| 内蒙古呼伦湖沉积物营养元素分布及环境污染评价 |
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| 引用本文： | 李卫平,李畅游,张晓晶,史小红,李兴,杨文焕. 内蒙古呼伦湖沉积物营养元素分布及环境污染评价[J]. 干旱区资源与环境, 2010, 0(6) |
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| 作者姓名： | 李卫平 李畅游 张晓晶 史小红 李兴 杨文焕 |
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| 作者单位： | 内蒙古农业大学水利与土木建筑工程学院;内蒙古科技大学能源与环境学院; |
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| 基金项目： | 国家自然科学基金项目(50669004,50969005,40901262);;内蒙古自然科学基金重点项目(200711020604);;内蒙古自治区水利厅重点支持项目(20080105);;内蒙古自治区“十一五”科技攻关资助 |
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| 摘 要： | 对呼伦湖各采样点表层沉积物营养元素(TN、TP和TOC)的分布特征及相互关系进行了分析,并对表层沉积物进行了营养元素的环境评价和重金属的地积累指数评价。结果表明:新开河、乌尔逊河及克鲁伦河入湖点(A10、F9、I2)营养元素的含量均低于其它采样点,且TOC与TN和TP的环境行为近似,说明TN和TP的沉积与生物有机质的沉积相伴随;呼伦湖沉积物碳氮比的均值约为10.2,说明内、外源有机质基本达到平衡状态。通过对沉积物的环境污染评价发现,呼伦湖沉积物有机污染较轻,仍处于较清洁状态,但有机氮的污染程度较为严重;地积累指数评价显示,主要污染元素为Cd和As,Hg、Cu和Zn属于无污染状态。
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| 关 键 词： | 呼伦湖 沉积物 重金属 营养元素 环境评价 |
Distribution of nutrient elements and environmental pollution assessment in sediment of Hulun Lake,Inner Mongolia |
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| LI Weiping,,LI Changyou,ZHANG Xiaojing,SHI Xiaohong,Li Xing,Yang Wenhuan. Distribution of nutrient elements and environmental pollution assessment in sediment of Hulun Lake,Inner Mongolia[J]. Journal of Arid Land Resources and Environment, 2010, 0(6) |
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| Authors: | LI Weiping LI Changyou ZHANG Xiaojing SHI Xiaohong Li Xing Yang Wenhuan |
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| Affiliation: | 1. College of Water Conservancy and Civil Engineering;Inner Mongolia Agricultural University;Huhhot 010018;P. R. China;2. College of Environment & Energy Resources;Inner Mongolia University of Science & Technology;Baotou 014010;Inner Mongolia;P. R. China |
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| Abstract: | The distribution and inter relationship of nutrient elements (TN,TP and TOC) in surface sediment of Hunlun Lake were analyzed. The environmental evaluation of nutrient elements and geo - accumulation evaluation of heavy metals in the sediment were also determined. The results showed that the concentrating of nutrients at the entrance of Xinkai river,Wuerxun river and Kelulun river were less than other samples. The environmental behavior of TOC was as similar as TN's and TP's. This indicated that the deposit... |
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| Keywords: | Hulun Lake sediment heavy metals nutrient elements environmental assessment |
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