Journal of Environmental Biology
pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP
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Abstract - Issue Apr Supplement 2007, 28 (2) Back
Harvesting impact on herbaceous understory, forest floor and top soil properties on skid road in a beech (Fagus orientalis Lipsky) stand
Murat Demir*1, E. Makineci2
1Department of Forest Construction and Transportation, Faculty of
2Department of Soil Science and Ecology, Faculty of Forestry,
3Department of Forest Yield and Biometry, Faculty of Forestry,
(Received: August 10, 2005 ; Revised received: November 28, 2005 ; Accepted: December 30, 2005)
Abstract: In this study, the impact of production work on the skid roads that have been carried out for many years by manpower, animal power or machinery in a beech (Fagus orientalis Lipsky) stand have been examined. For this purpose, herbaceous understory, forest floor and soil samples were collected from the undisturbed area and the skid road. Weight per unit area (kg ha-1), organic matter ratio and moisture of forest floor and herbaceous understory were measured in undisturbed area and the skid road. Soil characteristics were examined at two different depths (0-5 cm and 5-10 cm). Percentages of sand, silt and clay, electrical conductivity, weight of fine soil (<2mm), soil fraction (>2mm), root mass, organic carbon, moisture equivalent, total porosity, bulk density, moisture, compaction and pH values in the soil were determined. It has been determined that the amount of herbaceous understory and forest floor on the skid road decreased considerably compared to those of the undisturbed area. Parallel to this, the amount of organic matter in the herbaceous understory and the forest floor on the skid road decreased as well. It has been concluded that there are crucial differences between the values of compaction, bulk density, fine soil weight, total porosity and moisture equivalent of the soil samples collected from both the skid road and the undisturbed area at both depth levels, as a result of compaction of the soil caused by harvesting works.
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