Versuchsplanung und statistische Auswerteverfahren zur Ermittlung des Einzelbaumeinflusses auf die Walddynamik in Baumbeständen
Experimental design and statistical analyses to determine the effect of individual trees on forest dynamics
On the one hand, forest are an essential component of our landscape worth to be conserved. On the other hand, forests are also an economical factor. Both ecology and economy hance have a common interest in near-natural sustainable forest management and silviculture with a special focus on knowledge necessary for managing allocation processes and forest stability. In order to investigate forest dynamics, recent studies focus on individual trees (e.g. on their resource allocation through leaves, roots, leave fall and seed dispersal) and look for quantifiable relationships with stand development and competitive relationships between individuals. However, extensive data aquisition is required for adequately modelling only small aspects of the complex structure (root coring, see traps). The results are not only subject to large stochastical variability, but are also influenced systematically be the sampling design. The objective of this study are hence the systematic development and investigation of different stochastical models and the development of sampling designs adapted to the respective analytic models as well as the creation of an adequate software tool.