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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Forest cover monitoring and prediction in a Lesser Himalayan elephant landscape
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Forest cover monitoring and prediction in a Lesser Himalayan elephant landscape

机译：森林覆盖在较小的喜马拉雅大象景观中的监测和预测

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摘要

We have monitored the forest cover depletion in parts of Assam and Arunachal Pradesh over an area of 42,375 km(2) in an elephant landscape falling in the Lesser Himalaya, North East India and report the results here. The US Army topographic maps (1924) and multi-date satellite images (1975, 1990, 2000 and 2009) were visually interpreted on-screen for post-classification comparison and forest cover change detection. The exercise showed continuous high loss of forest cover during the study period. A land area having 17,846.27 km(2) forest in 1924 was depleted to 12,514.56 km(2) by 1975, 11,861.75 km(2) by 1990, 10,808.92 km(2) by 2000 and 10,256.58 km(2) by 2009, thereby indicating a constant decrease in forest cover by 12.59%, 1.54%, 2.48% and 1.31% respectively. The total loss in forest cover was estimated to be about 7590 km(2) from 1924 to 2009. The Cellular Automata Markov Model has predicted a further likely decrease of 9007.14 km(2) by 2028. In general, more districts of Assam than Arunachal Pradesh and more plains than hills faced deforestation. We have identified increasing human population and subsequent demand on the land for cultivation as major reasons for forest cover depletion.
机译：我们在Assam和Arunachal Pradesh部分监测了森林覆盖，在一个42,375公里（2）的区域，在大象景观中落在较少的喜马拉雅，西北印度，并在此报告结果。美国陆军地形图（1924）和多日期卫星图像（1975,1990,2000和2009）在屏幕上被视为分类后比较和森林覆盖变更检测。在研究期间，运动表现出持续的森林覆盖损失。 1924年，1924年的17,846.27公里（2）林的土地面积耗尽至1975年，11,861.75公里（2）到1990年，10,808.92公里（2）到2009年，到2009年，由2009年到2009年，从而表示森林覆盖持续减少12.59％，1.54％，2.48％和1.31％。森林覆盖的总损失估计为1924年至2009年的7590公里Pradesh和更多的平原比山面对森林砍伐。我们已经确定了人口的增加和随后对土地的需求作为森林覆盖的主要原因。

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