首页|Assessing forest fragmentation in north-western Himalaya:a case study from Ranikhet forest range, Uttarakhand, India

Assessing forest fragmentation in north-western Himalaya:a case study from Ranikhet forest range, Uttarakhand, India

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The northwestern Himalaya harbors high levels of biodiversity due to its unique topography, climatic conditions and heterogeneity. Forest fragmentation is one of the major threats causing a decline in biodiversity in the Himalayan region. We assesses forest fragmentation and changes in land use land cover (LULC) patterns using multi-temporal satellite data over a time span of four decades (1976–2013). Fragmentation analysis using the Landscape Fragmentation Tool (LFT) reveals a decrease in core and edge areas by 14 and 2.3%, respectively; while an increase in non-forest, patch area and perforation area by 2.1, 0.4, and 14%, respectively. The LULC dynamics show that the areas under dense forest and scrub forest have decreased by 2.8%and 1.9%, respectively;and there is an increase in open forest, crop land and fallow land area by 2.6, 1.7 and 2.1%, respectively. The quantification of landscape heterogeneity is undertaken with the help of landscape metrics computed using FRAGSTATS at class and landscape level, showing signs of increased fragmen-tation. Our study provides baseline database that can sup-port the future biodiversity conservation and sustainable forest management initiatives.

Forest fragmentationLandscape Fragmentation Tool (LFT)Land use land cover (LULC)Landscape metricsFRAGSTATS

Mohit Sharma、Anusheema Chakraborty、J. K. Garg、P. K. Joshi

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University School of Environment Management, Guru Gobind Singh Indraprastha University, New Delhi 110078, India

Department of Natural Resources, TERI University, New Delhi 110070, India

School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India

This study was supported by the Ministry of Environment&Forests (MoEF), Government of India (GoI)

Project Serial Number:R&D/NNRMS/2/2013-14

2017

10.1007/s11676-016-0311-5

林业研究(英文版)
东北林业大学,中国生态学学会

林业研究(英文版)

CSTPCDCSCDSCI
影响因子：0.365
ISSN：1007-662X
年,卷(期)：2017.28(2)
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