scholarly journals Joint Dependence Between River Water Temperature, Air Temperature, and Discharge in the Yangtze River: The Role of the Three Gorges Dam

2018 ◽  
Vol 123 (21) ◽  
pp. 11,938-11,951 ◽  
Author(s):  
Zhiyong Liu ◽  
Xiaohong Chen ◽  
Feng Liu ◽  
Kairong Lin ◽  
Yanhu He ◽  
...  
Keyword(s):  
Water Temperature ◽  
River Water ◽  
Air Temperature ◽  
Yangtze River ◽  
Three Gorges ◽  
The Yangtze River ◽  
The Three Gorges ◽  
River Water Temperature ◽  
The Three Gorges Dam

Longitudinal recovery gradients of drifting larval fish assemblages in the middle reach of the Yangtze River: impact of the Three Gorges Dam and conservation implementation

2019 ◽  
Vol 76 (12) ◽  
pp. 2256-2267 ◽  
Author(s):  
Yiqing Song ◽  
Fei Cheng ◽  
Peng Ren ◽  
Zhen Wang ◽  
Songguang Xie
Keyword(s):  
Water Temperature ◽  
Yangtze River ◽  
Fish Assemblages ◽  
Larval Fish ◽  
Three Gorges ◽  
The Yangtze River ◽  
River Section ◽  
Middle Reach ◽  
The Three Gorges ◽  
The Three Gorges Dam

Drifting larval fish assemblages were investigated at three sections in the middle reach of the Yangtze River downstream of the Three Gorges Dam to reveal recovery gradients and to identify the major environmental factors influencing their temporal and spatial patterns. Larval fish in the river section closest to the dam showed lower abundance, later occurrence, narrower temporal niche breadth, and more pairs of dominant species with high niche overlap than those further from the dam. Water temperature, transparency, and discharge significantly influenced the larval fish assemblages. They showed longitudinal gradients of increased water temperature, decreased transparency, and increased discharge in a downstream direction. Our results suggested that hypolimnetic and clean water discharge from the dam heavily impacted larval fish assemblage in the river section near the dam. With an increased distance to the dam and the input of some major tributaries, this impact was gradually buffered, thus forming the longitudinal recovery gradients. We suggest that priority for conservation should shift from river sections closer to the dam to those further from the dam.

How polluted is the Yangtze river? Water quality downstream from the Three Gorges Dam

2008 ◽  
Vol 402 (2-3) ◽  
pp. 232-247 ◽  
Author(s):  
Beat Müller ◽  
Michael Berg ◽  
Zhi Ping Yao ◽  
Xian Feng Zhang ◽  
Ding Wang ◽  
...  
Keyword(s):  
Water Quality ◽  
River Water ◽  
Yangtze River ◽  
River Water Quality ◽  
Three Gorges Dam ◽  
Three Gorges ◽  
The Yangtze River ◽  
The Three Gorges ◽  
The Three Gorges Dam

scholarly journals Response of vegetation to submergence along Jingjiang Reach of the Yangtze River

PLoS ONE ◽  
2021 ◽  
Vol 16 (5) ◽  
pp. e0251015
Author(s):  
Guoliang Zhu ◽  
Yitian Li ◽  
Zhaohua Sun ◽  
Shinjiro Kanae
Keyword(s):  
Yangtze River ◽  
Vegetation Index ◽  
Normalized Difference Vegetation Index ◽  
High Elevation ◽  
Three Gorges Dam ◽  
Vegetation Coverage ◽  
Three Gorges ◽  
The Yangtze River ◽  
The Three Gorges ◽  
The Three Gorges Dam

This work explores the changes in vegetation coverage and submergence time of floodplains along the middle and lower reaches of the Yangtze River (i.e., the Jingjiang River) and the relations between them. As the Three Gorges Dam has been operating for more than 10 years, the original vegetative environment has been greatly altered in this region. The two main aspects of these changes were discovered by analyzing year-end image data from remote sensing satellites using a dimidiate pixel model, based on the normalized difference vegetation index, and by calculating water level and topographic data over a distance of 360 km from 2003–2015. Given that the channels had adjusted laterally, thus exhibiting deeper and broader geometries due to the Three Gorges Dam, 11 floodplains were classified into three groups with distinctive features. The evidence shows that, the floodplains with high elevation have formed steady vegetation areas and could hardly be affected by runoff and usually occupied by humans. The low elevation group has not met the minimal threshold of submerging time for vegetation growth, and no plants were observed so far. Based on the facts summed up from the floodplains with variable elevation, days needed to spot vegetation ranges from 70 to 120 days which happened typically near 2006 and between 2008 and 2010, respectively, and a negative correlation was detected between submergence time and vegetation coverage within a certain range. Thus, floods optimized by the Three Gorges Dam have directly influenced plant growth in the floodplains and may also affect our ability to manage certain types of large floods. Our conclusions may provide a basis for establishing flood criteria to manage the floodplain vegetation and evaluating possible increases in resistance caused by high-flow flooding when these floodplains are submerged.

scholarly journals The impact of the Three Gorges Dam on summer streamflow in the Yangtze River Basin

2019 ◽  
Vol 34 (3) ◽  
pp. 705-717
Author(s):  
Zhenkuan Su ◽  
Michelle Ho ◽  
Zhenchun Hao ◽  
Upmanu Lall ◽  
Xun Sun ◽  
...  
Keyword(s):  
River Basin ◽  
Yangtze River ◽  
Yangtze River Basin ◽  
Three Gorges Dam ◽  
Three Gorges ◽  
The Yangtze River ◽  
The Three Gorges ◽  
The Yangtze River Basin ◽  
The Impact ◽  
The Three Gorges Dam

scholarly journals Impact of the Three Gorges Dam on the Hydrology and Ecology of the Yangtze River

Water ◽  
2016 ◽  
Vol 8 (12) ◽  
pp. 590 ◽  
Author(s):  
Xiao Zhang ◽  
Zengchuan Dong ◽  
Hoshin Gupta ◽  
Guangdong Wu ◽  
Dayong Li
Keyword(s):  
Yangtze River ◽  
Three Gorges Dam ◽  
Three Gorges ◽  
The Yangtze River ◽  
The Three Gorges ◽  
The Three Gorges Dam
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