What is the land of geomantic omen with jade belt around its waist?

The jade belt around the waist means that the river or road is round, semi-circular or arc around the building. Feng Shui is also called "bringing water".

Because, like the belts of ancient senior officials, they are intertwined with buildings, so that people living there are either expensive or rich, and their careers are successful and their wealth is prosperous.