Temporal and Spatial Characteristics of Dust Flux and Influence Factors in Open-pit Coalmine in East Junggar Basin in Xinjiang Area

ZHANG Pengfei; BAO Anming; Guli·; Jiapaer; YIN Junqi; YAO Feng; LIU Jinping

doi:10.13961/j.cnki.stbctb.2015.02.003

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Temporal and Spatial Characteristics of Dust Flux and Influence Factors in Open-pit Coalmine in East Junggar Basin in Xinjiang Area

- Temporal and Spatial Characteristics of Dust Flux and Influence Factors in Open-pit Coalmine in East Junggar Basin in Xinjiang Area
- Bulletin of Soiland Water Conservation Vol. 35, Issue 2, Pages: 1-5(2015)
- 作者机构：
  
  1. 中国科学院新疆生态与地理研究所,新疆,乌鲁木齐,830011
  2. 中国科学院大学,北京,100039
  3. 新疆环境保护科学研究院,新疆,乌鲁木齐,830011
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2015.02.003
  CLC：
- Published：2015
- 稿件说明：
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ZHANG Pengfei, BAO Anming, Guli·, et al. Temporal and Spatial Characteristics of Dust Flux and Influence Factors in Open-pit Coalmine in East Junggar Basin in Xinjiang Area[J]. Bulletin of Soiland Water Conservation, 2015, 35(2): 1-5.
DOI：

ZHANG Pengfei, BAO Anming, Guli·, et al. Temporal and Spatial Characteristics of Dust Flux and Influence Factors in Open-pit Coalmine in East Junggar Basin in Xinjiang Area[J]. Bulletin of Soiland Water Conservation, 2015, 35(2): 1-5. DOI： 10.13961/j.cnki.stbctb.2015.02.003.

摘要

[目的] 针对新疆准东五彩湾露天煤矿开采区浮尘扩散的问题

选定多种气象因子分析其对浮尘扩散和自然沉降的影响

为监测自然降尘污染提供时间和空间依据。[方法] 通过统计分析不同的气象因子同自然降尘量的相关性

确定主导影响因子;通过对自然降尘量时间序列和空间序列的分析

研究准东露天煤矿开采期引起的自然降尘污染的时间和空间变化规律。[结果] (1)随着时间的推移自然降尘量总体呈三峰趋势;(2)气象因子对于自然降尘量的影响强弱表现为:平均风速 >平均土壤湿度 >平均环境温度;(3)该地区开挖期间自然降尘分布受人为扰动和风的叠加影响。[结论] 4

6和9月份由于开采强度较大

自然降尘量相对较大;平均环境湿度对自然降尘量影响不大。风为该地区影响自然降尘的主要气象因子。自然降尘主要分布在主导风上下风向距煤矿开采区、堆渣区和工业区约8~10 km范围区域。

Abstract

[Objective] To examine the temporal and spatial characteristics of dust flux and to determine the influencing factors in Wucaiwan open-pit coalmine in the East Junggar Basin in Xinjiang area

of which

the effects of meteorological factors on dust flux and deposition were underlined. Through the analysis of temporal and spatial pattern of dust flux in mining time

theoretical basis with regard to the monitoring methods were expected to be provided.[Methods] The key impacting factors were determined by the correlations of four meteorological factors with the dust flux.[Results] (1) The results indicated that the trend of dust flux had three types; (2) The influences of meteorological factors on dust flux ranked as:wind velocity>average soil humidity>average environment temperature; (3) Deposited distribution of dusts were both affected by winds and human interferences in this region.[Conclusion] Because of the higher mining rate

the dust fluxs in April

June and September were greater than thats on other months. Ambient humidity influenced lightly on dust flux

wind was the main meteorological factors. Dust fall was mainly distributed in area about 8~10 km apart from working section

storage area and industrial estate in the predominant wind direction.

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Keywords

references

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