三江平原水环境中可溶性铁的分布特征研究  

Distribution of Water-soluble Iron in Water Environment of Sanjiang Plain

作　　者：潘月鹏[1] 阎百兴[1] 路永正[1] 杨宗兴[2] 张凤英[1] 

机构地区：[1]中国科学院东北地理与农业生态研究所湿地生态与环境重点实验室 [2]东京农工大学农学部

出　　处：《地理科学》2007年第6期820-824,共5页Scientia Geographica Sinica

基　　金：国家自然科学基金(40771035);中国科学院东北地理与农业生态研究所学科前沿领域项目(KZCX3-SW-NA3-15);中日合作项目(三江平原生物地球化学作用研究)资助

摘　　要：2005-2007年共6次采集了三江平原主要河流和水田集中分布区的地下水水样，分析可溶性铁含量。结果显示：地下水中Fe^2＋含量普遍高于Fe^3＋；可溶性铁含量变化于0．03～21．00mg／L，平均为5．48mg／L，最大值出现在夏汛期。江河水中可溶性铁的主要形态是Fe^3＋；可溶性铁含量的变化范围是0．04～2．05mg／L，平均为0．42mg/L，峰值也出现在夏汛期；沼泽性河流中可溶性铁含量高于非沼泽性河流。松花江可溶性铁输出通量为240×10^5 kg／a，黑龙江为200×10^5 kg／a，乌苏里江为70×10^5 kg／a。River and groundwater samples were collected from Sanjiang Plain in Northeast China in middle Heilong River watershed from 2005 to 2007 to study the temporal and spatial distribution of water-soluble ionic iron （WSIFe, including Fe^2＋ and Fe^3＋ ）. It can be concluded that the concentration of Fe^2＋ is generally higher than Fe^3＋ in the groundwater. The concentration of WSIFe mg/L, and fluctuated with the groundwater level. In ranged from 0.03 to 21.00 mg/L, with an average of 5.48 the river water samples, WSIFe presented in form of Fe^3＋ , and the concentration of WSIFe ranged from 0.04 to 2.05 mg/L, with an average of 0.42 mg/L. The content reached a peak in the flood season. The concentration of WSIFe in the rivers derived from marsh is much higher compared to the river derived from forest areas. The WSIFe flux of upper-middle Heilong River, lower River and lower Wussuri River was 200×10^5 kg/yr,240 ×10^5 kg/yr and 70×10^5 kg/yr, respectively.

关 键 词：可溶性铁 河水 地下水 三江平原 

分 类 号：X142[环境科学与工程—环境科学]