International Journal of Science and Environment
Vol. 6 No. 1 (2026): February 2026

Land Cover Change Dynamics As an Indicator of Deforestation Rate in Gunung Leuser National Park

Rihady Agus (Master Program of Natural Resources and Environmental Management, Postgraduate School, Sumatera Utara University Campus Padang Bulan, Medan 20155, North Sumatra, Indonesia)
Rahmawaty Rahmawaty (Master Program of Forestry, Deli Serdang, Sumatera Utara University, Medan, 20155, Indonesia)
T. Alief Aththorick (Faculty of Forestry, Deli Serdang, Sumatera Utara University, Medan, 20155, Indonesia)
Samsuri Samsuri (Faculty of Biology, Sumatera Utara University Campus Padang Bulan, Medan 20155, North Sumatra, Indonesia , Medan, North Sumatra, Indonesia)
Erwin Nyak (Faculty of Agriculture, Sumatera Utara University Campus Padang Bulan, Medan 20155, North Sumatra, Indonesia)



Article Info

Publish Date
21 Jan 2026

Abstract

Gunung Leuser National Park (GLNP) is one of the most important conservation areas in Indonesia, serving as a habitat for various rare and protected species such as the Sumatran tiger, elephant, rhinoceros, and orangutan. Nevertheless, this area faces serious threats from deforestation caused by human activities, including illegal logging, agricultural expansion, and infrastructure development. This study aims to analyze the rate of deforestation occurring in GLNP from 2008 to 2023, to examine land cover changes in the park up to 2033, and to assess community attitudes, perceptions, and participation related to deforestation in the GLNP area. The methods employed include multi-temporal satellite image analysis (Landsat 5 and Landsat 8) using supervised classification through Google Earth Engine (GEE) and Geographic Information System (GIS) tools. Data accuracy was evaluated using ground truth validation, along with an assessment of community perceptions and participation regarding land cover changes. The results indicate that during the study period, forest area decreased by approximately 18,822.71 hectares (2.38%), accompanied by an increase in shrubland and other non-forest land covers, indicating gradual land conversion. The dominant factors driving deforestation in GLNP include proximity to roads and settlements. Future deforestation rates were predicted using a Cellular Automata–based spatial modeling approach, which estimates land conversion patterns in the absence of mitigation measures. Deforestation in the GLNP area is closely linked to the role of surrounding communities; the findings reveal that local communities are generally less actively involved and less willing to contribute to conservation efforts in GLNP. This study provides important insights for conservation planning and sustainable land-use policy formulation in Gunung Leuser National Park.

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Journal Info

Abbrev

IJSE

Publisher

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Mathematics Physics

Description

International Journal of Science and Environment (IJSE) is to provide a research medium and an important reference for the advancement and dissemination of research results that support high-level research in the fields of Science and Environment . Original theoretical work and application-based ...