Assessment of forest fragmentation in a traditional shifting agricultural landscape in Senapati District of Manipur, Nor
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Assessment of forest fragmentation in a traditional shifting agricultural landscape in Senapati District of Manipur, Northeast India Ahanthem Rebika Devi1 · C. Sudhakar Reddy2 · Tuisem Shimrah1 Received: 12 June 2020 / Accepted: 14 October 2020 © Springer Nature B.V. 2020
Abstract Forest fragmentation is associated with the deterioration of the ecosystem’s integrity, has negative impacts on biodiversity, degradation of forest, and spatial pattern of the landscape, and become a global conservative issue. Due to advancements in technology such as remote sensing (RS) and geographic information system (GIS), there is a wider possibility of studying, monitoring, and reporting of essential biodiversity variances. The aim of the present study is to assess and quantify the extend and pattern of forest fragmentation over the time series of 2013 and 2017 in the traditional landscape area of Senapati district of Manipur, Northeast India using multi-temporal Landsat data. The Landscape Fragmentation tool has been used to categorize the forest area into four categories: patch, edge, perforated, and core forest by assigning an edge width of 100 m. The result of the study shows that area covered by patch forest has increased by 5.54%, whereas the total core forest area has decreased by 318.5 km2. The change matrix analysis showed the conversion of one category of the forest to another with the overall maximum changes is associated with degradation in the forest area. With the identification of such change using RS technology and GIS data, we could suggest immediate measures for reclamation and restoration of degraded forest areas to regain its original ecosystem integrity in terms of carbon storage, soil retention, water conservation, biodiversity conservation, and climate change mitigation. Keywords Traditional landscape · Remote sensing · GIS · Forest fragmentation
* Ahanthem Rebika Devi [email protected] C. Sudhakar Reddy [email protected] Tuisem Shimrah [email protected] 1
University School of Environment Management, GGSIP University, New Delhi 110078, India
2
Forestry and Ecology Group, National Remote Sensing Centre, Indian Space Research Organisation, Balanagar, Hyderabad 500037, India
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1 Introduction Tropical forests have been playing a significant role in strengthening the existence of biodiversity and safeguarding its richness in terms of providing robust ecosystem services (Rahman et al. 2016) by scaling up the global carbon cycle (Singh et al. 2017). Unfortunately, forests are being targeted as essential resources across the world and come under the grip of catalyst human activities resulting in various fragmentations. The concern over conserving forest fragmentation is facing several notable issues due to the disruption of the ecosystem’s component and staggering alteration of the forest environment (Chakraborty et al. 2017; Reddy et al.2013). This consecutive process of the forest ecosystem is concomitantly turned into discrete fragments and tha
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