The ancient capital Luoyang site in today s Henan Province has recently discovered over 80 meters of water channels dating back to the Wei and Jin dynasties (220-420).
It indicates the mature techniques of building water conservancy facilities and the dynasties capability of water resource utilization and environmental upgrade back then.
Two significant archaeological discoveries in Central China s Henan Province were revealed on Sunday at the 2022 Henan Archaeological Work Achievement Exchange Conference, according to the provincial cultural heritage administration.