首页 | 本学科首页   官方微博 | 高级检索  
     检索      

长江中下游湖泊沉积物氮磷形态与释放风险关系
引用本文:张路,范成新,王建军,陈宇炜,姜加虎.长江中下游湖泊沉积物氮磷形态与释放风险关系[J].湖泊科学,2008,20(3):263-270.
作者姓名:张路  范成新  王建军  陈宇炜  姜加虎
作者单位:中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室,南京,210008
基金项目:科技部基础性工作项目 , 国家自然科学基金
摘    要:运用聚类分析、主成分分析和相关矩阵的统计分析手段,对长江中下游湖群共18个湖泊的沉积物氮磷释放风险以及湖泊沉积物、间隙水和上覆水中氮磷形态以及其他相关地球化学参数进行分析。草型和藻型湖泊的环境差异是造成氮磷释放风险的主要原因。氮磷释放风险与铁磷、藻类可利用磷、总氮、总磷、上覆水氮磷含量、间隙水氮含量、孔隙度和有机质含量间的关系最为密切。决定磷酸盐释放风险的主要形态磷是藻类可利用磷和铁磷,其他形态磷或者含量较低或者不易被转化释放,对磷酸盐释放风险影响较小。有机磷含量对磷的释放风险没有直接决定作用,但它与有机质含量间呈显著正相关。

关 键 词:沉积物  氮磷  营养盐形态  释放风险  湖泊
收稿时间:2006/10/26 0:00:00
修稿时间:2006年10月26

Nitrogen and phosphorus forms and release risks of lake sediments from the middle and lower reaches of the Yangtze River
ZHANG Lu,FAN Cheng-xin,WANG Jian-jun,CHEN Yu-wei and JIANG Jia-hu.Nitrogen and phosphorus forms and release risks of lake sediments from the middle and lower reaches of the Yangtze River[J].Journal of Lake Science,2008,20(3):263-270.
Authors:ZHANG Lu  FAN Cheng-xin  WANG Jian-jun  CHEN Yu-wei and JIANG Jia-hu
Institution:State Key Laboratory of Lake Science and Environment;Nanjing Institute of Geography and Limnology;Chinese Academy of Sciences;Nanjing 210008;P.R.China
Abstract:Cluster analysis, principal component analysis and correlation matrix analysis were used to analysis the nitrogen and phosphorus release risks from sediments in 18 lakes located in the middle and lower reaches of the Yangtze River, as well as the nitrogen and phosphorus forms and related geochemical parameters from sediments, pore waters and overlying waters. The ecological difference of macrophyte and algae dominated lakes was the main reason of the difference of nitrogen and phosphorus release. The releas...
Keywords:Sediment  nitrogen and phosphorus  nutrients form  release risk  lake  
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《湖泊科学》浏览原始摘要信息
点击此处可从《湖泊科学》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号