Current issue: 53(3)
Under compilation: 53(4)
Silva Fennica Issue 69 includes presentations held in 1948-1950 in the fourth professional development courses, arranged for foresters working in the Forest Service. The presentations focus on practical issues in forest management and administration, especially in regional level. The education was arranged by Forest Service.
This presentation describes the history and present stage of forest drainage in Northern Finland. The first peatlands were drained in the area in 1909. About 6% of the 600,000 hectares of peatlands suitable for drainage was drained at the time in Perä-Pohjola. The areas to be drained are characteristically very large.