Global ETD Search

1	The effects of silviculture on the wood properties of southern pine Snow, Roger Dustin 11 August 2007 (has links) The ability to predict wood properties would aid in the growing of southern pine timber for specific end uses. Three wood properties, specific gravity, shrinkage, and knottiness, were chosen as the focus of this study. Silvicultural studies focusing on southern pine management were researched for any information on their impacts on wood properties. The information from silvicultural studies was then used to evaluate growth and yield models for ease of adaptation to predict wood properties. The information necessary to predict all wood properties is not currently available. Although, specific gravity has significantly more information available than the other properties and it is probably the most predictable. Growth and Yield Models Silviculture Wood Properties
2	Structural analysis and growth modeling of natural forests in Vietnam Thi Thu Hien, Cao 05 February 2015 (has links) No description available. 634 Forstwirtschaft (PPN621305413)
3	Modeling the effect of neighborhood competition on tree diameter growth in the Pacific Northwest Coast Range Naing, Htet Lin 08 August 2023 (has links) (PDF) Trees compete for various resources such as sunlight, water, and nutrients, which can be expressed as numerical terms, called competition indices (CI). Competition between individual trees is correlated with their growth and mortality. Therefore, CIs are used as independent variables to develop, improve and modify growth and yield models. This study was conducted to test the effect of neighborhood competition on tree diameter growth among Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), western hemlock (Tsuga heterophylla (Raf.) Sarg) and red alder (Alnus rubra Bong.), in the Pacific Northwest Coast Range, USA. After testing seven distance-independent CIs and three distance-dependent CIs, only the distance-independent CIs were found to significantly affect the diameter growth model. Among them, CIs with basal area and diameter information were the most impactful. As a result, a simple CI was very effective in a model that accounts for the basal area information of different tree species. growth and yield models diameter growth models neighborhood competition competition index carbon biomass Douglas-fir western hemlock red alder Pacific Northwest Coast Range Forest Biology Forest Management Forest Sciences Other Forestry and Forest Sciences

1

Page generated in 0.065 seconds