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新疆博斯腾湖重金属污染的沉积记录
  • ISSN号：1672-9250
  • 期刊名称：《地球与环境》
  • 时间：0
  • 分类：P595[天文地球—地球化学;天文地球—地质学]
  • 作者机构：[1]中国科学院地球化学研究所环境地球化学国家重点实验室,贵阳550002, [2]中国科学院研究生院,北京100049, [3]中国环境科学研究院湖泊生态环境创新基地国家环境保护湖泊污染控制重点实验室,北京100012
  • 相关基金：中国科学院重要方向项目（KZCX2-YW-102）,国家杰出青年基金项目（40525011）,国家自然科学基金重点项目（40632011）
作者： 张永三[1,2], 吴丰昌[3], 张润宇[1], 廖海清[3], 凌宏文[1]
关键词： 博斯腾湖, 沉积记录, 重金属, 富集因子, 地质积累指数, 农田排水, Bosten Lake, sediment record, heavy metal, enrichment factor, geo-accumulation index （Igeo）, farmlandwastewater
中文摘要：

通过测定柱芯沉积物中重金属含量,分析了新疆博斯腾湖重金属污染水平、来源及其变化趋势。结果表明,博斯腾湖西岸Pb、Zn和Cu的地质积累指数均小于0.5,污染较轻,主要来源于自然源。西南小湖区重金属Zn、Cu、Ni、Co污染较轻,主要来源于岩石风化等地球化学过程;重金属Pb和Cd污染中等,主要来源于农业活动中磷酸盐肥料的使用,1960 s以来增加显著,近年来呈明显的上升趋势。

英文摘要：

Based on the investigation of heavy metal concentrations in sediment cores, the contamination, possible sources and trends of metals in the BOSTEN Lake were discussed. With the geo-accumulation index （Igeo） less than 0. 5, the results showed that the sediments in the west of the lake were less polluted by Pb, Zn and Cu, which mainly originated from natural sources. In the southwest o{ the Bosten Lake, the concentrations o{ Zn, Cu, Ni and Co were at lower levels based on Ig~, which was attributed mainly to the effects of biogeochemical processes of rock weathering. On the contrary, the moderate pol- lution of Pb and Cd was found in the sediments of the southwest of the Bosten Lake, and the profile showed that Pb and Cd have increased evidently since the late 1960 s＇ due to the extensive application of phosphate fertilizers.

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期刊信息
  • 《地球与环境》
  • 中国科技核心期刊
  • 主管单位:
  • 主办单位:中国科学院地球化学研究所
  • 主编：王世杰
  • 地址：贵阳市林城西路99号
  • 邮编：55081
  • 邮箱：dzdh@mail.gyig.ac.cn
  • 电话：0851-85891741
  • 国际标准刊号：ISSN：1672-9250
  • 国内统一刊号：ISSN：52-1139/P
  • 邮发代号:66-26
  • 获奖情况:
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,英国动物学记录,中国中国科技核心期刊,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）
  • 被引量:5109