| 引用本文: | 侯亚敏,冯新斌,仇广乐,阎海鱼.贵州百花湖表层水中不同形态汞的分布规律.湖泊科学,2004,16(2):126-133. DOI:10.18307/2004.0205 |
| HOU Yamin,FENG Xinbin,QIU Guangle,YAN Haiyu.Distribution of Different Species of Mercury in Baihua Lake, Guizhou Province. J. Lake Sci.2004,16(2):126-133. DOI:10.18307/2004.0205 |
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| 摘要: |
| 均匀布点采集百花湖表层水样44个,对水样不同形态汞含量进行了分析,并现场测定水质参数。采用经典统计学与半变异函数拟合相结合的方法,研究了百花湖表层水中不同形态汞含量的空间变异性。根据半变异函数拟合的结果,在ArcGIS软件的支持下进行克立格插值,以此来揭示百花湖表层水中不同形态汞含量的空间分布规律。研究表明:百花湖表层水中的汞污染主要来自上游,随水体流动汞污染减少;但也有一些区域可能因富营养化而使颗粒态汞和总汞含量增加。 |
| 关键词: 百花湖 形态汞 地统计学 半变异函数 Kriging插值 空间变异性 |
| DOI：10.18307/2004.0205 |
| 分类号: |
| 基金项目:中国科学学院海外杰出人才计划;国家自然科学基金(40173037);中国科学院创新项目联合资助 |
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| Distribution of Different Species of Mercury in Baihua Lake, Guizhou Province |
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HOU Yamin1,2, FENG Xinbin1, QIU Guangle1,2, YAN Haiyu1,2
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1.State Key Laboratory of Environmental Geochemistry, Chinese Academy of Sciencel, Guiyang 550002, P. R. China;2.Graduate School, Chinese Academy of Sciences, Beijing 100039, P. R. China
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| Abstract: |
| Forty-four surface water samples were collected in Baihua Lake, Guizhou Province.The different species of mercury and water quality parameters, such as reactive mercury, dissolved mercury, particulate mercury, were tested.The spatial variability of different species of mercury in the surface water of Baihua Lake were studied based on the mathematical statistics and Geostatistics methods (Kriging).On the basis of the models of semivariance fitness, we used ArcGIS software to proceed Kriging interpolator to reveal the distribution patterns of different species of mercuiy in the surface water of Baihua Lake.The results indicate that mercury contamination in the surface water of Baihua Lake is due to headwaters, then mercury contents will decrease with the direction of flowing water.But in the region of eutrophication, the contents of particulate mercury and total mercury increase. |
| Key words: Baihua Lake species of mercury geostatistics semi variance Kriging spatial variability |
