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All Journal Journal of Sylva Indonesiana Indonesian Journal of Pedagogy and Teacher Education
Ardi, Rio
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Education

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Vegetation Composition of the Succession Forest of Sumatran Orangutan (Pongo abelii) Habitat in Tropical Lowland Forest, Gunung Leuser National Park Ardi, Rio; Onrizal; Thoha, Achmad Siddik; Mansor, Mashhor
Journal of Sylva Indonesiana Vol. 8 No. 01 (2025): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jsi.v8i01.12891

Abstract

The Gunung Leuser National Park (GLNP) area, among others, consist of tropical lowland-forest ecosystems that becomes the habitat of Sumatran orangutans (Pongo abelii). The GLNP is located at Aceh dan North Sumatra Provinces and lies on 830,268,95 hectares of land. To date, the area is not free from the pressure of forest degradation, such as encroachment and land conversion to plantations. This is a perturbing condition, especially concerning the biodiversity in its lowland-forest ecosystem. The vegetation composition that renders the succession of Sumatran orangutans in the GLNP lowland-forest was obtained by conducting vegetation analysis on the restoration sites in the forest. The analysis method adopted on this research was the grid-path method. Two transect lines, 1,000 metres each, were made for this purpose. Each line consisted of 10 plots with a distance of 100 metres between plots. The measurements were made on the growth rate of seedling, sapling, pole, and tree. The data were then processed to determine the Important Value Index (IVI), Diversity Index, Richness Index of vegetation, and Dominance Index of the research area. The results showed that the vegetation composition that rendered the succession of lowland-forests of GLNP consisted of 58 species and 26 families. Ficus fistulosa had the highest IVI at the growth-stages of seedling and sapling. And Macaranga tanarius had the highest IVI at the growth-stages of pole and tree. The species Diversity Index (Shannon-Wiener index) of the vegetation on the restoration site in lowland forests of GLNP showed moderate values at the growth-stage of seedling and pole, and high values at the growth-stages of sapling and tree. The Richness Index of vegetation showed moderate values at the growth-stages of seedling and pole. As for at the stages of sapling and tree, it showed high values. The Dominance Index of the restoration site in lowland forests of GLNP showed high values at all growth-stages.
Development of Independent Curriculum Printable Modules Pancasila Education Subject Class V SD Nurul Islam Cileungsi Ardi, Rio; Ibrahim, Nurdin; Supriadi, Dedi
Indonesian Journal of Pedagogy and Teacher Education Vol. 2 No. 2 (2024): Indonesian Journal of Pedagogy and Teacher Education (August 2024)
Publisher : CV Media Inti Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58723/ijopate.v2i2.241

Abstract

This study aims to develop learning media in the form of printed modules for the Merdeka Curriculum in the fifth grade Pancasila Education subject at SD Nurul Islam, Bogor Regency. This research uses a combination of the Borg and Gall development model with Rowntree which results in a development model with the following steps; preliminary study, planning, writing preparation, initial draft development, initial trial, revision of trial results, main product field test, product revision, wide-scale field trial, final product revision and module dissemination and implementation. The feasibility test uses the validation of material experts, media experts and instructional design experts and considers the results of the user test of students and teachers.  The material experts' feasibility test yielded results of 91%, the media design experts' 90%, the instructional design experts' 87%, the student users' 94%, and the instructor users' 94%. received the designation of "extremely feasible" overall. These findings suggest that using printed modules to enhance the learning outcomes of fifth-grade Pancasila Education pupils at Nurul Islam Elementary School is rather practical. According to the study of the pretest and posttest findings, students' average pretest score was 55, their average posttest score was 91, and their highest average score was 100. The effectiveness test yielded a value of 0.8 in the high category, or percented to 80, based on the N-Gain score formula findings. A conversion level of > 76 indicates that the N-Gain score attainment level is considered effective. Therefore, using the Merdeka curriculum print module helps students in class V at Nuurl Islam Elementary School achieve better learning results in Pancasila Education courses. Based on these findings, it can be concluded that the development of the Merdeka curriculum print module in Pancasila Education subjects in grade V SD Nurul Islam is feasible and effective to use.
Co-Authors Achmad Siddik Thoha Dedi Supriadi Ibrahim, Nurdin Mansor, Mashhor Onrizal Onrizal