A Three Decades Assessment of Forest Cover Changes in The Mountainous Tropical Forest of Timor Island, Indonesia

  • Eko Pujiono Universitas Gadjah Mada Yogyakarta
  • Ronggo Sadono Faculty of Forestry, Gadjah Mada University, Jl. Agro No 1, Yogyakarta, Indonesia 55281
  • Hartono Hartono Faculty of Geography, Gadjah Mada University, Sekip Utara, Jl. Kaliurang, Yogyakarta, Indonesia 55281
  • Muhammad Ali Imron Faculty of Forestry, Gadjah Mada University, Jl. Agro No 1, Yogyakarta, Indonesia 55281
Keywords: forest cover changes, hybrid classification approach, Forest Canopy Density model, mountainous tropical forest


The Mutis Timau Forest Complex (MTFC), a remained mountainous tropical forest area in Timor Island, located in Indonesia and Timor-Leste border region, tends to decrease gradually. Unfortunately, declined forest area and their rates are not explained by reliable spatial and quantitative information. This study attempts to assess the extent and rate of forest cover changes in the MTFC during the last 30 years. We used Landsat images on three different dates: 1987, 1999, and 2017. Then, we applied a hybrid classification approach that combines the application of Forest Canopy Density model-obtained from four biophysical indices and supervised classification-maximum likelihood classification to generate land cover maps. Finally, we detected forest cover change by comparing land cover map in different years. Results illustrated that the extent and annual rate of deforestation, forest degradation, forest regrowth, and afforestation during 1987–2017 were 2,232 ha (0.36%), 4,820 ha (1.10%), 1,475 ha (0.69%), and 1,252 ha (0.40%), respectively. Such results are important for the MTFC authority to establish appropriate plan and strategies in forest management activities and can be used to support some policies/programs for combating deforestation and forest degradation.

Author Biographies

Eko Pujiono, Universitas Gadjah Mada Yogyakarta
Program Pasca Sarjana Ilmu Kehutanan
Ronggo Sadono, Faculty of Forestry, Gadjah Mada University, Jl. Agro No 1, Yogyakarta, Indonesia 55281
Fakultas Kehutanan UGM
Hartono Hartono, Faculty of Geography, Gadjah Mada University, Sekip Utara, Jl. Kaliurang, Yogyakarta, Indonesia 55281
Fakultas Geografi


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How to Cite
Pujiono, E., Sadono, R., Hartono, H., & Imron, M. A. (2019). A Three Decades Assessment of Forest Cover Changes in The Mountainous Tropical Forest of Timor Island, Indonesia. Jurnal Manajemen Hutan Tropika, 25(1), 51. Retrieved from https://jagb.journal.ipb.ac.id/index.php/jmht/article/view/24922