摘要
对乌梁素海春季、夏季、秋季和冬季湖水及湖冰中主要离子组成、水化学类型、理化指标及水化学季节变化特征进行了分析。结果表明:乌梁素海湖泊水体阴离子中Cl-为优势离子,其次为SO24-;阳离子中Na+为优势离子,其次为Mg2+,K+含量最小;非冰封期湖泊水体矿化度大于1000mg.L-1,属于高矿化度微咸水,冰封期冰下水体中矿化度高于冰体,阴离子、阳离子浓度比冰体高出一个数量级,同时比非冰封期高出1～6倍。全年湖泊水体pH值相差不大,夏季略高,呈弱碱性,属(Cl)NaⅢ型水。
The characteristics of the seasonal changes, physical and chemical indexes, chemical types, composi- tion, and concentrations of major ions in the lake Wuliangsuhai have been analyzed. The results show that the major anions is C1- , followed by SO2- and the cation is Na＋ , followed by Mg2＋ and K＋ with a TDS of 1000mg/ L during the nonfreezing period. In the icebound season, the concentrations of the ions in the water body under the ice cover are much higher than that in the ice cover and 1 to 6 times higher than that in the nonfreezing peri- od. However, pH approximately maintains weak alkaline and stable all over the year in both the water bodies and the ice and is slightly higher in the summer. The chemical type of water is classified to [ C1 ] NaⅢ.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2013年第8期137-142,共6页
Journal of Arid Land Resources and Environment
基金
国家自然科学基金项目(51069007
51169017
51169011
50969005
40901262)
水利部公益性行业科研专项(201101021
201001039)
国际科技合作项目(2011DFA90710)
内蒙古自治区重大科技项目(20091408)联合资助
关键词
乌梁素海
主要离子
水化学类型
季节变化
冰封期
Wuliangsuhai lake
major ions
chemistry type of water
seasonal change
icebound season
