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| 磷和硅在湖泊沉积物上的释放特征及形态变化研究 | |
| 引用本文： | 吕昌伟,高际玫,王维,何江,孙园园,麻涛,张细燕,崔萌,万丽丽.磷和硅在湖泊沉积物上的释放特征及形态变化研究[J].农业环境科学学报,2011,30(11). |
| 作者姓名： | 吕昌伟 高际玫 王维 何江 孙园园 麻涛 张细燕 崔萌 万丽丽 |
| 作者单位： | 1. 内蒙古大学环境与资源学院,呼和浩特010021;内蒙古大学环境地质研究所,呼和浩特010021 2. 内蒙古环境监测中心站,呼和浩特,010011 3. 内蒙古大学环境与资源学院,呼和浩特,010021 |
| 基金项目： | 国家自然科学基金项目(41003049,40863003); 内蒙古自然科学基金项目(2009BS0601,2010BS0601); “国家大学生创新性实验计划”项目(20081012614) |
| 摘 要： | 以乌梁素海(WLSH)和岱海(DH)表层沉积物为吸附剂,开展了磷硅在2个湖泊沉积物上的释放实验研究,同时采用连续提取法探讨了释放后的磷硅形态变化。结果表明,磷和硅在2个湖泊沉积物上的释放行为均可用Elovich方程描述;0～20min为磷的快速释放阶段,此时段内约有75%的吸附磷迅速从沉积物上解吸并释放至上覆水中;0～2h为硅的快速释放阶段,此阶段内约有40%的吸附硅从沉积物上解吸并释放至上覆水中;总体上,沉积物中Ex-P、Al-P、Fe-P及IEF-Si、CF-Si具有较强的释放潜力。 |
| 关 键 词： | 释放特征 形态分布 磷 硅 沉积物 |
Release Characteristics and Form Changes of Phosphorus and Silicate in Lakes Sediments |
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| L Chang-wei,GAO Ji-mei,WANG Wei,HE Jiang,SUN Yuan-yuan,MA Tao,ZHANG Xi-yan,CUI Meng,WAN Li-li.Release Characteristics and Form Changes of Phosphorus and Silicate in Lakes Sediments[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2011,30(11). | |
| Authors: | L Chang-wei GAO Ji-mei WANG Wei HE Jiang SUN Yuan-yuan MA Tao ZHANG Xi-yan CUI Meng WAN Li-li |
| Institution: | L(U) Chang-wei,GAO Ji-mei,WANG Wei,HE Jiang,SUN Yuan-yuan,MA Tao,ZHANG Xi-yan,CUI Meng,WAN Li-li |
| Abstract: | Taking surface sediments from the Wuliangsuhai and Daihai Lake as adsorbent, the release experiments of phosphorus and silicate from sediments were carried out and the form distribution characters of phosphorus and silicate were studied after release using sequential extraction methods in this work. The results showed that the release characteristics of phosphorus and silicate can be expressed by the Elovich equation. In the first 20 min, there about 75% of adsorbed phosphorus were released into the overlyi... |
| Keywords: | release behavior form distribution phosphorus silicate sediment |
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