采煤区水土资源损毁相关影响因素分析

Correlation Analysis of the Factors that Affect Water and Soil Qualities in Coal Mining Areas

【目的】探讨煤炭企业生产视角下水土资源损毁的关键影响因素。【方法】借助EViews软件对研究区内12个煤炭企业共15个水土资源损毁影响因素进行散点拟合,定量分析了各因素对水土资源损毁的影响;选取7个影响因素进行核密度估计并描述了其曲线特征,结合多元回归模型分析了多因素对研究区水土资源损毁的综合影响并确定了其主要影响因素。【结果】影响研究区水资源耗损的主要因素是地下水径流量和总用水量,二者对数的核密度曲线双峰不明显,地下水径流量核密度曲线变化区间较大;服务年限与井田面积是土地资源损毁主要的影响因素,其对数的核密度曲线都是单峰,服务年限核密度曲线走势陡峭。【结论】研究区水土资源损毁的主要影响因素是地下水径流量、总用水量、服务年限与井田面积。

【Objective】Coal mining could pollute water and soil and in this paper we analyzed some factors which we believed have detrimental impact on soil and water qualities in coal mining regions.【Method】The analysis was based on data collected from 12 coal mines. We used the EViews software to analyze 12 factors which we believe have direct or indirect impact on water and soil qualities. For seven out of the 15 factors, we analyzed them using the nuclear density estimation method and quantified their statistical and correlative characteristics. Combined with the multiple regression analysis, the comprehensive impact of these factors on water and soil qualities in the studied mines was determined, from which we found the main factors.【Result】The main factors affecting water consumption in the 12 mines were groundwater flow and total water consumption. The logarithm of the nuclear density curves of the two factors did not have noticeable peaks. The nuclear density curve of groundwater flow varied widely, indicating that there was a difference between the 12 coal mines. The longevity of service and the size of the mines were the main factors responsible for soil deterioration, and the peaks of their logarithmic nuclear density curves were close. The steep nuclear density curve for the longevity of service indicated that the size of the coal mines had a significant impact on soil quality.【Conclusion】The main factors impacting water and soil qualities in the studied coal mines are groundwater flow, total water consumption, and longevity of service and size of the mines.