青海湖流域水化学分析及水质初步评价

IEECAS OpenIR > 地球环境学报

	青海湖流域水化学分析及水质初步评价
其他题名	The chemical composition and quality evaluation of surface water in Qinghai Lake areas
	张琨; 蓝江湖; 沈振兴; 徐海
	2010
发表期刊	地球环境学报
卷号	1 期号:3 页码:162-168
其他摘要	为了解青海湖流域水化学的组成及水质状况，于2009 年冬季采集了青海湖湖水及流域内主要支流河水样品，并分析了水样中的化学组成。结果表明，青海湖水质总体较好，但部分指标如pH、COD 已达到水质Ⅴ级标准。另SO₄ ^2- 和Ca²⁺ 是青海湖支流水样中最主要的阴阳离子，而湖水中则是Cl^- 和Na⁺。溶解性有机碳（DOC）和化学需氧量（COD）表现出相似的变化趋势，反映出青海湖流域局部水系的有机物污染比较严重。分析青海湖湖水中Mg²⁺/Ca²⁺ 以及河水中Cl^-/Na⁺ 数据表明青海湖湖水化学组成主要由蒸发和结晶作用产生，河水的化学组成则主要是由于碳酸盐的分化作用生成。; In or der to understand the chemical composition and the quality of surface wat er in Qinghai Lake areas, water samples in river and lake were collected in 2009. In general, the water quality of surface water in Qinghai Lake was pretty good, although pH and COD exceeded the class V of water quality standard. Ca²⁺ and SO₄ ^2- were the main cation and anion of river water samples, while Cl^- and Na⁺ were the main ionic species of lake water samples. The levels of DOC and COD revealed the serious organic pollution of surface water in Qinghai Lake areas, and some measurement should be taken to improve the water quality in this area . The ions composition of water between river and lake showed remarkable different, which implied that the chemical composition of the lake water was mainly decided by evaporation and crystallization, while the chemical composition of the river water was mainly decided by differentiation of carbonate.
关键词	青海湖流域水化学特性水质分析离子组成
学科领域	地质学 ; 地球化学 ; 环境科学
收录类别	其他
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/2539
专题	地球环境学报
推荐引用方式 GB/T 7714	张琨,蓝江湖,沈振兴,等. 青海湖流域水化学分析及水质初步评价[J]. 地球环境学报,2010,1(3):162-168.
APA	张琨,蓝江湖,沈振兴,&徐海.(2010).青海湖流域水化学分析及水质初步评价.地球环境学报,1(3),162-168.
MLA	张琨,et al."青海湖流域水化学分析及水质初步评价".地球环境学报 1.3(2010):162-168.

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