| 向海湿地沉积芯重金属对流域环境污染示踪 |
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| 引用本文： | 王国平,刘景双,高峰.向海湿地沉积芯重金属对流域环境污染示踪[J].地理科学,2001,6(6):549-553. |
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| 作者姓名： | 王国平 刘景双 高峰 |
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| 作者单位： | 1. 中国科学院长春地理研究所,
2. 松辽流域水资源保护局, |
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| 基金项目： | 中科院创新工程“中国典型湿地水陆相互作用过程、资源环境效应及调控”(KZCX2－302)资助。 |
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| 摘 要： | 选取霍林河下游向海沼泽湿地为研究对象，采用得力沉积芯采样钻钻孔采样与剖面切割采样相结合的方法，采集了10个沉积柱芯及剖面，以沉积物重金属元素Cu、Zn、Cr、Ni、Co、Pb、Fe、Mn及pH、TOC在剖面中的分布进行高分辨率研究。结晶显示，剖面上部沉积物表层沉积序列内明显富集了Fe、Mn、Zn等重金属，并与TOC含量呈显著相关，与此相反，大多数沉积柱芯下层的重金属含量相对较低。研究表明，高分辨率取样易找出元素间相关性，那些水源来自同一相对稳定外源输入的沉积柱芯中的重金属与TOC表现出更显著的相关性，越靠近河流、淹没频率直蒿，沼泽湿地表层沉积物中重金属元素含量趋向增高。
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| 关 键 词： | 重金属 沉积芯 向海湿地 流域环境 沼泽湿地 铜 锌 镉 镍 |
| 文章编号： | 1000-0690(2001)06-0549-05 |
Environmental Pollution Tracing of the Catchment by Heavy Metals in Sediment Cores of the Xianghai Wetlands |
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| WANG Guo-ping,LIU Jing-shuang,GAO Feng. Changchun Institute of Geography. CAS,Changchun,Jilin ,. Protection Agency of Water Sources in Songliao Catchments,Changchun,Jilin.Environmental Pollution Tracing of the Catchment by Heavy Metals in Sediment Cores of the Xianghai Wetlands[J].Scientia Geographica Sinica,2001,6(6):549-553. |
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| Authors: | WANG Guo-ping LIU Jing-shuang GAO Feng Changchun Institute of Geography CAS Changchun Jilin Protection Agency of Water Sources in Songliao Catchments Changchun Jilin |
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| Institution: | WANG Guo-ping1,LIU Jing-shuang1,GAO Feng21. Changchun Institute of Geography. CAS,Changchun,Jilin 130021,2. Protection Agency of Water Sources in Songliao Catchments,Changchun,Jilin 130021 |
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| Abstract: | Here we report a case study on the Xianghai wetlands at downstream of the Huolin River. Core sam-p1es were taken with a gravity corer and profile samples dug by handed-tools. Ten cores and profiles were takenand studied with high-resolution to Cu, Zn, Cr, Ni, Co, Pb, Fe, Mn, pH, TOC and TN in sediments. Withinthe upper part of the sedimentary sequences, there were clear enrichments of Zn, Fe and Mn, and they dis-played remarkable re1ativity with TOC, especially for the cores whose water source was coming from the samerelatively stable outer-source input. On the contrary, the content of heavy metals in the most of the lower partsof the core profiles were re1atively 1ower and closed to natural gepchemica1 background 1eve1s. It is easy to findthe relativity among the elements if sampling with high-resolution. The nearer to the river and the higher inun-date frequency by its floods, the higher of the contents of heavy metals within the upper part of the sedimentarysequences. |
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| Keywords: | heavy metal sediment cores Xianghai wet1ands |
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