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All Journal Biodiversitas Journal of Biological Diversity
PANDU YUDHA ADI PUTRA WIRABUANA
Department of Forest Management, Faculty of Forestry, Universitas Gadjah Mada. Jl. Agro No. 1, Bulaksumur, Sleman 55281, Yogyakarta, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Species composition and growth performance of mangrove forest at the coast of Tanah Merah, East Nusa Tenggara Ronggo Sadono; DJOKO SOEPRIJADI; ARI SUSANTI; PANDU YUDHA ADI PUTRA WIRABUANA; Jeriels Matatula
Biodiversitas Journal of Biological Diversity Vol. 21 No. 12 (2020)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d211242

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The availability information about species composition and growth performance of mangrove forest are required to determine the best strategies for sustainable ecosystems management, particularly at the coastal area. This study aimed to quantify the number of species composition and growth performance of mangrove stand that established at the coast of Tanah Merah, East Nusa Tenggara. Forest inventory was conducted using nine permanent sampling plot which evenly distributed in every zonation of mangrove. Data were collected in each life stage of vegetation, namely seedling, sapling, pole, and tree. Several parameters were calculated to describe species composition, including important value index, richness, heterogeneity, and evenness. Four indicators were selected to assess the growth performance of mangrove stand in this location, i.e. mean diameter, average height, timber volume, and wood biomass. Results demonstrated the species composition of mangrove forest consisted of 9 different plants. The highest important value index of seedling was noted in A. marina (124.09) while the greatest important value index of sapling, pole, and tree were recorded in S. alba by approximately 86.57, 130.01, 118.58 respectively. This location had low level of richness (1.22) and heterogeneity (0.88) but having high level of evenness (0.99). The mean diameter and height of mangrove stand in this area was 15.2 cm and 8.3 m with an average timber volume and wood biomass around 90.7 m3 ha-1 and 65.1 Mg ha-1 respectively. Based on these findings, we suggested to conduct enrichment planting for improving plant biodiversity of mangrove forest at the coast of Tanah Merah.
The growth, aboveground biomass, crown development, and leaf characteristics of three Eucalyptus species at initial stage of planting in Jepara, Indonesia PANDU YUDHA ADI PUTRA WIRABUANA; Syamsu Alam; Jeriels Matatula; Moehar Marghiy Harahap; Yusanto Nugroho; Fahmi Idris; Alnus Meinata; Dewa Ayu Sekar
Biodiversitas Journal of Biological Diversity Vol. 22 No. 5 (2021)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d220550

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Abstract. Wirabuana PYAP, Alam S, Matatula J, Harahap MM, Nugroho Y, Idris F, Meinata A, Sekar DA. 2021. The growth, aboveground biomass, crown development, and leaf characteristics of three Eucalyptus species at initial stage of planting in Jepara, Indonesia. Biodiversitas 22: 2859-2869. Industry development, climate change mitigation and renewable energy currently become the most essential challenge in tropical forest management, primarily in Indonesia. The existence of tropical forests is not only managed to maintain the stability of wood supply for commercial industries but also to reduce greenhouse gas emissions in the atmosphere and to generate energy alternatives from tree biomass. To answer this challenge, the development of fast-growing species like eucalyptus can become a good solution. However, the productivity of eucalyptus depends on its adaptability to the site condition. Therefore, understanding site-species interaction becomes the fundamental requirement before planted on a large scale. This study aimed to evaluate the initial performance of eucalyptus species developed in Jepara. An experiment consisted of three different eucalyptus species, i.e., E. alba, E. pellita, and E. urophylla, was established using a randomized complete block design. Sixteen parameters were selected to assess the eucalyptus performance, including survival, height, diameter, biomass accumulation (stem, branches, foliage, and total aboveground), crown length, crown radius, crown projection area, crown ratio, individual leaf area, individual leaf dry weight, specific leaf area, leaf mass area, and leaf area index. The comparison of the mean of tree attributes from each species was examined using ANOVA, followed by HSD Tukey. Results showed that all measured parameters indicated a significant difference among the three species (p<0.05), except for survival, foliage biomass, and crown ratio (p>0.05). The preliminary performance of E. pellita was relatively better than the other two species, mainly related to height (3.00±0.21 m), total aboveground biomass (49.86±3.60 kg ha-1), crown projection area (2.68±0.27 m2 ), and leaf area index (5.76±0.44). Our study concluded the initial performance of E. pellita in Jepara was substantially superior to E. alba and E. urophylla. Nevertheless, continuous evaluation is needed to monitor the consistent performance of those species in the study area.
Influence of land cover types on soil quality and carbon storage in Moramo Education Estate, Southeast Sulawesi, Indonesia SYAMSU ALAM; SAHTA GINTING; M. TUFAILA HEMON; SITTI LEOMO; LAODE MUHAMMAD HARJONI KILOWASID; JUFRI KARIM KARIM; YUSANTO NUGROHO; JERIELS MATATULA; PANDU YUDHA ADI PUTRA WIRABUANA
Biodiversitas Journal of Biological Diversity Vol. 23 No. 9 (2022)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d230901

Abstract

Abstract. Alam S, Ginting S, Hemon MT, Leomo S, Kilowasid LMH, Karim J, Nugroho Y, Matatula J, Wirabuana PYAP. 2022. Influence of land cover types on soil quality and carbon storage in Moramo Education Estate, Southeast Sulawesi, Indonesia. Biodiversitas 23: 4371-4376. This study investigated the influence of different land cover types on soil quality and carbon storage in Moramo Education Estate (MEE). Information is required as fundamental consideration to determine the best landscape management strategies for supporting soil conservation and climate change mitigation. Data were collected from three types of land cover generally found in this area, including forests, shrubs, and savannas. Three permanent sampling plots were randomly placed in every land cover as replicates with a size of 20 m × 20 m. Six parameters were used to describe the soil quality, i.e., soil acidity, soil organic carbon, total nitrogen, available phosphorus, exchangeable potassium, and cation exchange capacity. The above and belowground carbon storage from every plot was quantified. The soil quality and carbon storage among land cover types were compared using analysis of variance and Tukey’s honestly significant difference. Pearson’s correlation analysis was also applied to evaluate the relationship between soil quality and carbon storage. The results show that soil quality significantly differed in the exchangeable potassium and cation exchange capacity. A similar trend was also demonstrated in aboveground carbon storage. The highest average carbon storage was recorded in forests (150.50 ± 27.79 t ha?1), followed by shrubs (52.50 ± 15.02 t ha?1) and savannas (45.97 ± 4.42 t ha?1). The total carbon storage at different land covers was significantly correlated to soil acidity, available phosphorus, and cation exchange capacity. Carbon storage improved with the increased available phosphorus and cation exchange capacity. In contrast, carbon storage was negatively correlated with soil acidity. Overall, the land cover types significantly influenced soil quality and carbon storage in MEE.
Co-Authors Alnus Meinata ARI SUSANTI Dewa Ayu Sekar DJOKO SOEPRIJADI Fahmi Idris JERIELS MATATULA Jeriels Matatula JUFRI KARIM KARIM LAODE MUHAMMAD HARJONI KILOWASID M. TUFAILA HEMON Moehar Marghiy Harahap RONGGO SADONO SAHTA GINTING SITTI LEOMO SYAMSU ALAM Syamsu Alam YUSANTO NUGROHO Yusanto Nugroho