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Impact assessment of coal mining induced subsidence on native soil of South Eastern Coal Fields: India
Geomechanics and Geophysics for Geo-Energy and Geo-Resources ( IF 5 ) Pub Date : 2020-03-13 , DOI: 10.1007/s40948-020-00156-y
Ashish Kumar Vishwakarma , Tusarkanta Behera , Rajesh Rai , Ashwani Kumar Sonkar , Anand Prakash Singh , Bal Krishna Shrivastva

Understanding the consequences of mining is most important in order to prevent negative outcomes for the environment as natural systems are used by humans for agriculture/silviculture. The present manuscript deals with the impact of subsidence due to underground coal mining on native soil. Depth-wise changes in soil texture and nutrient components in four layers; 0–15 cm, 16–30 cm, 31–45 cm and 46–60 cm were quantified along the subsidence prone land of the study area in top (within the extension zone; Zone I), middle (within inner-edge zone; Zone II) and bottom (around centre of the subsidence trough; Zone III) of a three and half year mining subsided land and compared it with soil texture and nutrient component status of an adjacent undamaged zone (UZ). An alteration in the Physicochemical characteristics of the soil after subsidence was observed. It had a positive impact on most of the soil characteristic parameters at Zone III. Available nitrogen, phosphorous and potassium (AN, AP and AK) were increased by 13.00%, 44.47% and 26.7%, respectively in 0–15 cm layer; 16.42%, 45.12% and 28.08%, respectively in 16–30 cm layer; 15.74%, 47.45% and 22.97%, respectively in 31–45 cm layer and 14.86%, 38.94% and 18.53%, respectively in 46–60 cm layer. A significant increase in silt + clay content, organic carbon and electrical conductivity were also reported.

中文翻译:

煤炭开采沉陷对东南煤田原生土壤的影响评估:印度

为了防止对环境的负面影响,了解采矿的后果是最重要的,因为人类将自然系统用于农业/造林。本手稿涉及地下煤矿开采对天然土壤的沉陷影响。四层土壤质地和养分成分的深度变化;沿着研究区域顶部(延伸区域内; I区),中部(内缘区域内;内缘;内缘;三年半开采的塌陷土地的II区和底部(沉降槽中心附近; III区),并将其与相邻未破坏区(UZ)的土壤质地和营养成分状态进行了比较。沉降后土壤的理化特性发生了变化。它对III区的大多数土壤特征参数产生了积极影响。在0-15 cm的土壤层中,有效氮,磷和钾(AN,AP和AK)分别增加了13.00%,44.47%和26.7%。在16-30 cm的层中分别为16.42%,45.12%和28.08%;31–45 cm层分别为15.74%,47.45%和22.97%,46-60 cm层分别为14.86%,38.94%和18.53%。还报告了淤泥+粘土含量,有机碳和电导率的显着增加。分别在16-30厘米的层中;31–45 cm层分别为15.74%,47.45%和22.97%,46-60 cm层分别为14.86%,38.94%和18.53%。还报告了淤泥+粘土含量,有机碳和电导率的显着增加。分别在16-30厘米的层中;31–45 cm层分别为15.74%,47.45%和22.97%,46-60 cm层分别为14.86%,38.94%和18.53%。还报告了淤泥+粘土含量,有机碳和电导率的显着增加。
更新日期:2020-03-13
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