扎龙湿地土壤中重金属铬的对比分析  

Comparative analysis of CR in Soil of Zhalong Wetland

作　　者：孔德坤[1] 李春景[1] 王永洁[2] 罗金明[2] 

机构地区：[1]延边大学理学院,吉林延吉133002 [2]齐齐哈尔大学地理系,黑龙江齐齐哈尔161005

出　　处：《延边大学农学学报》2013年第1期61-65,共5页Agricultural Science Journal of Yanbian University

基　　金：国家教育部留学回国项目[教外司留(2009)1341号]

摘　　要：运用微波消解-可见分光光度法测定扎龙湿地不同类型土壤中的铬(Cr),着重对其进行对比得出结论:在保护区范围内,重金属污染主要来源于地表径流补给,而地下径流补给对于表层土壤影响并不大;扎龙湿地内铬顺着地表径流流向逐渐减少,东升水库测定的铬明显高于下游地区,而在保护区东北有地表径流补给的方向铬急剧升高向保护区内又逐渐减小;正常的人类从事第一产业部门的生产活动对于湿地的重金属污染很小;通过实验对比发现,在湿地内沼泽土中的铬高于草甸土。Determined the contents of chromium in different soil types of Zhalong wetland by microwave digestion-spectrophotometry, following comparative analysis,the results showed that in the context of pro tected areas, major supply comes from surface runoff contaminated by heavy metals, topsoil and underground runoff recharge is not large; Chromium in surface runoff flows in Zhalong wetland decline Dongsh- eng determination of chromium-significantly higher than the downstream of the reservoir area, reserve northeast of surface runoff recharge chromium to the reserves to rise sharply in the direction of diminish- ing~ Normal human beings engaged in the productive activities of the primary sector is small for the heavy metal pollution of wetlands; By comparison found that within the wetland swamps of chromium in soils above the Meadow soil.

关 键 词：扎龙湿地 土壤 重金属 铬 

分 类 号：S155.4[农业科学—土壤学]