吉林省雪水沉积物的理化特性分析  

Analysis on Physicochemical Property of Snow Water Sediments of Jilin Province

作　　者：闫海彬[1] 赵兰坡[1] 

机构地区：[1]吉林农业大学资源与环境学院,长春130118

出　　处：《中国农学通报》2011年第14期214-220,共7页Chinese Agricultural Science Bulletin

摘　　要：为了研究雪水中沉积物对土壤生态环境的影响,笔者采用X射线衍射法、化学分析对吉林省长春市、白城市、延吉市雪水中沉积物的颗粒组成、矿物组成、可溶性离子组成及有机碳含量进行测定。结果表明：降雪雪水中沉积物主要以〈2μm粒径为主,平均含量大小顺序为（〈2μm）〉（〉200μm）〉（20~200μm）〉（2~20μm）。雪水沉积物中原生矿物主要以石英、长石为主,黏粒矿物以蒙脱石、伊利石、高岭石、蛭石为主。大气降雪中（SO42-＋NO3-）/（Ca2＋＋NH4＋）=1.38,具有对酸的较强中和能力,不易发生酸性降水,对环境酸化不造成影响。降雪沉积物中有机碳含量较高,均值为52.85g/kg。In order to investigate the impact of sediment in snow water on the soil ecological environment, the authors analyzed the particle composition, mineral composition, soluble ions and organic carbon which fromed sediment in snow water of Changchun, Baichen, Yanji, JiLin by X-ray diffraction, chemical methods. The results showed that the mainly particle size of sediment in snow water was〈 2 μm. The order of average content was： （〈2 μm）〉（〉200 μm）〉（20-200 μm）〉（2-20 μm）. The major primary mineral of sediment in snow water were quartz, feldspar, clay mineral composed by montmorillonite, illite, kaolinite, vermiculite. In atmospheric snow （SO 4 2- ＋NO 3 - ）/（Ca 2＋ ＋NH 4 ＋ ） was 1.38, with more strong neutrality to acid, it would not occur acid rain and would not impact on the environment. The organic carbon of sediment in snow water was higher, average content was 52.85 g/kg.

关 键 词：X射线衍射 雪水沉积物 矿物组成 颗粒组成 可溶性离子 

分 类 号：X513[环境科学与工程—环境工程]