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Productivity evaluation of Eucalyptus urophylla plantation established in dryland ecosystems, East Nusa Tenggara Sadono, Ronggo; Wardhana, Wahyu; Wirabuana, Pandu Yudha Adi Putra; Idris, Fahmi
Journal of Degraded and Mining Lands Management Vol. 8 No. 1 (2020)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2020.081.2461

Abstract

The establishment of the Eucalyptus urophylla plantation has a potential contribution to the improvement of dryland ecosystem productivity in East Nusa Tenggara. However, the productivity of E. urophylla stand in this area is rarely documented even though it has been managed for more than 20 years. This study was directed to evaluate the growth performance, biomass accumulation, and carbon storage in E. urophylla plantation managed by Timor Tengah Selatan Forest Management Unit (FMU). Data were collected by a field survey using N-trees sampling method. Results demonstrated the mean tree density of E. urophylla in this area was 182 trees/ha with an average stand volume of 150.12 m3/ha. The mean annual increment in volume varied from 1.83 to 19.45 m3/year. The mean biomass accumulation and carbon storage in E. urophylla plantation approached 171.76 and 52.25 Mg/ha. Around 65% of total biomass and carbon storage were accumulated in the stem. Interestingly, the relative contribution of the stem to total biomass increased slowly with diameter class increasing while the dissimilar trend was observed in root, branch, and foliage. Based on the results, this study confirmed that the existence of E. urophylla plantation could increase the productivity of dryland ecosystem in East Nusa Tenggara.
Enhancing land cover and carbon storage through rehabilitation of degraded lands into Wono: a case study of a small-scale private forest in Dengok Village, Gunungkidul, Yogyakarta, Indonesia (1972-2021) Putri, Adhe Viana Yulida; Sadono, Ronggo; Sutata, Daris Fahmaa
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.2024.112.5105

Abstract

The implementation of degraded land rehabilitation programs and community-based forest management certification is widely recognised to enhance the status of wono land cover and aid in climate change mitigation. The expansion of the restoration efforts can be monitored using satellite images to track the progress of operations by observing changes in land cover area. Community forest certification also can enhance the success of land restoration endeavours. Therefore, this study aimed to show the change in forest land cover and the amount of carbon stored from 1972 to 2021. Landsat imagery was used to depict land cover conditions in 1972, 1982, 1993, 2000, 2008, 2014, and 2021, before and after the implementation of restoration and community forest certification programs. The Normalized Difference Vegetation Index approach was employed for satellite images captured in 1972 and 1982, while the Forest Canopy Density method was employed for images in 1993, 2000, 2008, 2014, and 2021, to illustrate the progressive increase in wono land cover. Meanwhile, carbon storage was analysed from 1972 to 2021 using national carbon storage conversion. The results indicated that restoration activity and the establishment of community forest certification increased wono area and carbon storage, which totalled 55.90 ha and 5,499.04 t C between 1972 and 2021. Augmenting carbon storage within wono land cover constituted an effective strategy for mitigating climate change.
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.
Enhancing the estimation accuracy of above-ground carbon storage in Eucalyptus urophylla plantation on Timor Island, Indonesia, through higher spatial-resolution satellite imagery Sadono, Ronggo; Soraya, Emma
Journal of Degraded and Mining Lands Management Vol. 11 No. 3 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.113.5623

Abstract

Eucalyptus urophylla plantation is an important contributor to carbon storage in climate change mitigation, established due to a land rehabilitation program in the semi-arid ecosystem in Timor Island. To ensure an accurate estimate of the above-ground carbon storage of these plantations, it is important to continuously combine ground measurement with remote sensing technology. Therefore, this study aimed to compare the above-ground carbon storage estimation of two very high spatial resolution images, namely Pleiades-1B 2021 and Pléiades Neo 2022 with pixel sizes of 2 x 2 m and 1.2 x 1.2 m, respectively. The normalized difference vegetation index was employed to identify the eucalyptus trees and classify the density into low, moderate, and high. The results showed that Pléiades Neo imagery provided superior eucalyptus tree identification to Pleiades-1B imagery and was more accurate in estimating above-ground carbon storage. However, there is a trade-off between increasing this accuracy and incurring a higher cost to achieve the highest spatial resolution image. 
Assessment of critical land cover rehabilitation in South Sulawesi, Indonesia Mursyid, Harsanto; Liana; Panambe, Novita; Sadono, Ronggo; Emma Soraya
Journal of Degraded and Mining Lands Management Vol. 12 No. 2 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.122.6965

Abstract

The wide areas of critical land in Indonesia are attracting a high level of attention due to the significant influence of global warming. Addressing this issue requires several priority efforts, such as critical land rehabilitation programs. The level of critical land rehabilitation can be evaluated with remote sensing technology. Therefore, this research aimed to assess critical land in South Sulawesi rehabilitated by PT Vale Indonesia Tbk (PT VI) as compensation for mining nickel from the forest areas. The assessment was conducted in three villages across Luwu, namely Binturu, Lamasi, and Rante Alang. Successful critical land rehabilitation was determined by monitoring land cover changes (LCC) based on satellite data generated using Harmonized Sentinel-2 from 2019 to 2023. Furthermore, analysis was performed using the Google Earth Engine (GEE) platform with the Random Forest machine learning algorithm and correlation matrix. The result showed five LC classes, including high-density, low-density, shrubs, bare land, and buildings. Before rehabilitation in 2019-2020, non-forested LC in the three villages was only at a proportion of 23.41%, while forested LC reached 58.92% and increased to 80-95% in 2021-2023. Critical land rehabilitation in Luwu was considered a success due to increased LC at high- and low-density classes, along with declines in bareland and buildings. Additionally, an inverse correlation was detected between high- and low-density LC classes and buildings, barelands, and shrubs. Elevation in high- and low-density LC could significantly contribute to mitigating climate change.
Historical Analysis of Mangrove Ecosystems Changes in Tidal Disasters-Prone Areas Using Remote Sensing Putri, Adhe Viana Yulida; Sadono, Ronggo; Poedjirahajoe, Erny
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 15 No 4 (2025): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.15.4.580

Abstract

Mangrove ecosystems are vital for human livelihoods, but ongoing exploitation and natural disturbances have led to significant land use and cover changes. Therefore, this study aimed to identify trends regarding land cover (LC) changes in mangrove ecosystems using remote sensing. LC changes from 1988 to 2024, as observed using remote sensing techniques. Satellite imagery from Landsat 5 TM, Landsat 7 ETM+, Landsat 8 OLI/TRIS, and Landsat 9 OLI/TRIS was analyzed using the Normalized Difference Vegetation Index (NDVI), Normalized Difference Water Index (NDWI), and a newly developed Combined Mangrove Recognition Index (CMRI). The results revealed four distinct phases of LC change over the study period (1988–2024), starting from 1988 to 1989, during which 12.14 ha of mangrove forest were documented. The second phase, spanning from 1990 to 1994, witnessed the onset of anthropogenic disturbances in pond area expansion, totaling 41.04 ha. The third phase, which spanned from 1995 to 1998, featured abrasion, resulting in 11.56 ha reduction in the area covered. Natural ecosystem recovery began in 1998 and continued with human intervention in the fourth phase from 2008 to 2024, resulting in an increase in mangrove forest LC by 62.57 ha. The study demonstrates the utility of remote sensing in documenting ecological changes over time and provides critical insights for sustainable coastal management and policymaking in vulnerable urban coastal zones.
Karakteristik Biofisik Ruang Terbuka Hijau Pada Hutan Kota Samarinda, Provinsi Kalimantan Timur Endayani, Sri; Sadono, Ronggo; Kusumandari, Ambar; Hartono, Hartono
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 9 No 4 (2019): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.9.4.977-985

Abstract

Population growth and economic activity always require space. Physical, social and economic composition always changes due to spatial land use. Changes in spatial land use that do not take into account the biophysical balance will result in natural disasters. Urban problems in the use of space result in the disturbance of the harmony between human and the nature. The economy is improving, but the nature is suffering from damages. Green open space is the right solution. This research’s objective is to determine the biophysical characteristics (soil characteristics, stand potential, slope and rainfall) of the urban forests in Samarinda. The results show the class of clay texture, acid soil pH, low organic matter and gray brown color. The urban forests in Samarinda are dominated by species of Jati (Tectona grandis), Jati Putih (Mangifera indica), Mahoni (Swietenia macrophylla), Jambu (Anacardium occidentale), Jambu Batu (Psidium guajava), Kayu Jawa (Lannea grandis), Gmelina arborea, Angsana (Pittocarpus indicus), Bitti (Vitex cofassus), Trembesi (Samania samania), Morinda citrifolia and Kapuk (Ceiba Pentandra), hilly slopes, rather steep altitude range of 16-65 mdpl and an average rainfall of 1 095.9 mm/year.
THE INFLUENCE OF STAND DENSITY AND SPECIES DIVERSITY INTO TIMBER PRODUCTION AND CARBON STOCK IN COMMUNITY FOREST Yudha Adi Putra Wirabuana, Pandu; Setiahadi, Rahmanta; Sadono, Ronggo; Lukito, Martin; Setyo Martono, Djoko
Indonesian Journal of Forestry Research Vol. 8 No. 1 (2021): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2021.8.1.13-22

Abstract

Stand density and species diversity are two indicators that are highly related to forest productivity. However, the effect of those variables on the productivity of community forest is rarely documented. This study evaluates the influence of stand density and species diversity on timber production and carbon stock in the community forest. The study area was located in Madiun District. A field survey was conducted in four different community forest sites, i.e. Morang, Kuwiran, Randualas, and Kare. The sampling technique was by quadrat method using a sample plot size of 25 m x 25 m. The number of sample plots used in this study was 64 units, which were evenly distributed in every site. Comparison of stand attributes among sites was examined by Kruskal-Wallis test and followed by Kruskal-Nemenyi test on the effects of stand density and species diversity on timber production and carbon stock were assessed separately for each parameter using the generalized least square regression test. The process of statistical analysis was applied using a significance level of 5%. Results show a significant difference in stand volume, aboveground biomass, and carbon stock among sites (P<0.05). This study also recorded a meaningful effect of stand density and species diversity on timber production and carbon stock of community forest, wherein stand density provided a higher effect (R2 = 0.68; P<0.05) than species diversity (R2 = 0.26; P<0.05).
Recovery of Residual Forest Ecosystem as an Impact of Selective Logging in South Papua: An Ecological Approach Murdjoko, Agustinus; Marsono, Djoko; Sadono, Ronggo; Hadisusanto, Suwarno
BIOTROPIA Vol. 24 No. 3 (2017): BIOTROPIA Vol. 24 No. 3 December 2017
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (9025.441 KB) | DOI: 10.11598/btb.2017.24.3.732

Abstract

Papua has been experiencing heavy logging activity in its forests for decades . However, only several studies focused on the effect of logging in the forest ecosystem. This research was aimed to analyze recovery processes of the forest ecosystem. The research was conducted in the logged tropical rainforest in South Papua using ecological approach which used tree communities as biotic and soil condition as abiotic indicators. Data were collected in the logging area of PT Tunas Timber Lestari located in the tropical rainforest of South Papua. There were five groups of forests used in this research i.e. unlogged, one year post selectively-logged, five years post selectively-logged, ten years post selectively-logged and fifteen years post selectively-logged forests. Thirty nested plots were laid on each forest group. Canonical Correspondence Analysis (CCA) was applied to analyze the understory and upperstory plant communities. Understory and upperstory plant communities formed different patterns due to logging. Plant communities in the ten and fifteen years post-selectively logged forests were not similar to those in the unlogged forest. Soil organic matter (SOM) content in the selectively logged forests was lower than that in the unlogged forest. These occurrences indicated that the selectively logged forests were still recovering and required more than fifteen years to be fully recovered.
Co-Authors Agustinus Murdjoko Agustinus Murdjoko Ai Yuniarsih, Ai Ambar Kusumandari Andyono, Gebyar Ari Susanti Arifah Hidayati Aris Jatmiko Askar Askar Aswandi Aswandi Aswandi Aswandi, Aswandi Aziz Umroni Bekti Larasati Dewanto Dewanto Djoko Marsono Djoko Marsono Djoko Marsono Djoko Marsono Djoko Marsono Djoko Marsono Djoko Marsono Djoko Marsono Djoko Marsono Djoko Marsono M Djoko Setyo Martono Djoko Soeprijadi Djoko Soeprijadi Djoko Soeprijadi Eko Pujiono Emma Soraya Emma Soraya Emma Soraya, Emma Erny Poedjirahajoe Fahmi Idris Fahmi Idris Fahmi Idris Fahmi Idris Fahmi Idris Fahmi Idris Gebyar Andyono Gerson N Njurumana Gerson N. Njurumana, Gerson N. Harsanto Mursyid Hartono Hartono Hartono Hartono Hartono Hartono Hartono Hartono Hartono Haryono Supriyo Haryono Supriyo Herawikan Mandiriati Herawikan Mandiriati Hermawan, Much. Taufik Tri Hero Marhaento, Hero Heru Budi Santoso Idris, Fahmi Imran, M. Ali Indriani Ekasari Irham I I Irham, Irham Jany T. Raharjo Joko Ridho Witono Khan, Kamran Liana Lies Rahayu Wijayanti Faida M Ali Imron Mamoru Kanzaki Martin Lukito Meifrida Lasmaria Silalahi Mochammad Maksum Machfoedz Mochammad Maksum Machfoedz, Mochammad Maksum Muhammad Ali Imron Muhammad Dimas Trisnomo Novita Panambe Nunuk Supriyatno Nunuk Supriyatno Panambe, Novita Pandu Yudha Adi Putra Wirabuana Pandu Yudha Adi Putra Wirabuana Pandu Yudha Adi Putra Wirabuana Priyono Suryanto Priyono Suryanto Putri, Adhe Viana Yulida Rahmadwiati, Rissa Rahmat Hidayat Rahmat Hidayat Relawan Kuswandi Relawan Kuswandi Ris Hadi Purwanto Ryke Nandini Ryke Nandini Ryke Nandini S Sanudin Sahid Susanto San Afri Awang San Afri Awang San Afri Awang San Afri Awang Sanudin Sanudin Sanudin Sanudin Satyawan Pudyatmoko Sergian Juniarso Setiahadi, Rahmanta Setiaji Setiaji Setiaji, Setiaji Setyo Martono, Djoko Siarudin Mohamad Soewarno Hasanbahri Soewarno Hasanbahri Sri Endayani Sri Endayani, Sri Suryo Hardiwinoto Suryo Hardiwinoto Sutata, Daris Fahmaa SUWARNO HADISUSANTO Taufan Alam Totok Gunawan Totok Gunawan Totok Gunawan Wahyu Wardhana Wahyu Wardhana Wahyu Wardhana Wahyu Wardhana Wahyu Wardhana Wahyu Wilopo Wardhana Wahyu Wirabuana, Pandu Yudha Adi Putra Yudha Adi Putra Wirabuana, Pandu