organic sediment
1.CHARACTERISTICS OF ORGANIC MATTER IN SEDIMENT CORE DC-2 FROM THE EAST CHINA SEA
5.The water and the sediment in prawn pond which were both in the field and the laboratory were studied in this paper. The results were obtained that organic matter, sulfid and Eh in pond sediment were changed with depth and with the time of prawn apu-culture. The sediment were polluted by organic matters released from excess foods and ex-cerements of prawn.

