Evaluation of the Yangtze River Littoral Wetland Soil with Total Organic Carbon

2014 ◽  
Vol 989-994 ◽  
pp. 1189-1191
Author(s):  
Zhi Wen Luo ◽  
Xing Wang

The Three Gorges Reservoir as an important hydraulic project of Yangtze River, the environmental issues attracts worldwide attention, and the environmental problems of littoral wetlands of the Three Gorges Reservoir are more important aspect. Total organic carbon (TOC) content by potassium dichromate oxidation spectrophotometry of downstream the Three Gorges Reservoir in Fengjie, Kaixian, Wushan, Fengdu, Daning estuary in the five regions in soil were determined. Then the organic carbon content of the soil classification comparison, analysis of the causes of soil organic carbon content of the various main reasons for differences, soil classification: the same region, same altitude, different species; the same area, the same species, different altitudes. Finally, by calculating the content of these five regions of the average total organic carbon is about 10.43g/kg.

2014 ◽  
Vol 501-504 ◽  
pp. 2001-2006
Author(s):  
Ya Liu ◽  
Li Zheng ◽  
Cheng Tao Huang ◽  
Zhao Biao Huang ◽  
Lin Liu

After impoundment of the Three Gorges Reservoir, Jingjiang reach, in the middle of the Yangtze River, has gradually shown a series of atypical fluvial features, adversely affecting the maintenance of waterways. Citing the Laijiapu Waterway, a meandering segment in the lower Jingjiang for example, this paper compared the fluvial features of the channel before and after the impoundment, summed up its navigation-obstructing features, and proposed guarding the point bar on the convex bank and channel bar in the widening section as a key to maintaining the stability of the navigation channels.


Sign in / Sign up

Export Citation Format

Share Document