conifers at the Krameterhof

in case the other one was too nutty, a more conventional question:

there's been a long, unresolved discussion on permies on the reservations regarding the predominant use of conifers (pine, spruce, fir, cedar, etc.) in hugel-style earthworks due to their various alleopathic, acidic, anti-fungal & microbial properties. however, as i understand it, the Krameterhof was at one time a monoculture of conifers (fir, i believe, ja?). if this is correct, then were the conifers that were taken down used as the dominant material in any of the original earthworks that Sepp constructed?

if so, then was there any observation of any of the above properties and if so, how long did the effects occur? was there a remedy that was successful in mitigating them? was there a better alternative use for the conifer wood that was discovered in retrospect?

any thoughts to share would be very helpful to those who face a similar situation in rehabilitating a conifer desert on their land.
vielen Dank.

The Krameterhof was once a spruce mono-culture. A storm blew down much of the spruce and Sepp used this blow down for his original earthworks. His original earthworks were not hugelbeds but terraces, he used the spruce in he construction of his terraces. Terraces dominate the landscape of the Krameterhof. After construction they were seeded with lots of legumes and other soil enhancing plants. In 8-10 years he had a helped create a very good soil on the terraces. This was the product of lots of green manure crops and the design of the terraces.

Judith, Johnny, Zach, and Chad - Team Holzer AgroEcology