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首页> 外文期刊>Proceedings of the National Academy of Sciences, India, Section A. Physical Sciences >Quantifying the Dynamics and Drivers of Landscape Change in an Opencast Coal Mining Area of Central India (East Bokaro, Jharkhand)
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Quantifying the Dynamics and Drivers of Landscape Change in an Opencast Coal Mining Area of Central India (East Bokaro, Jharkhand)

机译:量化景观的动态和司机中部的一个露天煤矿区域的变化印度(东Bokaro,恰尔肯德邦)

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This paper evaluates the spatiotemporal dynamics of landscape change and identifies the primary drivers of deforestation in East Bokaro coalfields from 1972 to 2016 using grid-based change detection and spatial statistics. Landsat images for the years 1972, 2001 and 2016 were classified using a supervised maximum likelihood technique to generate the land use and land cover maps for each year. Square grids of 500 m were used to quantify the cumulative changes in land cover from 1972 to 2016. Grid-based correlation and regression analyses were used to identify the drivers of change. The results revealed that the area has undergone major changes in land cover pattern in the last 44 years due to expansion of mining activities. Forests and agriculture have reduced while settlement and barren lands have increased considerably. Extensive plantation activities on mining wastelands in the last few decades have led to an increase in the forest cover by about 8.22%. Correlations indicated that both mining and agriculture increased at the expense of forests to some degree and agricultural lands were sacrificed for the expansion of built-up areas. Regression analysis confirmed that agriculture and mining were the most influential factors driving the changes in forest cover.
机译:本文评估了时空动力学景观变化和识别的主要司机Bokaro东部的森林砍伐使用基于网格的煤田从1972年到2016年变化检测和空间统计数据。图片为1972年、2001年和2016年使用监督最大似然分类技术生成土地利用和土地覆盖每年的地图。用来量化的累积变化的土地从1972年到2016年。和回归分析用于确定司机的变化。土地覆盖面积经历了重大变化模式在过去44年的扩张采矿活动。减少沉降和贫瘠的土地大大增加。活动在过去几个矿业荒地几十年已导致增加在森林里涵盖了约8.22%。矿业和农业的增加森林在某种程度上的费用农业用地被牺牲的组合领域的扩张。证实,农业和矿业最有影响力的因素的变化森林覆盖。

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