Development of oak and beech seedlings planted under varying shelterwood densities and with different site preparation methods in southern Sweden |
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| Authors: | Pelle Gemmel Urban Nilsson Torkel Welander |
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| Institution: | (1) Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences, Box 49, S-23053 Alnarp, Sweden |
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| Abstract: | Effects of site preparation, shelterwood density and planting depth on the survival and growth of planted beech and oak seedlings were studied. Experiments were performed in one oak and one beech stand in southern Sweden. Two areas with different densities of shelterwood and one clearcut were established in each stand. Growth, damage and survival of the planted seedlings were observed for three years. Soil water potential was recorded weekly and radiation and soil temperatures were recorded continuously during the growing seasons.Neither site preparation methods nor planting depth affected oak seedling growth, when planting was carried out on fresh clearcuts or in shelterwoods, while growth of beech seedlings was positively affected by mounding. Growth of oak seedlings was inhibited by the shelterwood treatments. In beech seedlings, growth was lowest in dense shelterwood, while there was no difference in growth between seedlings on the clearcut area and in the shelterwood of low density. Differences in growth may be explained by differences in radiation and soil water potential.When planting was carried out on a one-year-old clearcut, site preparation improved the subsequent growth of oak and beech seedlings. |
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| Keywords: | Fagus sylvatica L Quercus robur L ground vegetation competition planting depth |
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