Changjiang River

Zhang, C.S., Wang, L.J., Zhang, S. 1995. Metal speciation in sediments and suspended matter in the middle-lower reaches of the Changjiang River. China Environmental Science, 15(5), 342-347 (in Chinese). 

Aller, J. Y., and R. C. Aller. 1986. "General characteristics of benthic faunas on the Amazon inner continental shelf with comparison to the shelf off the Changjiang River, East China Sea." Continental Shelf Research 6 291-310. 

DeMaster, D. J. and C. A. Nittrouer. 1983. "Uptake, dissolution, and accumulation of silica near the mouth of the Changjiang River." In Sedimentation on the Continental Shelf with Special Reference to the East China Sea, eds. Q. Jin, and J. D. Milliman (China Ocean Press, Beijing), pp. 215-219. 

Chen, Y.-L., Lu, H.-B., Shiah, F.-K., Gong, G. C., Liu, K.-K., andKanda,. (1999). New production and f-ratio on the continental shelf of the East China Sea Comparisons between nitrate inputs from the subsurface Kuroshio Current and the Changjiang River. Estuar. Coast. Shelf Sd. 48, 59—IS. 

Chen, C., Zhu, J., Beardsley, R., and Franks, P. (2003). Physical-biological sources for dense algal blooms near the Changjiang River. Geophys. Res. Lett. 30, doi 10.1029/2002GL016391. 

MiUiman J. D., Quinchun X., and Zuosheng Y. (1984) Transfer of particulate organic carbon and nitrogen from the Changjiang River to the ocean. Am. J. Sci. 284, 824-834. 

All we know about the beginnings of Taiqing tradition, therefore, is that it originated in present-day eastern Anhui around 200 CE, and was soon transmitted to the nearby region across the Changjiang River. Apparently... 

Nearly 30 rivers run into the Yellow Sea, mainly including the Aprock River, the Han River, and the Keum River, and the Yellow Sea receives a vast amount of fresh water from both Chinese and Korean rivers, such as the Changjiang River, Huanghe River, Yalujiang River, Daliaohe River, and Haihe River of China and the Han River, Kum River, and Yeongsan River of Korea. 

The Changjiang River-derived sediments are mostly confined to the south and seasonally transported offshore by a plume event. The east of the Changjiang River mouth is covered with sandy sediments, either relict sands of the continental shelf or an active offshore tidal sand sheet. 

Okinawa Trough, the Ryukyu island arc, and the Rjmkyu trench, it makes up another Trench-Arc-Basin system in the West Pacific Ocean, which links northwards with the Japanese island arc and connects southwards with the Taiwan-Philippine island arc. The northwest shelf cormects with the Yellow Sea and between them is the Changjiang River delta, with a water depth of about 50 100 m. 

The SST of ECS ranges from 27 to 29 °C in summer, but some cold eddies were found off northeast Taiwan and to the south of the mouth of the Changjiang River. SST anomalies at the center of these eddies were about 2 5 °C. The strongest front usually occurs in May each year and its temperature gradient is about 5 6 °C over a cross-shelf distance of 30 nautical miles. The Yellow Sea mixed with cold water also provides a contrast from China Coastal waters shoreward of the 50 m isobath, the cross-shore temperature gradient is about 6 8 °C over 30 nautical miles. 

Tides can also locally affect surface sediment distribution. Tides are particularly dominant in the East China Sea of the mouth of the Changjiang River and off southwestern Korea. In both instances tidal cmrents are sufficiently strong (l 2 knot(s)) to erode and transport sediments. The intrusion of the Taiwan Warm Water (TWW) between the Changjiang Coastal Water (CJCW) and the Jiangsu Coastal Water (JCW) results in a seaward transition from turbid (CJCW) to clear (TWW) to turbid (JCW) waters east of the Changjiang River Estuary. As a result, Changjiang River sediments tend to be transported to the south by the CJCW, while the sediments to the east of the TWW are predominantly Huanghe River sediments transported south by the JCW. 

The contents of silt and sand in the sin-face sediments of the ECS outer shelf are over 80%, mainly including fine sand, medial-fine sand and fine-medial sand. Among them, the medial-find sand sediment covers larger areas of the ECS outer shelf, whereas fine-medial and fine sand sediments present only in small areas, mainly concentrating on the Changjiang River Estuary and the southeast of outer shelf. 

The study of the phosphorus adsorption in the Changjiang River Estuary sediments showed that the sediments were buffers to phosphate and the balance time of phosphorus adsorption (desorption) was about 6 h. The saturated adsorption quantity of phosphorus was about 600 pg/g and the saturated desorption was about 126.37 pg/g. The apparent adsorption heat of fine sediments (AH) was 47.59 kJ/mol. The adsorption of phosphate was in accordance with Freundlich s isothermal equilibrium and it was a heat absorption reaction. The contents of sand and mud in sediments had some influence on adsorption and the adsorption would decrease with the increase in sand or mud content. In general, the increase in pH favors adsorption. Moreover, the increase in salinity does not favor adsorption but favors desorption. The research shows that the release of phosphorus in the sediments of the Changjiang River Estuary... 

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