What is the effectiveness of ecological hydration in the spring of Yongding River in 2022?Click to enter →
Author:Chinese water conservancy Time:2022.07.22
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Ministry of Water Resources
In 2022, Yongding River's spring ecological hydration effectiveness
Make technical assessment
The results show
Yongding River Spring Ecological Moisturizing
Remarkable results
Pulse leakage of water to speed up the shaping of the river slot
By carrying out large flow leakage water
Especially two pulse leakage tests
And supplemented by artificial river channels
Rinse
Reshape the river slot
Significant effect
in
Beijing section main slot
Stable part of the width of the river
Broaden from 10-20 meters to 160 meters
The main slot of Langfang section gradually appears
River overcurrent ability increases
Tianjin section dredging 19 kilometers of river channel
And clear the blocking point
Overcurrent
From 10 cubic meters per second
Increase to about 60 cubic meters per second
Monitoring of runoff performance is effective
During the entire line of water
Continue tracking moisture progress
Find the law of hydration
Evaluate hydration effect
Official Hall -Houshawo section seepage flow
About 35 cubic meters per second
Infiltration flow shows a decrease year by year
Further verify the preliminary hydration effect
The groundwater level rises obviously
Compare with ecological hydration
Chenjiazhuang to Lugouqiao River section
3 kilometers along the line in the mainland water level
Average rising 1.94 meters
10 kilometers in the mainland water level
Rise 1.20 meters average
The maximum rising value is 7.14 meters
Ecological environment recovery has achieved remarkable results
During the entire line of water
Yongdinghe Hall Reservoir to Qujiadian River Section
Ecological water surface area is about 26 square kilometers
It increases by nearly 20% compared to the entire line of water
Some river sections increase 45%
Dry flow water quality overall stable
Some river sections of water quality improvement
Water quality category below the reservoir of the end of the water at the end of the water
The monitoring section of Class Ⅱ -Ⅲ accounts for 71.4%
Biological population and quantity are also increasing
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