The Jungsan County Forestry Management Station in South Phyongan Province is building up the foundation for production of saplings.
Last year alone, it built a tissue culture lab and high-pressure sterilizing room in the tree nursery and thus produced over 20 000 Sangwon poplar saplings through tissue culture.
It also built mushroom cultivation and fish breeding grounds and is using waste substrates and water in sapling production.
It transformed AC motors into DC ones to ensure the operation of all facilities with the help of electricity generated by solar energy.
The tree nursery is now in a position to produce saplings two times a year, irrespective of seasons.