【摘 要】
：
Yundang Lagoon is a typical highly polluted coastal shallow wetland located in the southeast of China.Dissolved organic matter (DOM) samples collected from Yundang Lagoon in spring of 2008 were charac
【机 构】
：
State Key Laboratory of Marine Environmental Sci ence(Xiamen University), College of Oceanography an
论文部分内容阅读
Yundang Lagoon is a typical highly polluted coastal shallow wetland located in the southeast of China.Dissolved organic matter (DOM) samples collected from Yundang Lagoon in spring of 2008 were characterized successfully by fluorescence excitation emission matrix spectroscopy (EEMs) and parallel factor analysis (PARAFAC).PARAFAC decomposed the fluorescence matrices into five independent components,including two humic-like components,two protein-like components and one xenobiotic-like component.Sewage discharge was the main source of all fluorescent components,while in situ biological activity provided another source of protein-like components.The negative correlation between the scores of individual fluorescent components and salinity showed that sewage DOM in the lagoon was obviously diluted by the input of seawater from outer bay.The large variation of the intercept of the correlation line indicated the source intensity of sewage input changes with time and this will have strong influence on the DOM dynamics within the lagoon.It is possible to trace DOC concentration via fluorescent components due to the linear relationship between the protein-like components and DOC.This study proves that the EEMs-PARAFAC is an important tool for assessing the dynamics of DOM in Yundang Lagoon and similar polluted coastal waters.
其他文献
In this paper,Using RS/GIS technology and field monitoring methods,the satellite images of Baiyangdian basin from land resource satellite Landsat7ETM in May,2005 was operated by vector analysis,and th
Water pollution and eutrophication of lakes is getting daily serious,affecting not only water resources utilization of lakes for human but also the healthy development of the whole eco-environment sys
The innovative product,Phoslock,was developed by CSIRO,Australia,for soluble phosphorus removal from eutrophicat water body.With the achievement of good efficiency in soluble phosphorus removal from w
Electrolyte species and concentration have an effective influence on the size distribution of soil particles.Five electrolytes as NaCl,CaCl2,MgCl2,MgSO4 and seawater (a mixture of various electrolytes
Degradation of water quality is the major health concern for lakes and reservoirs in the regions of north china as a result of highly diverse non-point source emissions caused by human activities.For
To evaluate the heavy metal pollution status of Chagan Lake,the total concentrations of Hg,Pb,Cu,Zn,Cd,Cr,Ni and Fe in 11 species of fish were investigated.The concentrations of Hg,Pb,Cd,Cr,Ni,Cu,Zn,F
Ecosystem is temporally and spatially in a higher scale.resulting in difficulty and delay to be integrated.Global issues on natural resource management and conservatioa ecology have brought the agenda
The purpose of the review was to identify opportunities to incorporate the best International practice into the environmental management and treatment of West Tai Lake.The study identified the need fo
Lake Dianchi is a large lake which is listed in the "Three Important Lakes Restoration Act in China".The water quality has deteriorated from class Ⅱ in the 1970 s to class Ⅴ today,with an attendant in
It is common understanding lake shrinkage and laky salinization,which bring the degeneration of ecosystem in arid region valley.The inland lakes is shrinking rapidly mainly because of the diversion of