Costs of basic methods of forest landmaintenance in protective zones of high-voltage power lines in the Czech Republic
L. Šišákhttps://doi.org/10.17221/75/2009-JFSCitation:Šišák L. (2010): Costs of basic methods of forest landmaintenance in protective zones of high-voltage power lines in the Czech Republic. J. For. Sci., 56: 35-41.
: The paper describes the basic potential methods and their costs of maintenance of forest lands in protective zones under high-voltage power lines (HVPL) 400 kV and 220 kV. In the present situation and with available information and data, it was possible to accomplish the average cost calculations for the whole area of the Czech Republic. The paper analyses the following mechanical and chemical methods of maintenance of forest lands: full-area scrub clearing with power saw (PS), selective individual scattered clearing of trees with PS, full-area scrub clearing by milling, full-area scrub clearing by the application of herbicides and arboricides, selective individual scrub clearing of individual trees by cutting followed by spray treatment with arboricides. The maintenance of forest lands in zones of HVPL (scrub clearing) by milling belongs to the economically most convenient mechanical methods, for example when removing 3,000 trees.ha–1, the cost of this option is 20,000–23,000 CZK.ha–1ha in a period of 3-year periodic frequency, while the most expensive method is selective individual scrub clearing of scattered individual plants with PS at costs of around 84,000 CZK.ha–1.Keywords:Czech Republic; forest lands; high-voltage power lines; maintenance costs