I live in Fujian Province, China. The climate is sub-tropical monsoon. I want to build a 3 meter diameter raised bed. Originally, I was planning to build a geodesic dome greenhouse, but I think the summers are too hot for this.
Instead, I want to build a 6 meter diameter earthbag round wall (3 meters high) around the garden for wind protection and privacy. The style would be similar to the Chinese Hakka houses. I don't want to build an enclosed roof, only a roof to cover the walls and 1.5 meters inside the garden round house.
See picture of round hakka houses here
https://en.wikipedia.org/wiki/Hakka_walled_village
I also got inspiration from the Forestier Underground Gardens
http://www.undergroundgardens.com/
My question is, how can I protect the plants and soil from the heavy rains which occur during rainy season?
Dustin
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