Characterization of Mixing Processes in the Confluence Zone between the Three Gorges Reservoir Mainstream and the Daning River Using Stable Isotope Analysis

2015 ◽  
Vol 50 (18) ◽  
pp. 9907-9914 ◽  
Author(s):  
Yunyun Zhao ◽  
Binghui Zheng ◽  
Lijing Wang ◽  
Yanwen Qin ◽  
Hong Li ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Stable Isotope Analysis ◽  
Three Gorges Reservoir ◽  
Isotope Analysis ◽  
Three Gorges ◽  
Mixing Processes ◽  
The Three Gorges Reservoir ◽  
The Three Gorges ◽  
Confluence Zone

scholarly journals Stable Isotope Analysis Reveals the Importance of Riparian Resources as Carbon Subsidies for Fish Species in the Daning River, a Tributary of the Three Gorges Reservoir, China

Water ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1233
Author(s):  
Huatang Deng ◽  
Yun Li ◽  
Mingdian Liu ◽  
Xinbin Duan ◽  
Shaoping Liu ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Stable Isotope Analysis ◽  
Three Gorges Reservoir ◽  
Isotope Analysis ◽  
Landscape Scale ◽  
C3 Plants ◽  
Three Gorges ◽  
The Three Gorges Reservoir ◽  
Heterogeneous Habitats ◽  
The Three Gorges

The patterns of carbon flow in large rivers influenced by dams are still not well known. We hypothesized that spatial variation in fish assimilation of basal production sources would be affected by heterogeneity of landscape-scale hydrology within a watershed due to the impoundment. We used stable isotope analysis and Bayesian mixing models to estimate relative contributions of basal production sources to fish consumers in a tributary of the Three Gorges Reservoir (TGR) with remarkably heterogeneous habitats between the upper and lower reaches. Model estimates indicated that riparian C3 plants were the main basal food source irrespective of reaches or feeding groups. Autochthonous algae carbon also appeared to be important as secondary carbon sources. However, the major contributive aquatic algae in the upstream were benthic algae while planktonic algae were important in the downstream, and this difference was related to their distinct hydrological characteristics. The contribution from C4 plants was comparatively less important to all fish consumers. Our results highlighted the significance of the riparian C3 carbon source to fish consumers in the TGR tributary and that the difference in landscape-scale characteristics was not enough to influence the pattern, which may be attributed to abundant standing stock of the riparian plants as well as hydrologic regimes in this river.

scholarly journals Heat budget contribute rate in the Three Gorges Reservoir tributary bay between mainstream and tributary using stable isotope analysis

2018 ◽  
Vol 19 (2) ◽  
pp. 553-564 ◽  
Author(s):  
Yao Cheng ◽  
Yuchun Wang ◽  
Huaidong Zhou ◽  
Mingming Hu ◽  
Rong Jiang ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Three Gorges Reservoir ◽  
Heat Budget ◽  
Meteorological Data ◽  
Isotope Analysis ◽  
Three Gorges ◽  
The Three Gorges Reservoir ◽  
The Three Gorges ◽  
Using Data ◽  
A Minor

Abstract Understanding the interaction processes between the mainstream and its tributaries and detailing the rates of contribution of water and heat from two different water bodies in the tributary bay are essential for water management in the Three Gorges Reservoir (TGR). The stable isotope ratios of hydrogen (δD) and oxygen (δ18O) were applied to explore the interactions between the TGR mainstream and the tributary, Zhuyi River. A heat budget of the TGR tributary bay was constructed for the year 2014 using data for water temperature, meteorological data and water mixing ratio. The results showed that approximately 91% of the water in the tributary bay was from the TGR mainstream. And the heat budget reveals that the tributary bay net heat flux is dominated by the mainstream advective heat, and the average contribution rate is 87% during the whole year, while the tributary advective heat and atmosphere make a minor contribution to the tributary bay heat budget.

Isotope analysis of the nutrient supply in Xiangxi Bay of the Three Gorges Reservoir

2015 ◽  
Vol 77 ◽  
pp. 65-73 ◽  
Author(s):  
Liu Yang ◽  
Defu Liu ◽  
Yuling Huang ◽  
Zhengjian Yang ◽  
Daobin Ji ◽  
...  
Keyword(s):  
Three Gorges Reservoir ◽  
Isotope Analysis ◽  
Nutrient Supply ◽  
Three Gorges ◽  
The Three Gorges Reservoir ◽  
The Three Gorges ◽  
Xiangxi Bay

Seasonal variation and longitudinal distribution characters of cladocerans in the Three Gorges Reservoir

2009 ◽  
Vol 17 (5) ◽  
pp. 512
Author(s):  
Wu Hui-xian ◽  
Yao Jian-liang ◽  
Liu Yan ◽  
Xue Jun-zeng ◽  
Cai Qing-hua ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
Three Gorges Reservoir ◽  
Longitudinal Distribution ◽  
Three Gorges ◽  
The Three Gorges Reservoir ◽  
The Three Gorges
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