标签：Scale Effective Soil fish scale soil runoff pit pits
What is fish-scale pits?
- Fish scales in a semicircular, crescent-shaped pit
- It is built on a hillside and can often be seen on the slope of the tunnel entrance
- These pits are staggered to store water and soil
- The pit dam is high on both sides and low in the middle
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How the fish-scale pits work?
- The rainfall intensity is small, the duration is short, the fish scale pit will not be full, and the water and soil can be intercepted in sections and sections
- The rainfall intensity is high, lasts for a long time, and the fish scale pit overflows, but because the middle of the ridge of the fish scale pit is high and the two sides are low, so as to ensure that the runoff is not straight and along one direction when flowing down on the slope surface, so as to avoid the concentration of runoff, and the runoff on the slope surface is regulated by the rows of fish scale pits, which weakens the scouring ability of the runoff
- The water and soil conditions in the fish scale pit are good, and planting trees is conducive to maintaining the water and soil
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What's fish-scale pits' impacts?
- Interception of surface runoff
- Water and soil and fertilizer retention
- Mitigating soil erosion
- Increase vegetation cover
- 【【超清】这是你记忆中的黄土高原吗？-哔哩哔哩】 https://b23.tv/kiC7L43 (Since it was difficult to insert the content of my screen recording, I had to put in the entire video link)
标签：Scale,
Effective,
Soil,
fish,
scale,
soil,
runoff,
pit,
pits
From： https://www.cnblogs.com/zhh1216/p/17823951.html