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| 太湖不同营养水平湖区沉积物磷形态与生物可利用磷的分布及相互关系 | |
| 引用本文： | 王琦,姜霞,金相灿,徐玉慧.太湖不同营养水平湖区沉积物磷形态与生物可利用磷的分布及相互关系[J].湖泊科学,2006,18(2):120-126. |
| 作者姓名： | 王琦 姜霞 金相灿 徐玉慧 |
| 作者单位： | 1. 西北农林科技大学,生命科学学院,杨凌,712100;中国环境科学研究院,湖泊生态环境创新基地,北京,100012 2. 中国环境科学研究院,湖泊生态环境创新基地,北京,100012 3. 中国环境科学研究院,湖泊生态环境创新基地,北京,100012;吉林大学环境与资源学院,长春,130026 |
| 摘 要： | 采用EDTA螯合剂法和不同的化学提取法,研究了太湖3个不同营养水平湖区中8个位点表层沉积物总磷、各组分磷及生物可利用磷的含量分布,探讨了太湖不同营养水平湖区表层沉积物的释磷潜力和生物可利用磷的来源．结果表明,太湖不同营养水平湖区表层沉积物总磷、无机磷和生物可利用磷含量分布差异较大,且与各湖的营养水平相一致．有机磷含量与有机质和含水率显著相关;沉积物中Fe-P和Ca-P对生物可利用磷的贡献较大,这部分磷具有较大的潜在释放风险． |
| 关 键 词： | 太湖 沉积物 磷形态 生物可利用磷 |
| 收稿时间： | 2005-05-08 |
| 修稿时间： | 2005-09-30 |
Distribution of phosphorus and bio-available phosphorus forms and their relationship in the sediments from different regions of Lake Taihu |
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| WANG Qi,JIANG Xi,JIN Xiangcan and XU Yuhui.Distribution of phosphorus and bio-available phosphorus forms and their relationship in the sediments from different regions of Lake Taihu[J].Journal of Lake Science,2006,18(2):120-126. | |
| Authors: | WANG Qi JIANG Xi JIN Xiangcan and XU Yuhui |
| Institution: | 1.College of Life Science, Northwest Sci-Tech University of Agriculture and Forestry, Yangling 712100, P. R. China; 2. Research Center of Lake Environment, Chinese Research Academy of Environmental Science, Beijing 100012, P. R. China ; 3 . College of Environment and Resource, Jilin University, Changchun 130026, P. R. China |
| Abstract: | Concentrations of total phosphorus (TP) , their fractions and the bio-available phosphorus (BAP) in the surface sediments from three different regions of Lake Taihu are investigated. In addition, the potential release capacity of P from the surface sediment and their sources were discussed. The concentrations of TP, P fractions and BAP are coincided very well with their trophic states. The concentrations of organic P in the sediments have a good relationship with organic matter and moisture content. BAP is mainly from Fe bound P (Fe-P) and Ca bound P (Ca-P) , which show the highest potential risk of release. |
| Keywords: | Lake Taihu sediment phosphorus forms bio-available phosphorus |
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