Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 10 of 10 for “"individual tree growth"”.
-
Diameter and height increment and mortality functions for loblolly pine trees in thinned and unthinned plantations
… remains some controversy as to the benefits of individual tree growth and yield prediction models over stand-level models, individual tree models still have wide acceptance. A generalized thinning response variable which can account for the intensity of thinning, as well as the age of the stand …
-
A collection of statistical methods for applications in tree demography
… to analyze and interpret. In the context of tree demography, the study of forest dynamics at both the individual and stand level is crucial for understanding forest ecosystems and their response to environmental changes. In this dissertation, we present a collection of statistical methods and …
-
Spatio-temporal optimization of tree removal to efficiently minimize crown fire potential
… variability of fuels within stands, location of individual cut- and leave-trees after treatments, and the temporal effects of these prescriptions for reducing crown fire potential over time. To address the limitations of current stand-level thinning prescriptions, a computerized approach to …
-
Spatio-temporal optimization of tree removal to efficiently minimize crown fire potential
… variability of fuels within stands, location of individual cut- and leave-trees after treatments, and the temporal effects of these prescriptions for reducing crown fire potential over time. To address the limitations of current stand-level thinning prescriptions, a computerized approach to …
-
Diameter/basal area increment equations for loblolly pine trees in cutover, site-prepared plantations
… area increment equations for loblolly pine trees in thinned and unthinned plantations on cutover, site-prepared areas. Results indicated that one set of coefficients was sufficient to estimate individual tree growth (for the three year period following thinning) on lightly thinned and …
-
Modeling the potential effects of growth reductions and changes in photosynthetic efficiency and needle retention on the stand-level growth of loblolly pine plantations
An existing individual tree growth and yield model (PT AEDA2) was modified study the potential effects of air pollution stress on the growth and yield of loblolly pine plantations. These modifications were based on the assumption that pollution stress on older trees could result in reductions in …
-
Sensitivity of two forest growth models to simulated pollution stress modifications
… interactions of air pollution stress and forest growth and yield. TASS was previously developed to examine the dynamics and yield of Douglas-fIr, and PTAEDA2 was previously developed to examine individual tree growth and stand development in loblolly pine plantations. Differential levels of …
-
Demand prediction modeling for utility vegetation management
… utility inspects and then prunes and/or removes trees within their entire service area on an annual basis. In recent years LiDAR technology has become more widely implemented in utilities to quickly and accurately inspect their service territory. VM programs encounter the dilemma of wanting to …
-
Dynamic modeling of branches and knot formation in loblolly pine (Pinus taeda L.) trees
… to simulate the process of initiation, diameter growth, death and self-pruning of branches in loblolly pine (Pinus taeda L.) trees was developed. A data set was obtained from a destructive sampling of whorl sections from 34 trees growing under different initial spacing. Data from dissected …
-
Die relative Kronenlänge als Steuerungsparameter des Einzelbaumwachstums der Fichte
Mit der Untersuchung der relativen Kronenlänge als Steuerungs¬parameter des Einzelbaumwachstums der Fichte (Picea abies [L.] Karst.) soll ein Beitrag zur praktischen Umsetzung moderner Waldbaukonzepte geleistet werden. Diese Konzepte streben über stabile Einzel¬bäume die Überführung bisheriger …