Estimation of Forest Canopy Cover and Forest Fragmentation Mapping Using Landsat Satellite Data of Silabati River Basin
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Estimation of Forest Canopy Cover and Forest Fragmentation Mapping Using Landsat Satellite Data of Silabati River Basin (India) Biswajit Bera1 · Soumik Saha2 · Sumana Bhattacharjee3 Received: 14 May 2020 / Accepted: 11 October 2020 © The Author(s) 2020
Abstract Forest is an imperative part of environment but in the recent years, forest areas are being transformed due to population expansion, unscientific urbanization and a rising trend of industrialization in some countries. Dense forests habitats have been fragmented into patch forest region. This paper attempts to find out the forest canopy or crown density and forest fragmentation areas as well as to identify the spatiotemporal changing paradigms of forest within the Silabati river basin. Forest Canopy Density and fragmentation models are an important craftsmanship to examine the health of the forest or vegetation in a given area. Various indices such as Normalize Difference Vegetation Index, Advanced Vegetation Index, Shadow Index, Bareness Index and ultimately weightage overlay analysis methods have been adopted to determine forest health or anthropogenic stress on forest habitats. Higher weight has been assigned to dense forest areas and open forest area has been given lower weight. The result shows that forest canopy or crown cover as well as forest density are radically reduced in between the time period 1998 and 2009. It is also stated that the total 116.549 km2 areas have been degraded during 11 years period (1998–2009) with a rate of 10.59 km2/year. Meanwhile, 180.02 km2 forest areas have been regained in between 2019 and 2009 with a rate of 18 km2/year that is possible only due to implementation of forest policies exclusively execution of participatory or joint forest management techniques. Keywords Forest canopy · Fragmentation · River basin · Joint forest management · Digital maps
Schätzung der Waldüberschirmung und Waldfragmentierung mit Hilfe von LandsatSatellitendaten des Silabati-Flussbeckens (Indien) Zusammenfassung Der Wald ist ein grundlegender Bestandteil der Umwelt, aber in den letzten Jahren werden Waldgebiete aufgrund von Bevölkerungswachstum, unwissenschaftlicher Urbanisierung und einem steigendem Trend der Industrialisierung in einigen Staaten verändert. Die Lebensräume der dichten Wälder wurden in den Forstregionen fragmentiert. Dieses Papier versucht, die Waldkronen oder Kronendichte und Waldfragmentierungsgebiete zu finden sowie die räumlichzeitlich wechselnden Paradigmen des Waldes innerhalb des Silabati-Einzugsgebiets zu identifizieren. Forest Canopy Density (FCD) und Modelle * Sumana Bhattacharjee [email protected] Biswajit Bera [email protected] 1
Department of Geography, Sidho-Kanho-Birsha University, Ranchi Road, P.O. Purulia Sainik School, Purulia 723104, India
2
Bankura, West Bengal, India
3
Department of Geography, Jogesh Chandra Chaudhuri College, Calcutta University, 30, Prince Anwar Shah Road, Kolkata 700 033, India
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Vol.:(0123456789)
KN - Journal of Cartography and Geographic Informa
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