[Distribution of suspended matter concentration in the Changjiang Estuary and adjacent area after the first-stage storage of the Three Gorges Project].
The first-stage storage of the Three Gorges Project started on the 1st June, 2003 and ended on the 10th June, 2003. In order to investigate the influences of the Three Gorges Project on the Changjiang Estuary and adjacent area environment, a cruise was carried out from the 15th June, 2003 to the 25th June, 2003 to synthetically study the environment. Suspended matter concentrations (SMC) in different water layers at different sites were calculated and distributions of SMC were discussed combining with salinity and temperature of water based on recovered data. In results, SMC increase from surface to bottom in Changjiang Estuary and adjacent area. Suspended matters are enriched in the water over the river mouth bar and alongshore area which are located at the west of 123 degrees E. Compared to that before the storage, SMC are reduced obviously in the Changjiang course and south branch after the storage. For example, at the Xuliujing, SMC are reduced from 400 - 500 mg/L to 60.2 mg/L, and in the south branch, from 445 mg/L to 148 mg/L. In other areas, SMC do not show a significant change that they are both less than 10 mg/L in the surface player and 100 mg/L in bottom player. Generally, the distributed patterns of SMC in the investigation area after the storage are still similar to that before the storage.
Zhang
Huai-Jing
HJ
College of Marine Geosciences, Ocean University of China, Qingdao 266100, China. zhanghuaijing@hotmail.com
Zhai
Shi-Kui
SK
Fan
De-Jiang
DJ
Guo
Zhi-Gang
ZG
Yu
Zeng-Hui
ZH
Cao
Li-Hua
LH
Yang
Rong-Min
RM
Zhang
Xiao-Dong
XD
D002681:China; D004784:Environmental Monitoring / Q000379:methods*; D005618:Fresh Water / Q000032:analysis*; D019015:Geologic Sediments / Q000032:analysis; D052638:Particulate Matter / Q000032:analysis*; D045483:Rivers; D012623:Seawater / Q000032:analysis*; D014872:Water Movements; D014873:Water Pollutants / Q000032:analysis*
D052638:Particulate Matter; D014873:Water Pollutants