Analysis of forest cover change at Khadimnagar National Park, Sylhet, Bangladesh, using Landsat TM and GIS data

2014 ◽  
Vol 25 (2) ◽  
pp. 393-400 ◽  
Author(s):  
Mohammad Redowan ◽  
Sharmin Akter ◽  
Nusrat Islam
Keyword(s):  
National Park ◽  
Forest Cover ◽  
Landsat Tm ◽  
Forest Cover Change ◽  
Gis Data

scholarly journals Assessing the tropical forest cover change in northern parts of Sonitpur and Udalguri District of Assam, India

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ranjit Mahato ◽  
Gibji Nimasow ◽  
Oyi Dai Nimasow ◽  
Dhoni Bushi
Keyword(s):  
Protected Areas ◽  
National Park ◽  
Large Scale ◽  
Forest Cover ◽  
Ground Truth ◽  
Forest Cover Change ◽  
Wildlife Sanctuary ◽  
Remotely Sensed Data ◽  
Ground Truth Data ◽  
Increasing Trends

AbstractSonitpur and Udalguri district of Assam possess rich tropical forests with equally important faunal species. The Nameri National Park, Sonai-Rupai Wildlife Sanctuary, and other Reserved Forests are areas of attraction for tourists and wildlife lovers. However, these protected areas are reportedly facing the problem of encroachment and large-scale deforestation. Therefore, this study attempts to estimate the forest cover change in the area through integrating the remotely sensed data of 1990, 2000, 2010, and 2020 with the Geographic Information System. The Maximum Likelihood algorithm-based supervised classification shows acceptable agreement between the classified image and the ground truth data with an overall accuracy of about 96% and a Kappa coefficient of 0.95. The results reveal a forest cover loss of 7.47% from 1990 to 2000 and 7.11% from 2000 to 2010. However, there was a slight gain of 2.34% in forest cover from 2010 to 2020. The net change of forest to non-forest was 195.17 km2 in the last forty years. The forest transition map shows a declining trend of forest remained forest till 2010 and a slight increase after that. There was a considerable decline in the forest to non-forest (11.94% to 3.50%) from 2000–2010 to 2010–2020. Further, a perceptible gain was also observed in the non-forest to the forest during the last four decades. The overlay analysis of forest cover maps show an area of 460.76 km2 (28.89%) as forest (unchanged), 764.21 km2 (47.91%) as non-forest (unchanged), 282.67 km2 (17.72%) as deforestation and 87.50 km2 (5.48%) as afforestation. The study found hotspots of deforestation in the closest areas of National Park, Wildlife Sanctuary, and Reserved Forests due to encroachments for human habitation, agriculture, and timber/fuelwood extractions. Therefore, the study suggests an early declaration of these protected areas as Eco-Sensitive Zone to control the increasing trends of deforestation.

scholarly journals Tree Line Shift in the Olympus Mountain (Greece) and Climate Change

Forests ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 985
Author(s):  
Athanasios Zindros ◽  
Kalliopi Radoglou ◽  
Elias Milios ◽  
Kyriaki Kitikidou
Keyword(s):  
Climate Change ◽  
Protected Area ◽  
Temperature Increase ◽  
National Park ◽  
Forest Cover ◽  
Line Shift ◽  
Tree Line ◽  
Mountain Area ◽  
Gis Data ◽  
The Impact

One of the effects of climate change is, among others, changes to forest ecosystems. Research Highlights: Temperature increases and upward tree line shifts are linked in many studies. However, the impact of climate change on tree lines has not been studied in Greece. Background and Objectives: The aim of this study is to assess the relation of tree line shifts and climate change in Olympus mountain, and especially in a protected area. Materials and Methods: In the Olympus mountain, which includes a protected area (the Olympus National Park core) since 1938, GIS data regarding forest cover were analyzed, while climate change from a previous study is presented. Results: Forest expansion and an upward tree line shift are proven in the Olympus mountain area. In the National Park core, the tree line shift is the result of climate change and attributed to the significant temperature increase in the growing season. Conclusions: There are strong indications that a temperature increase leads to an upward shift of the tree lines in the National Park core.

scholarly journals Linking Attitudes, Policy, and Forest Cover Change in Buffer Zone Communities of Chitwan National Park, Nepal

2016 ◽  
Vol 57 (6) ◽  
pp. 1292-1303 ◽  
Author(s):  
Jared R. Stapp ◽  
Robert J. Lilieholm ◽  
Jessica Leahy ◽  
Suraj Upadhaya
Keyword(s):  
National Park ◽  
Forest Cover ◽  
Buffer Zone ◽  
Forest Cover Change ◽  
Chitwan National Park

Incidences of wildfire hazard and its effects on forest cover change in Chitwan National Park, Nepal

2017 ◽  
Vol 6 (1) ◽  
pp. 1
Author(s):  
Khim KC Bahadur ◽  
Binod Prasad Heyojoo ◽  
Yogendra Kumar Karna ◽  
Sundar Prashad Sharma ◽  
Saroj Panthi
Keyword(s):  
National Park ◽  
Forest Cover ◽  
Forest Cover Change ◽  
Wildfire Hazard ◽  
Chitwan National Park

scholarly journals Forest Change Monitoring and Environmental Impact in Gunung Palung National Park, West Kalimantan, Indonesia

2019 ◽  
Vol 17 (2) ◽  
pp. 197
Author(s):  
Nurul Ihsan Ihsan Fawzi ◽  
Angela Meike Indrayani ◽  
Keva DeKay
Keyword(s):  
Forest Fire ◽  
El Niño ◽  
Protected Area ◽  
National Park ◽  
Forest Cover ◽  
El Nino ◽  
Anthropogenic Activities ◽  
Biodiversity Loss ◽  
Forest Cover Change ◽  
Global Rate

Gunung Palung National Park were protected since 1937 and become remain conserve largest dipterocarp forest in Borneo. The park has severe forest loss caused by anthropogenic activities and forest fire. To help inform conservation efforts about pattern and distribution of deforestation in the park, we measured forest cover change in the protected area using 11 multi-temporal Landsat series images with path/row 121/61. We found the park already loss 10.68% of its forest area in 1989 and 26% from an initial loss in 1989 in 1997 caused by El Niño event. Currently, deforestation rate is 0.21%, higher than global rate cause El Niño of 2015/16 event and make severe forest fire. The direct impact of deforestation and or degradation in a protected area is biodiversity loss and shortage water storage or flooding. This biodiversity loss created by habitat loss, fragmentation, or genetic drifting. Different wildlife and vegetation have a different response for habitat change and will reach the new equilibrium.

scholarly journals Assessing the tropical forest cover change in northern parts of Sonitpur and Udalguri district of Assam, India

2021 ◽  
Author(s):  
Ranjit Mahato ◽  
Gibji Nimasow ◽  
Oyi Dai Nimasow ◽  
Dhoni Bushi
Keyword(s):  
Protected Areas ◽  
National Park ◽  
Large Scale ◽  
Forest Cover ◽  
Ground Truth ◽  
Forest Cover Change ◽  
Wildlife Sanctuary ◽  
Remotely Sensed Data ◽  
Ground Truth Data ◽  
Increasing Trends

Abstract Sonitpur and Udalguri district of Assam possess rich tropical forests with equally important faunal species. The Nameri National Park, Sonai-Rupai Wildlife Sanctuary, and other Reserved Forests are areas of attraction for the tourists and wildlife lovers. However, these protected areas are reportedly facing the problem of encroachment and large-scale deforestation. So, this study attempts to estimate the forest cover change in the area through integrating the remotely sensed data of 1990, 2000, 2010, and 2020 with Geographic Information System. The Maximum Likelihood algorithm based supervised classification shows acceptable agreement between the classified image and the ground truth data with an overall accuracy of about 96% and a Kappa coefficient of 0.95. The results reveal a forest cover loss of 7.47% from 1990 to 2000 and 7.11% from 2000 to 2010. However, there was a slight gain of 2.34% in forest cover from 2010 to 2020. The net change of forest to non-forest was 195.17 km2 in the last forty years. The forest transition map shows a declining trend of forest remains forest till 2010 and a slight increase after that. There was a considerable decline in the forest to non-forest (11.94% to 3.50%) from 2000-2010 to 2010-2020. Further, a perceptible gain was also observed in the non-forest to the forest during the last four decades. The overlay analysis of forest cover maps show an area of 460.76 km2 (28.89%) as forest (unchanged), 764.21 km2 (47.91%) as non-forest (unchanged), 282.67 km2 (17.72%) as deforestation and 87.50 km2 (5.48%) as afforestation. The study found hotspots of deforestation in the closest areas of National Park, Wildlife Sanctuary, and Reserved Forests due to encroachments for human habitation, agriculture, and timber/fuelwood extractions. Therefore, the study suggests an early declaration of these protected areas as Eco-Sensitive Zone to control the increasing trends of deforestation.

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