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All Journal Jurnal Sylva Lestari
Corbita, Victor Lobrigas
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Energy Environmental Science Materials Science & Nanotechnology

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The Potential of Talisay-Dagat (Terminalia catappa L.) for Phytoremediation in Langihan Lagoon, Butuan City, Agusan del Norte, Philippines Magcuro, Christian Granzon; Mangubat, Chaly Benson; Sullano, Allysa Concepcion Alba; Corbita, Victor Lobrigas; Mercado, Joel Andig; Casilac Jr., Cornelio Sacquiap
Jurnal Sylva Lestari Vol. 12 No. 3 (2024): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v12i3.971

Abstract

The study aims to determine the potential of Talisay-dagat (Terminalia catappa L.) for phytoremediation and to examine its influence on reducing concentrations of heavy metals in the soil of Langihan Lagoon, Butuan City. Soil, roots, and leaves were collected and brought to the Regional Soils Laboratory using microwave-assisted aqua-regia digestion and determination through Inductively Coupled Plasma Optical Emission Spectrometer. The study made use of mathematical computations such as translocation factor (TF), bioconcentration factor (BCF), and enrichment factor (EF) to determine whether the tree is a hyperaccumulator, excluder, or indicator. In the TF results, T. catappa was a hyperaccumulator for Ni and Cu, considering that the concentration exceeds one (1) while demonstrating as a possible excluder for Cr. There was also an emphasis on limited absorption of heavy metals, as evidenced by the BCF and EF value of less than 1. The results show that based on TF, BCF, and EF values, only TF shows the effectivity of restricting the root-shoot ratio translocation of Ni and Cu (TF > 1). Regression analysis found that the absorption of T. catappa was not influenced by the amount of heavy metal in the soil within the studied condition. This insight was crucial in understanding the plant’s absorption and could guide further research or practical applications in environmental management and phytoremediation. Keywords: bioconcentration factor, hyperaccumulator, phytoremediation, Terminalia catappa, translocation factor
Assessing Water Absorption and Root-Shoot Dynamics of Native Philippine Tree Species for Flood Mitigation and Environmental Management Goyo, Shiella Lynn Dali-on; Corbita, Victor Lobrigas; Acog, Glendel Cotejo; Balaba, Diana Rose; Estrada, Jessa Joy Tomoc; Mercado, Joel Andig
Jurnal Sylva Lestari Vol. 13 No. 2 (2025): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i2.1088

Abstract

Over the years, excessive stormwater run-off has been a primary environmental concern in almost every part of the world. This study aimed to assess the water absorption capacity and root-shoot ratio of the three native species, namely Vitex parviflora, Pterocarpus indicus, and Diospyrus discolor, in the Philippines. The study used an experimental design with a total number of 63 experimental seedlings. After over a month of transplanting, the researchers collected the data by uprooting 1 sample per box and recording its weight. The uprooted samples were then submerged into a container with enough water, and the plant waited until it absorbed enough water before being weighed again. Root and shoot ratio were also computed using its dry weight. The results showed a significant difference in terms of absorption rate between the three native species. V. parviflora garnered the highest water absorption rate, followed by P. indicus and D. discolor. Root-shoot ratio was highest in D. discolor while lowest in V. parviflora. No significant correlation was found between root and shoot biomass regarding water absorption capacity. These findings highlight the importance of selecting specific tree species for environmental management and flood mitigation efforts in the Philippines. Keywords: biomass, native species, stormwater run-off, water absorption
Morpho-Physiological Responses of Malabayabas (Tristaniopsis decorticata (Merr.) Peter G. Wilson & J.T. Waterh.) Seedlings Inoculated with Arbuscular Mycorrhizal Fungi Corbita, Victor Lobrigas; Combalicer, Marilyn Sabalvaro; Manalo, Mutya Ma Quintos; Galang, Marco Aragones; Maldia, Lerma San Jose
Jurnal Sylva Lestari Vol. 12 No. 2 (2024): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v12i2.845

Abstract

Malabayabas (Tristaniopsis decorticata (Merr.) Peter G. Wilson & J.T. Waterh.) of the Myrtaceae family is a vulnerable endemic tree species in the Philippines. Poor development and low regeneration rates of seedlings in their natural habitats have led to a considerable population decline of the species. This study aimed to determine the morphological and physiological growth responses of T. decorticata seedlings in different soil media inoculated with arbuscular mycorrhizal fungi applied once at a rate of 5 g per seedling for the entire duration of the experiment. Morphological parameters were collected using conventional methods, while physiological parameters were measured using LI-6400 XT Portable Photosynthesis System. Results of the study revealed that the morphological growth of seedlings was generally better in Bantay soil regardless of treatments than in Lipa soil. Interestingly, the net photosynthesis, transpiration rate, and water-use efficiency were generally higher in Lipa unsterilized soil inoculated with arbuscular mycorrhizal fungi. However, this study can not yet confirm the percentage of Arbuscular Mycorrhizal Fungi (AMF) root colonization. Thus, further research must be conducted to determine the AMF root colonization and identify potential indigenous mycorrhizal fungi in both soil media. Keywords: arbuscular mycorrhizal fungi, endemic, net photosynthesis, transpiration rate, Tristanipsis decorticata
Impact of Acacia mangium Willd. Plantation on Species Composition at Bugoy’s Peak, Barangay Bonbon, Butuan City, Philippines Calope, Reymark Moring; Villa, Nathaniel Buron; Palas, Louie Jay Fijo; Corbita, Victor Lobrigas; Casilac Jr, Cornelio Sacquiap; Cossid, Rey Naldoza; Perodes, Mark Angelo Palero
Jurnal Sylva Lestari Vol. 13 No. 3 (2025): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i3.1153

Abstract

Acacia mangium is a fast-growing tree species widely used in agroforestry and reforestation. However, it has raised concerns due to its potential ecological impacts when introduced outside its native range. This study assessed the effect of A. mangium plantations on species composition and seedling recruitment at Bugoy’s Peak, Barangay Bonbon, Butuan City, Philippines. A total of 13 plots were established using a nested quadrat design to evaluate tree diversity and regeneration patterns. Biodiversity indices and statistical tools were employed to analyze species abundance and composition within the plantation area. Results indicated that A. mangium did not exhibit signs of invasive dominance in the site. On the contrary, the presence of regenerating native species across plots suggests that local conditions may support coexistence and recruitment despite the presence of an introduced species. These findings highlight the importance of site-specific assessments in evaluating the ecological impact of non-native tree species and offer valuable insights for sustainable plantation management in biodiverse landscapes. Keywords: Acacia mangium, diversity assessment, invasive species, seedling regeneration, species composition
Community Structure of Mangrove Species in Bagakay Trail Lagoon, Claver, Surigao del Norte, Philippines Bernales, Wegie; Guiritan, Faye Angela Dingding; Pecato, Crystal Jane Lopez; Mercado, Joel Andig; Tangonan, Jennifer Aquino; Calagui, Laurence Buque; Corbita, Victor Lobrigas
Jurnal Sylva Lestari Vol. 13 No. 3 (2025): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i3.1193

Abstract

Mangroves are highly valuable ecosystems that provide essential goods and services, including stabilizing coastlines, regulating water, supporting fisheries, and sequestering carbon. This study assessed the community structures of mangroves in Bagakay Trail Lagoon, Claver, Surigao del Norte. Four sampling stations with transect lines ranging from 150–200 m laid perpendicular to the shoreline were established. Additionally, five plots, each measuring 10 m × 10 m, were established at each station, with an interval of 20–30 m between plots. The mangrove leaf specimens were collected for proper identification of species. The study’s results identified thirteen mangrove species classified under nine families, all of which were categorized as least concern species based on the International Union for Conservation of Nature. The species diversity of the sampling area falls under very low diversity (H'=0.852), which may be attributed to anthropogenic activities and the recent typhoon Rai, which devastated the area. The most ecologically important species were Avicennia officinalis and Nypa fruticans, with high importance values suggesting their dominance and significant influence on the ecosystem. It is recommended that both government and non-government organizations implement site-specific conservation interventions to improve species diversity and ensure the sustainability of the mangrove ecosystem. Keywords: community structure, diversity indices, habitat assessment, mangroves, vegetation analysis
Co-Authors Acog, Glendel Cotejo Balaba, Diana Rose Bernales, Wegie Calagui, Laurence Buque Calope, Reymark Moring Casilac Jr, Cornelio Sacquiap Casilac Jr., Cornelio Sacquiap Combalicer, Marilyn Sabalvaro Cossid, Rey Naldoza Estrada, Jessa Joy Tomoc Galang, Marco Aragones Goyo, Shiella Lynn Dali-on Guiritan, Faye Angela Dingding Magcuro, Christian Granzon Maldia, Lerma San Jose Manalo, Mutya Ma Quintos Mangubat, Chaly Benson Mercado, Joel Andig Palas, Louie Jay Fijo Pecato, Crystal Jane Lopez Perodes, Mark Angelo Palero Sullano, Allysa Concepcion Alba Tangonan, Jennifer Aquino Villa, Nathaniel Buron