南京师大学报（自然科学版）2012，Vol.35Issue(1)：95-103,9.
水体中有色可溶性有机物的测量及其变化
The Measurement and Changes of Chromophoric Dissolved Organic Matter in Water
摘要
Abstract
Chromophoric dissolved organic matter (CDOM) is one of the major constituents in water color remote sensing. It is significantly important in the research Held such as aquatic ecosystem, optical remote sensing, organic pollution and global carbon circulation, and becoming a hot research topic. This paper systematically summed up the measurement and calculation methods of CDOM, measurement problems, spatial and temporal changes of CDOM and its correlative factors, so as to provide a reference for related work. Presently, routine measurement and calculation methods of CDOM include spectral absorption coefficient and fluorescence spectrum method, CDOM concentration is expressed by absorption coefficient at 355 nm,375 nm or 440 nm in the former, and expressed by fluorescence intensity at excitation wavelength between 200 nm and 435 nm, and emission wavelength between 2S0 nm and 600 nm in the latter. CDOM absorption coefficient in water varying with time, region, depth or water body type, and its value is correlated with factors such as salinity, chlorophylla concentration, DOM (dissolved organic matter) , suspended sediment concentration and others.关键词
有色可溶性有机物/吸光度/水色/碳循环Key words
chromophoric dissolved organic matter/absorbency/water color/carbon circulation分类
资源环境引用本文复制引用
付宇,韦玉春,周宇..水体中有色可溶性有机物的测量及其变化[J].南京师大学报（自然科学版）,2012,35(1):95-103,9.基金项目
江苏省普通高校自然科学研究计划资助(09KJA420001)、国家自然科学基金(40771152). （09KJA420001）
