The water samples of the surface layer sampled in the lower Yangtze River from June 2003 to July 2005 were used for determination of dissolved organic carbon (DOC) and particulate organic carbon (POC).

13% of total dissolved organic carbon (DOC).

Dissolved organic carbonranged from 1.

Research on dynamic of DOC and COC in the prawn ecosystem;

DIURNAL DYNAMICS OF DOC AND POC IN SHRIMP POND ECOSYSTEMS;

Preliminary Studies of DOC in Seawater near the Ryukyu sland;

Determination methods of dissolved organic carbon(DOC) in seawater have been reviewed in this paper.

In this method,the change in DOC and BDOC of inflow and effluent was used to evaluate the distribution and to determinate the effect of the different ozone doses on the adsorption and biodegradation in BAC.

The origin and component of soil organic carbon (SOC) change with shift of forest-crop ecosystem, but the results aren’t identical and there are few reports about soil dissolved organic carbon (DOC) during this process.

Although dissolved organic carbon(DOC)and nitrogen(DON)in soil have little proportion in the total carbon and nitrogen,they are the most important and active parts of soil organic matter(SOC).

Influencing Factors and Ecological Effects of Dissolved Organic Carbon in Soil;

Emission spectra,spatial distribution of fluorescence,relations between chromophoric dissolved organic matter(CDOM) fluorescence and absorption coefficient,dissolved organic carbon(DOC) concentration were studied based on the measurements from December 2004 to March 2005 in Lake Taihu.

The seasonal dynamics and regional distribution of light attenuation, t he spectral distribution of attenuation coefficients, and the relative roles of total suspended solid (SS), dissolved organic carbon (DOC), chlorophyll a (Chla) as light attenuators were assessed.