From Wikipedia:
An acre of empress trees can absorb 103 metric tons of
carbon dioxide a year. Once the trees reach maturity, farmers harvest their
wood for use in houses or musical instruments.[11]
The characteristic large size of the young growth is exploited by gardeners: by pollarding the tree and ensuring there is vigorous new growth every year, massive leaves are produced (up to 23in/60 cm across). These are popular in the modern style of
gardening which uses large-foliaged and "architectural" plants........
This seems like a great tree to add into a food forest for chop n drop if you want to add carbon and shade.