利用CAS模型研究土地利用方式对地下水中Cr(VI)浓度的影响——以成都平原中部地区为例

IF 0.9 4区 环境科学与生态学 Q4 WATER RESOURCES Water Resources Pub Date : 2023-11-24 DOI:10.1134/s0097807822601455
Z. Jing, L. Long-Chuang, Z. Jing-Gang, Z. Jian-Min, Du Hong Bo
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引用次数: 0

摘要

摘要地下水是成都平原最重要的可利用水资源之一。部分农村地区为唯一饮用水,部分地区浓度达不到饮用水标准。因此,研究土壤中Cr(VI)浓度与土地利用类型的关系具有重要意义。获取了102口地下水采样井中Cr(VI)的浓度,并采用克里格插值法对地下水中六价铬的空间分布进行了插值。利用ENVI对土地利用类型进行分析。采用贡献区替代模型研究土地利用类型对Cr(VI)浓度的影响。结果表明:(1)六价铬在农田、花圃/林地和温室中富集;(2)六价铬污染区域的“贡献区替代物”为半径为1750 m的圆形区域。区域地下水中六价铬污染物与温室和农田有良好的相关性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Using CAS Models to Investigate the Influence of Land Use on the Concentration of Cr(VI) in Groundwater, Case Study in the Central Region of Chengdu Plain, China

Abstract

Groundwater is one of most important available water resources in Chengdu Plain. It is sole drinking water in some rural areas, while the concentration of some areas could not meet the drinking water standards. Thus, it is significant to investigate the relationship between the concentration of Cr(VI) and land use types. The concentration of Cr(VI) in 102 groundwater sampling wells were obtained, and the spatial distribution of hexavalent chromium in groundwater was interpolated by Kriging interpolation method. Then, the land use types were analyzed by ENVI. Contributing area surrogate models were employed to investigate the influence of land use type on the concentration of Cr(VI). The following results were obtained, (1) the hexavalent chromium concentrated in crop land, flower-plant/forest land and greenhouse land. (2) The “contributing area surrogate” for the hexavalent chromium pollution region is circular area with a radius of 1750 m. And the pollutant of hexavalent chromium in region groundwater has a good correlation with greenhouse and crop land.

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来源期刊
Water Resources
Water Resources 环境科学-水资源
CiteScore
1.60
自引率
20.00%
发文量
86
审稿时长
6-12 weeks
期刊介绍: Water Resources is a journal that publishes articles on the assessment of water resources, integrated water resource use, water quality, and environmental protection. The journal covers many areas of research, including prediction of variations in continental water resources and regime; hydrophysical, hydrodynamic, hydrochemical and hydrobiological processes, environmental aspects of water quality and protection; economic, social, and legal aspects of water-resource development; and experimental methods of studies.
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