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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Indonesian Journal of Geography Journal of Degraded and Mining Lands Management JURNAL HUTAN TROPIS
Hermawan, Much. Taufik Tri
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences

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Development of Land Cover and Carbon Storage in Plawangan Hill of Gunung Merapi National Park, Yogyakarta, Using Landsat Data Series 2009, 2013, 2017, and 2023 Khan, Kamran; Sadono, Ronggo; Wilopo, Wahyu; Hermawan, Much. Taufik Tri
Jurnal Manajemen Hutan Tropika Vol. 30 No. 1 (2024)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.7226/jtfm.30.1.107

Abstract

Globally, habitat loss, deforestation, and climate change are mostly caused by land cover changes (LCC). The amount of land covered by trees has had a major impact on global warming and climate change. Increasing the amount of land cover helps to mitigate climate change and global warming. This study aims to investigate the changes in land cover and carbon storage in Plawangan Hill, Indonesia, over four years (2009, 2013, 2017, and 2023). The study site was defined as a conservation area that has been periodically impacted both directly and indirectly by volcanic eruptions. Images from Landsat 7 and 8 were used to collect data. Additionally, land cover changes were assessed using the forest canopy density (FCD Mapper) model, which was then utilized to quantify the carbon storage of the research site. The findings demonstrated fluctuations in land cover changes between 2009 and 2023. Additionally, changes in land cover have a direct impact on changes in carbon storage. The age of the trees, type of vegetation, succession stage, and history of eruptions were the variables that were apparent to be the main causes of these changes.
The characteristic of impacted soil by the Merapi Eruption in Plawangan Hill of Taman Nasional Gunung Merapi, Yogyakarta, Indonesia Khan, Kamran; Wilopo, Wahyu; Sadono, Ronggo; Hermawan, Much. Taufik Tri
Journal of Degraded and Mining Lands Management Vol. 11 No. 2 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.112.5361

Abstract

Mount Merapi National Park (TNGM) is one of the active volcanos in Indonesia. It has past volcano eruption history since 1911 up to date. Specifically, Plawangan Hill is a part of the TNGM recently designated as Geo-heritage and has experienced volcano eruption indirectly and directly. Additionally, since the Indonesian government designates Plawangan Hill as a Geological Heritage (Geo-Heritage) location, it is crucial to determine its geological features and how they relate to the development of the vegetation there as the study’s objectives. A field survey and a soil laboratory examination were conducted to obtain the data. As a result, Plawangan Hill’s DEM was classified from very low to very high classes, while the DSM was categorized from flat to very steep slopes. Further, the results demonstrated that the pH of the soil was typically somewhat acidic (5.93–6.54). While the soil’s nitrogen content was found to be low to medium, both phosphorus and potassium levels were typically very low. The carbon-nitrogen ratio was generally categorized into the medium, while the organic C ranged from low to medium (1.44% to 3.22%). The soil’s N total, K total, organic matter, carbon content, and C-N ratio increased by the erupted material age. Additionally, it was discovered that the vegetation growth was excellent in indirect (IA) and directly affected (DA) conditions, as indicated by their diameter at breast height (Dbh) and height (H). The correlation between soil characteristics and vegetation growth differed in indirectly affected (IA) and directly affected (DA) areas. As a result, the study found that volcanic materials significantly contributed to Plawangan Hill’s soil characteristics and vegetation growth. Furthermore, this study’s findings were highly beneficial because they were one of the primary explanations for why Plawangan Hill was designated a Geo-heritage site.
Changes in the ecological system of coastal areas of Bantul and Kulon Progo Regencies Wahyudi, Muhammad; Poedjirahajoe, Erny; Hermawan, Much. Taufik Tri; Djumanto, Djumanto
Indonesian Journal of Geography Vol 57, No 1 (2025): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.100952

Abstract

Coastal areas are classified as highly vulnerable because they are always tied to changes in the global aquatic environment. The ecosystem dynamics are increasingly complicated and complex as a result of interactions with other systems on land. This phenomenon is very visible in the coastal areas of Bantul Regency and Kulon Progo Regency. We use Sentinel-2 satellite image interpretation in the period 2013-2022 as a historical record of land use change, and then explore it with Niklas Luhmann's social system theory to understand how communities and government mean the ecological system represented by activities in coastal areas. The results showed that the community and the Government massively changed the original ecosystem of pes-caprae with the dominant afforestation of shrimp cypress. For the community, afforestation is assumed to support production agriculture, from subsistence agriculture. For the government, afforestation is a misconception about reforestation and protecting vital infrastructure such as Yogyakarta International Airport. The main capital for change is technology and its knowledge, and economic capital obtained from production. The economic capital obtained is used for social transformation, including eliminating the stigma of poor, uninformed, and inferior coastal communities. The results achieved change the meaning of land from previously only to support daily livelihoods to production factors that have very high economic and social value. Any attempt to change the establishment of the social and economic system will be met with strong resistance from the community. Under these conditions, the sustainability discourse that we are developing is to build an institutionalized knowledge system, which is carried out repeatedly and continuously, which is important for the community to understand because its dynamics will continue to develop in the future.Received: 2024-10-23 Revised: 2025-02-07 Accepted: 22025-04-16 Published: 2025-04-30
POLA PEMANFAATAN SUMBER DAYA HUTAN OLEH MASYARAKAT DESA NGABLAK DI KAWASAN TAMAN NASIONAL GUNUNG MERAPI Gare, Kletus Florianus Sera; Rusadi, Nusrah; Dako, Fransiskus Xaverius; Selanno, Frenly Marvi; Lamanda, Sukriati Andesti; Faida, Lies Rahayu Wijayanti; Hermawan, Much. Taufik Tri
Jurnal Hutan Tropis Vol 14, No 1 (2026): Jurnal Hutan Tropis Volume 14 Nomer 1 Edisi Maret 2026
Publisher : Lambung Mangkurat University-Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jht.v14i1.25713

Abstract

Penelitian ini bertujuan untuk menganalisis pola pemanfaatan sumber daya hutan oleh masyarakat Desa Ngablak di kawasan Taman Nasional Gunung Merapi (TNGM). Penelitian sebelumnya umumnya berfokus pada aspek kebijakan, kelembagaan, dan ekologi, sementara kajian mengenai pola pemanfaatan sumber daya hutan pada tingkat lokal di kawasan konservasi masih terbatas. Penelitian ini bertujuan mengisi kesenjangan tersebut melalui analisis empiris interaksi masyarakat dengan sumber daya hutan. Penelitian menggunakan metode deskriptif dengan pendekatan kualitatif dan kuantitatif. Penelitian dilaksanakan pada bulan Oktober hingga Desember 2025 di Desa Ngablak, Jawa Tengah. Data primer diperoleh melalui observasi, wawancara semi terstruktur terhadap 64 petani, dan dokumentasi, sedangkan data sekunder diperoleh dari berbagai sumber relevan. Hasil penelitian menunjukkan bahwa pemanfaatan sumber daya hutan meliputi tiga aktivitas utama, yaitu penggarapan lahan, pengambilan kayu bakar, dan pemanfaatan hijauan pakan ternak. Penggarapan lahan dilakukan melalui sistem agroforestri sederhana yang mengombinasikan tanaman tahunan dan semusim. Kayu bakar dimanfaatkan sebagai sumber energi rumah tangga, sedangkan vegetasi bawah dimanfaatkan sebagai pakan ternak. Penelitian ini menunjukkan adanya struktur pemanfaatan yang bersifat hierarkis, di mana kawasan hutan berfungsi sebagai basis produksi ekonomi masyarakat. Temuan ini menegaskan bahwa TNGM tidak hanya berfungsi sebagai kawasan konservasi, tetapi juga mendukung sistem penghidupan masyarakat secara adaptif.
Hydrogeomorphic controls on soil C:N:P stoichiometry and mangrove vertical growth: Implications for site selection and monitoring Wardhani, Frita Kusuma; Poedjirahajoe, Erny; Kamal, Muhammad; Hermawan, Much. Taufik Tri
Journal of Degraded and Mining Lands Management Vol. 13 No. 3 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.133.10399

Abstract

Hydrogeomorphic gradients shape habitat heterogeneity in coastal ecosystems, yet rehabilitation in degraded coastal landscapes often neglects geomorphic suitability, resulting in suboptimal soil recovery and vegetation development. This study evaluated how hydrogeomorphic settings regulated soil physicochemical properties, carbon (C), nitrogen (N), phosphorus (P) stoichiometry, and vertical growth in a rehabilitated mangrove forest on the north coast of Java, Indonesia. Physicochemical variables, soil nutrient concentrations, and vegetation structural metrics were collected at seven stations and analyzed using the Kruskal-Wallis test with effect size estimation and hierarchical linear mixed-effects models. Significant spatial differences in stoichiometric ratios, particularly C:P and N:P (?² = 0.77). Total nitrogen explained approximately 13% of the variance in the C:P ratio, while soil organic carbon significantly influenced the N:P ratio. The N:P ratio significantly influenced tree height (explaining 22% of the variation), whereas diameter at breast height was not significantly correlated. This study found that hydrogeomorphic factors played a dominant role in these patterns, with a conditional coefficient of determination of 0.75. These findings confirm that geomorphic suitability and nutrient stoichiometry should be considered in mangrove rehabilitation planning and monitoring to enhance their effectiveness in degraded coastal areas.
Co-Authors Djumanto Djumanto Erny Poedjirahajoe Fransiskus Xaverius Dako, Fransiskus Xaverius Gare, Kletus Florianus Sera Khan, Kamran Lamanda, Sukriati Andesti Lies Rahayu Wijayanti Faida Muhammad Kamal Muhammad Wahyudi Ronggo Sadono Rusadi, Nusrah Selanno, Frenly M. Wahyu Wilopo Wardhani, Frita Kusuma