Alkali drainage ditch, alkali drainage method in ditches in Alar Reclamation Area, how to drain alkali in alkali drainage ditch

Alkali drainage ditches are ditches excavated by the regiment in or around saline-alkali land to drain alkali. The depth is generally more than 1 meter, and the deepest can reach more than 2-3 meters. Improve the soil and transform saline-alkali land by digging alkali drainage ditches.

In the beginning of every spring, a large amount of water is poured into the farmland containing saline and alkali to dilute the saline and alkali in the soil to achieve the purpose of discharging salt and suppressing alkali. The water used to dilute the saline-alkali in these farmlands must have a place to go, so a series of alkali drainage channels were formed in this way.