (2025): Tropical Wetland Journal
Publisher : Postgraduate Program - Lambung Mangkurat University (ULM Press Academic)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/twj.v11i2.145

Abstract

Watershed rehabilitation is an important effort in restoring natural conditions, especially along river flows for conservation efforts. Observations are still being made on permanent plots observed from 2020 for 250ha with 51 permanent plots were made spread evenly with a plot size of 20x20meters. The sampling intensity taken for this periodic observation was 0.816% using a carbon and biodiversity calculator from Michigan State University 2018. The results of the 2024 monitoring show that there is an increase in the amount of carbon by 21,069tons of carbon in all permanent plots in the area and an increase in the total carbon dioxide equivalent in the area of 77.26tons of carbon increased from 2020 and on each hectare of the area there is an increase in the amount of carbon over a period of one year. The increase trees species in the area is known to have 15 species, with the Menhinnick index 0.5; Margalef's index 2.; Shannon diversity indices 1.48; Simpson diversity indices 0.71; The frequency appears of species 0.55. The types of wildlife found of direct encounters, nests, footprints, feces, voices and feathers, were directly found orangutan, deers, birds, bears, and wildboars.
A Electronic Corruption (E-Corruption) in Digital Public Services: Criminal Law Challenges in the Era of Technological Transformation Syafa`i, Imam; Muhammad Aini
TROPICAL WETLAND JOURNAL Vol 11 No 2 (2025): Tropical Wetland Journal
Publisher : Postgraduate Program - Lambung Mangkurat University (ULM Press Academic)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/twj.v11i2.147

Abstract

The development of digital technology in public services presents great opportunities to increase transparency and accountability but also raises new challenges in the form of increasingly complex electronic corruption (e-corruption). The urgency of this study lies in the need for a deep understanding of the criminal law challenges that arise due to the digitalization of public administration, especially in the context of developing countries. This study aims to analyze the impact of digitalization on the level of corruption in the public service sector and assess the effectiveness of existing legal mechanisms in overcoming e-corruption. The method used is mixed methods with a sequential explanatory approach, involving qualitative analysis through in-depth interviews and literature studies, as well as quantitative surveys of civil servants and users of digital public services. The study results show that digitalization has succeeded in increasing transparency and reducing traditional corruption, but has also given rise to new forms of e-corruption such as data manipulation and misuse of digital identities. The main challenges identified include regulatory gaps, system vulnerabilities, and low digital literacy among the public. These findings emphasize the need for regulatory updates, strengthening digital security systems, and increasing digital literacy to support eradicating corruption in the digital era. This research makes an important contribution to the development of public policies that are adaptive to technological transformation and recommends further research with a broader scope to test the effectiveness of e-corruption prevention strategies.
THE Terrestrial Mammal Species Diversity in The Lamandau Wildlife Reserve Central Kalimantan Province Fauzi, Fouad; Erawati; Mohamad Rizal; Nisfiatul Hidayat; Milad Madiyawati
TROPICAL WETLAND JOURNAL Vol 11 No 2 (2025): Tropical Wetland Journal
Publisher : Postgraduate Program - Lambung Mangkurat University (ULM Press Academic)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/twj.v11i2.148

Abstract

The aim of this research is to inventory the diversity of land mammal species in the Lamandau Wildlife Reserve, Central Kalimantan Province. The method used is direct and indirect observation using strip transects and camera traps. The research results obtained ten types of mammals at three different observation sites, namely Gemini camp, JL camp and Rasak camp. The calculation results show that the richness index (R) and diversity index (H') of each camp are relatively low, while the evenness index (E) of each camp is relatively high.
Mapping of Density and Differentiation of Mangrove Species in the Tanjung Pemancingan Area, Kotabaru Syahdan, Muhammad; Melkyanus; Asyari, Mufida; Sofarini, Dini
TROPICAL WETLAND JOURNAL Vol 11 No 2 (2025): Tropical Wetland Journal
Publisher : Postgraduate Program - Lambung Mangkurat University (ULM Press Academic)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/twj.v11i2.172

Abstract

This study aims to identify mangrove species and map the density of mangrove vegetation in the Tanjung Pemancingan area, Kotabaru, using an object-based classification method (OBIA) applied to Sentinel‑2 imagery and Unmanned Aerial Vehicle (UAV) data. Mangroves play a crucial role in protecting coastlines from erosion and serving as habitats for various species, making an in‑depth understanding of mangrove distribution and types essential for coastal conservation and environmental management. The OBIA method allows for more accurate mapping by considering texture, shape, and more complex spatial patterns compared to traditional pixel‑based methods. In this study, OBIA is combined with the Support Vector Machine (SVM) algorithm and an optimized multiscale segmentation scheme to improve mangrove species discrimination, and the resulting products are linked with NDVI‑based canopy density classes for management‑oriented analysis. The analysis utilizes Sentinel‑2 Level‑2A satellite imagery with a spatial resolution of 10 × 10 meters (bands 8, 4, 3, and 2) and very high‑resolution UAV data (≈ 4.0 cm/pixel) generated from flights at 150 m altitude. The NDVI values for mangroves in the study area range from −0.30 to 0.686 and are classified into three canopy density classes using the equal interval method: sparse (−0.30 to 0.026), moderate (0.027 to 0.356), and dense (0.357 to 0.686). The OBIA method combined with the SVM algorithm successfully discriminates seven mangrove species with an overall accuracy (OA) of 72.46%, which exceeds the minimum 70% accuracy standard for mangrove land cover and canopy density interpretation set by the Geospatial Information Agency (BIG). The identified mangrove species include Avicennia alba, Avicennia marina, Avicennia officinalis, Avicennia rumphiana, Bruguiera gymnorhiza, Rhizophora apiculata, and Sonneratia alba, with A. rumphiana being the most dominant species, covering an area of 13.87 hectares, while A. officinalis occupies only 0.6 hectares. The mangrove vegetation density and species composition are successfully mapped and integrated, providing valuable information that can be used in conservation planning, coastal resource management, disaster mitigation, and ecotourism development in the area. Furthermore, these results highlight the potential of combining Sentinel‑2, UAV, OBIA, and SVM as an operational framework for mangrove ecosystem monitoring in coastal industrial settings

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