Soil properties and dendrological parameters of trees after 20-year reforestation in the post fire area Potrzebowice (Middle Poland)
Journal Title: Journal of Research and Applications in Agricultural Engineering (ISSN 1642-686X) - Year 2018, Vol 63, Issue 2
Abstract
The paper presents results of the research on the assessment of technical parameters of forest stands on a post-fire area which has been reclaimed for 20 years, based on various methods of soil preparation. An attempt was made to determine the potential influence of soil properties on them. The following variants were tested: digging furrows with a forest plough, shallow tillage with a disc plough, dimples dug with a shovel, natural succession, forest complex intact by fire (zero area). Planting was done with: Quercus rubra, Pinus sylvestris, Betula pendula, Quercus petraea, Larix decidua, Alnus incana. The examined area is dominated by Brunic arenosols and podzols. The following technical parameters were determined: height, diameter at breast height (DBH), relascopic number of trees and forest cover. Such properties were marked as: texture, solid phase density, soil density, porosity, moisture, pH, hydrolytic acidity, cation exchange capacity, the content of exchangeable cations and available forms, organic carbon and total nitrogen content. No relations were observed between the variations of soil properties and technical parameters of the investigated forest stands. It suggests that soil preparation methods were the most important factor which influenced the examined parameters. According to the obtained results, planting into dimples is a good method for post-fire soil preparation. It is difficult to determine unambiguously which reclamation method is the best for a post-fire area in order to obtain better technical parameters, however, the observations may be helpful in determining more effective ways of post-fire forest stands’ reconstruction.
Authors and Affiliations
Krzysztof Bojarski, Zbigniew Kaczmarek
Keywords
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