AUC Geographica (Acta Universitatis Carolinae Geographica) is a scholarly academic journal continuously published since 1966 that publishes research in the broadly defined field of geography: physical geography, geo-ecology, regional, social, political and economic geography, regional development, cartography, geoinformatics, demography and geo-demography.

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AUC GEOGRAPHICA, Vol 57 No 2 (2022), 181–188

Trajectories of forest cover change in Chakrashila Wildlife Sanctuary (India) between 2000 and 2020 using Landsat imagery

Sanswrang Basumatary

published online: 20. 12. 2022


Forest cover changes in the Chakrashila Wildlife Sanctuary, in the north eastern Indian state of Assam between 2000 and 2020 were assessed using Landsat 5 TM (2000 and 2010) and Landsat 8 OLI (2020) satellite data. The objective of the study was to examine the temporal variations, if any, of forest cover in the Sanctuary. The satellite images of 2000, 2010 and 2020 were classified using supervised classification into three different categories viz: dense forest, open forest, and barren land. Based on a maximum likelihood classifier and using standard accuracy assessments, the results indicated that the area covered by barren land and open forest increased between 2000 and 2010 but decreased between 2010 and 2020. Similarly, dense forest had decreased by 22.32% between 2000 and 2010 but increased by 15.19% between 2010 and 2020. These changes occurred reflecting the positive results emanating from conservation policies and afforestation efforts by the primary stakeholder, the state forest department, in recent years. Such efforts were linked to the enhanced institutional status of the protected area, which had been upgraded from a Reserved Forest in 1966 to that of a Wildlife Sanctuary in 1994.

keywords: forest cover change; Chakrashila Wildlife Sanctuary; satellite imageries; supervised classification

references (1)

1. Talukdar, S., Gupta, A. (2018): Attitudes towards forest and wildlife, and conservation-oriented traditions, around Chakrashila Wildlife Sanctuary, Assam, India. Oryx 52(3), 508-518. CrossRef

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Trajectories of forest cover change in Chakrashila Wildlife Sanctuary (India) between 2000 and 2020 using Landsat imagery is licensed under a Creative Commons Attribution 4.0 International License.

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