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Estimation of Carbon Stocks in Green Open Spaces (RTH) in East Pagutan, Mataram City Nufus, Husniatun; Markum, Markum; Ningsih, Rima Vera
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i2.9053

Abstract

The impact of global warming has made climate change a major area of ​​concern in the modern era. This phenomenon is caused by the increasing concentration of gases known as greenhouse gases (GHGs), which include carbon dioxide (CO2), methane (CH4), and nitrous oxide (N₂O). These gases increase the amount of heat trapped in the Earth's atmosphere, some of which is absorbed and some of which is reflected back to Earth. Analyzing the capacity of Pagutan Timur Green Open Space for carbon storage and carbon dioxide absorption in Mataram City is the aim of this study. Purposive and census methodologies were used in this study, which was conducted in Pagutan Timur Green Open Space, Mataram City. Qualitative and quantitative data analysis were used. The results of the study found that a total of 299.99 tons of carbon were stored, 638.27 tons of biomass were stored, and 1,100.95 tons of carbon were absorbed. This means that the total area is 8.2 hectares, or 36.49 tons of carbon stored per hectare. The conclusion is that Pagutan Timur Green Open Space can store carbon and absorb carbon dioxide in Mataram City.
Agroforestry Practices and Community Resilience to The Impact of Climate Change in Sesaot Forest Area, Lombok, Indonesia Markum Markum; Taslim Sjah; Muhamad Husni Idris; Irwan Mahakam Lesmono Aji; Muhamad Yul Fikry; Firman Ali Rahman
Jurnal Penelitian Pendidikan IPA Vol 11 No 5 (2025): May
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i5.11258

Abstract

Climate change affects agroforestry production and community resilience in forest areas. This study aims to: (1) identify vulnerabilities of forest products to climate change; (2) analyze community adaptation strategies; and (3) assess resilience levels of forest-adjacent communities. The research applied descriptive methods via field observations, interviews, and focus group discussions. From 74 residents, random sampling was used (Slovin method, 10% margin of error). Variables included economic, psychological, and social-institutional aspects. Resilience was assessed using a scoring system integrating Reivich & Shatté’s theory and a Likert scale, categorized into five levels: very high to very low. Results show that key vulnerabilities in the Sesaot forest area include harvest failures of major crops (e.g., durian, mangosteen, avocado, rambutan, cacao, coffee), with losses reaching 60–80%. Communities adapted through stratified agroforestry systems and strengthening local institutions. Resilience levels were high overall—economically moderate, but socially and psychologically strong. The study recommends improving economic resilience by reducing crop failure risks, including through the establishment of plant health clinics
Analysis of The Level of Farmers Welfare in The Sekaroh Jaya Community Forest Sekaroh Village Jerowaru District East Lombok Regency Zarkasyi, Akhmad; Markum, Markum; Wulandari, Febriana Tri
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): Juli-September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i3.9663

Abstract

The management of community forests plays a critical role in enhancing rural livelihoods. This study aims to analyze the income and welfare levels of farmers managing the Sekaroh Jaya Community Forest in Jerowaru District, East Lombok. A descriptive research approach was employed using both primary and secondary data collected through interviews and surveys of 65 randomly selected farmers. Data analysis included calculating net income, total costs, revenues, and comparing welfare status to World Bank poverty thresholds. The findings show that farmers earned an average net income of IDR 13,197,188/LLG/year from forest cultivation, with additional income from side jobs (IDR 1,535,000/year) and working family members (IDR 5,732,653/year), resulting in an average household income of IDR 20,464,841/year. While individual farmer welfare remains low, household-level welfare is categorized as high. These results indicate that household-level contributions significantly uplift overall farmer welfare. The study concludes that improving welfare strategies should not solely target individual income increases but also support household economic activities. These findings contribute to forest policy development and rural livelihood improvement strategies under community-based forest management programs.
SOSIALISASI PENGELOLAAN LIMBAH RUMAH TANGGA DALAM MENCEGAH PENCEMARAN LINGKUNGAN DAN GLOBAL WARMING DI SMA NEGERI 1 NARMADA, KABUPATEN LOMBOK BARAT Susilowati, Lolita Endang; Markum, Markum; Wahyuningsih, Endah; Jaya, Dori Kusuma; Gigentika, Soraya
Jurnal Abdi Insani Vol 12 No 1 (2025): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v12i1.2194

Abstract

Improper household waste management can cause environmental pollution and contribute to global warming. Therefore, there is a need for community service activities to provide education on household waste management to the students of SMA Negeri 1 Narmada. The goal of this community service activity is to increase the understanding and awareness of SMA Negeri 1 Narmada students regarding the importance of practical steps in household waste management to prevent environmental pollution and mitigate the impacts of global warming. This activity is carried out through outreach using expository methods, participatory methods, and formative evaluation, where students are introduced to the concepts of 3R (reduce, reuse, recycle) and the zero waste movement. The results of the activity show an increase in students' knowledge of the types of household waste and their negative impacts, as well as a better understanding of how to manage waste effectively. This outreach also resulted in positive changes in students' habits, such as separating organic and inorganic waste, using recyclable products, and reducing the use of single-use plastics. The conclusion of this activity is that household waste management outreach has proven effective in raising environmental awareness and can serve as a starting point for creating sustainable behavioral change. It is recommended that similar activities be held regularly and accompanied by collaboration between schools, communities, and the government to strengthen waste management efforts and global warming mitigation in a broader and more integrated manner.
Karakteristik Sosial Ekonomi Petani HKm Sekaroh Jaya di Kabupaten Lombok Timur Juliana Saputri, Ardita; Markum, Markum; Tri Lestari, Andi
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 5 No. 4 (2024): November
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v5i4.448

Abstract

Abstrak: Mengetahui sosial ekonomi masyarakat merupakan salah satu langkah awal untuk mengembangkan kemampuan masyarakat dalam mengelola hutan dan meningkatkan potensi dalam kawasan Hutan Kemasyarakatan (HKm). Penelitian ini bertujuan untuk mengetahui karakteristik sosial, ekonomi, dan budaya petani HKm Sekaroh Jaya di Kabupaten Lombok Timur. Metode pada penelitian ini menggunakan metode deskriptif. Sampel responden dalam penelitian ini berjumlah 36 orang yang ditentukan menggunakan rumus slovin yang diambil secara acak atau system random sampling. Metode pengumpulan data dilakukan dengan beberapa cara yaitu observasi, wawancara, kuisioner, dan studi pustaka kemudian dianalisis dengan cara analisis deskriptif kualitatif dan kuantitatif. Hasil penelitian menunjukkan bahw karakteristik sosial ekonomi dan budaya petani HKm yaitu rata-rata bermata pencaharian pokok sebagai petani dengan tingkat pendidikan rendah dan memiliki kebiasaan menanam jagung. Mayoritas kesejahteraan petani HKm Sekaroh Jaya yaitu dalam kategori miskin ekstrem dengan pendapatan bergantung pada tanaman jagung. Kata Kunci: Hutan Kemasyarakatan, Hutan Lindung, Sosial Ekonomi
Evaluasi Kinerja Hutan Kemasyarakatan Merte Sari Desa Sengigi Kecamatan Batu Layar Kabupaten Lombok Barat Ghozul Fikri, Muhammad; Markum, Markum; Setiawan, Budhy
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 6 No. 1 (2025): Februari
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v6i1.468

Abstract

This research evaluates the management performance of the Merte Sari Community Forest (HKm) in Sengigi Village, Batu Layar District, West Lombok Regency, with a focus on social aspects and supporting and inhibiting factors. Referring to the HKm evaluation guidelines in Perdirjen P.9/PSKL/PKPS/KUM.1/10/2019, this research found that Merte Sari's HKm management performance was in the good category with a score of 286, reflecting increased community welfare, institutional strengthening, behavioral changes management, and contribution to forest management. Supporting factors include good planning, member participation, institutional training, and women's involvement. However, inhibiting factors include a lack of biophysical data and NTFP potential, as well as suboptimal coordination and enforcement of regulations. This research suggests the need for forest product processing training, regular institutional development, institutional strengthening with the help of related parties, and further research on the potential for environmental services to support the development of the Merte Sari HKm. Interviews Interviews are a method of data collection where there is a question and answer interaction between researchers and respondents in this research, the approach used is based on the research objectives
Levels of Land Cover Density on Carbon Reserves and Income in Dongo Baru Community Forest (HKm) Jayadi, Andi; Idris, Muhammad Husni; Markum, Markum
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.7524

Abstract

Community Forest (HKm) in Dongo Baru, Mount Rinjani forest area, in land management applies a mixed agroforestry pattern. The application of this pattern is the result of forest rehabilitation activities covering 138 ha in 2019. This HKm has a variety of different types of land management in one management area. This study aims to describe the condition of HKm using an environmental approach by estimating carbon stock data and economic value by looking at the value of arrive efficiency. The strategy utilized in this inquire about is graphic method by means of observation, Center Gather Discourse, and interviews, to 27 respondents / owners of land economic aspects by taking carbon stock data to 27 farmer-owned land. The environmental assessment to measure carbon stocks used a sample of 27 plots, measuring 50m x 20m for trees, 10m x 10m for poles, and 5m x 5m for saplings. The plots represent the density level of the forest area, i.e. dense, medium, not dense. Determination of forest density classification using Landsat-7 satellite image analysis in 2022. Based on the comes about within the ponder, it can be concluded that there are 3 density classifications that exist in the Dongo Baru HKm forest area, namely Meeting density, Moderately Meeting density and Not Meeting density. their respective incomes are meeting land density (Rp. 21,273,889), Moderately Meeting land density (Rp. 19,210,333) and Not Meeting land density (Rp. 22,431,556). Meeting land has carbon stock (256.86 tonnes/ha), Moderately Meeting land has carbon stock (95.34), and Not Meeting land has carbon stock (52.90 tonnes/ha). Land management with the density of Rapat land is considered to have fulfilled the principles of forest management from the economic and environmental aspects.
The Economic Value of Candlenut Utilization in the Batudulang Village Forest Area, Batu Lanteh Subdistrict, Sumbawa Regency, West Nusa Tenggara Apriara, Lisa; Markum, Markum; Setiawan, Budhy
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i4.7952

Abstract

This study aims to identify the various uses of non-timber forest products (NTFPs), specifically candlenuts, and to analyze the economic value of candlenuts utilized by the community of Batudulang Village, Batulanteh Subdistrict, Sumbawa Regency, West Nusa Tenggara. The study is expected to serve as a basis for consideration and evaluation for forest managers, enabling them to make informed decisions and establish appropriate policies to improve the management system of the area. This research employs a descriptive method using both qualitative and quantitative approaches. The respondents were determined using a census method, with a total of 23 respondents participating in the study. The results of the study show that the respondents, who are members of the Sumber Alam Business Group (KUB), utilize candlenuts in three forms: whole nuts, shelled nuts (oce), and candlenut oil. The analysis of the economic value of candlenuts utilized by the members of the Sumber Alam KUB reveals that the average annual income per person from whole candlenuts is IDR 19.979.501, from shelled nuts (oce) is IDR 38.250.000, and from candlenut oil is IDR 1,700,000.