天山北坡经济带东段浅层地下水固有脆弱性评价
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P641.8

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中国地质调查局国家重要能源基地水文地质环境地质调查项目(1212011220970)


Vulnerability assessment of shallow groundwater in eastern section of Northern Tianshan Mountain Economic Belt
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    摘要:

    基于改进的DRASTIC方法,选择地下水埋深、含水层净补给量、含水层岩性、土壤介质类型、地面坡度、浅层地下水水质、包气带介质类型、含水层渗透系数和潜水蒸发量9项评价指标,分别确定其评分体系和权重体系,并利用ArcGis 10.2中的图层空间叠加分析功能,对天山北坡经济带东段地区的浅层地下水固有脆弱性进行评价。结果表明:脆弱性较高区和中等区占研究区总面积的80.17%,地下水整体脆弱性偏高,而导致研究区浅层地下水脆弱性偏高的主要因素为地下水埋深较小、含水层渗透性较强、浅层地下水水质差。

    Abstract:

    Based on the modified DRASTIC method, nine indices, including the depth of groundwater, net recharge of the aquifer, aquifer lithology, soil medium type, surface slope, quality of shallow groundwater, medium type of aeration zone, permeability coefficient of the aquifer, and evaporation discharge of phreatic water, were chosen as assessment indices to determine the scoring system and weighting system. The overlay analysis function of ArcGis 10. 2 was used to evaluate the shallow groundwater vulnerability in the eastern section of the Northern Tianshan Mountain Economic Belt. The research results show that 80. 17% of the research area can be classified as higher and medium zones of vulnerability. In those zones, groundwater was more vulnerable. Low depth of groundwater, high permeability of the aquifer, and poor quality of shallow groundwater were the main factors that caused high vulnerability of shallow groundwater in the study area.

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王涛,徐明.天山北坡经济带东段浅层地下水固有脆弱性评价[J].水资源保护,2017,33(1):41-45.(WANG Tao, XU Ming. Vulnerability assessment of shallow groundwater in eastern section of Northern Tianshan Mountain Economic Belt[J]. Water Resources Protection,2017,33(1):41-45.(in Chinese))

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  • 收稿日期:2016-05-30
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  • 在线发布日期: 2017-01-23
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