Corpus ID: 17467244

Modeling the size-density relationship in direct-seeded slash pine stands

@article{Cao2000ModelingTS,
  title={Modeling the size-density relationship in direct-seeded slash pine stands},
  author={Quang V. Cao and Thomas J. Dean and V. Clark Baldwin},
  journal={Forest Science},
  year={2000},
  volume={46},
  pages={317-321}
}
The relationship between quadratic mean diameter and tree density appeared curvilinear on a log-log scale, based on data from direct-seeded slash pine (Pinus elliottii var. elliottii Engelm.) stands. The self-thinning trajectory followed a straight line for high tree density levels and then turned away from this line as tree density decreased. A system of equations was developed to model the reciprocal effects of stand diameter and density through time. The equations performed well for these… Expand

Figures and Tables from this paper

A Density Management Diagram for Longleaf Pine Stands with Application to Red-Cockaded Woodpecker Habitat
TLDR
A “mature stand boundary” is introduced that restricts the size‐density relationship in large-diameter stands more than the expected self-thinning trajectory and is applicable throughout the range of longleaf pine. Expand
Using segmented regression to model the density–size relationship in direct-seeded slash pine stands
Abstract This study investigated the application of segmented regression techniques to modeling the trajectory of tree density and quadratic mean diameter through time for individual stands. The fullExpand
A density management diagram for Scots pine ( Pinus sylvestris L.): A tool for assessing the forest's protective effect
Density management diagrams (DMD) are graphical tools used in the design of silvicultural regimes in even-aged forests. They depict the relationship between stand density, average tree size, standExpand
1 A density management diagram for Scots pine ( Pinus sylvestris L . ) : a tool for assessing the forest ’ s 1 protective effect 2
10 Density Management Diagrams (DMD) are graphical tools used in the design of silvicultural regimes in 11 even-aged forests. They depict the relationship between stand density, average tree size,Expand
Modeling Self-Thinning Patterns in Loblolly Pine with Provenance and Family Effects
Size-density trajectories and self-thinning boundary lines were modeled for two diverse provenances of Pinus taeda L. and five open-pollinated families within each provenance. The data used come fromExpand
DYNAMICS OF DENSE DIRECT-SEEDED STANDS OF SOUTHERN PINES
Direct seeding of southern pines is an effective method of artificial regeneration, producing extremely dense stands when survival exceeds expectations. Long-term studies of dense direct-seededExpand
A Simple Stand Growth Model Based on Canopy Dynamics and Biomechanics
TLDR
A new approach to simulating net forest growth based on density effects on mean crown dimensions and stem geometry required to counteract the bending moment generated from wind action on the crown has the potential to create an alternative approach for accessing environmental changes on forest growth and yield to complement extant carbon-balance models. Expand
Using nonlinear quantile regression to estimate the self-thinning boundary curve
The relationship between tree size (quadratic mean diameter) and tree density (number of trees per unit area) has been a topic of research and discussion for many decades. Starting with Reineke inExpand
Early development of tended mixtures of aspen and spruce in western Canadian boreal forests
Abstract In 1992, the Western Boreal Growth and Yield Association (WESBOGY) began a long-term study to evaluate the dynamics of regenerated aspen (Populus tremuloides Michx.)—white spruce (PiceaExpand
A two-component dynamic stand model of natural thinning
Abstract Our investigation aims (1) to derive a dynamic model for mean volume and biomass growth projection over time, considering the competition-induced tree mortality (dynamic size-density model),Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 39 REFERENCES
A Tree Survival Equation and Diameter Growth Model for Loblolly Pine Based on the Self-Thinning Rule
TLDR
A system of equations was developed to describe the reciprocal effects of stand density and quadratic mean diameter through time, by use of data from a loblolly pine plantation, based on the self-thinning rule, which regulates an overcrowded population by imposing a maximum mean tree size for a given stand density. Expand
A growth model based on the self-thinning rule
A two-staged stand growth model is developed to describe the relationship between biomass or volume and numbers of stems in even-aged, monospecific plant populations undergoing self-thinning. TheExpand
An Individual Stand Growth Model for Mean Plant Size Based on the Rule of Self-thinning
TLDR
A growth model for pure, even-aged stands of plants is asymptotically bounded above by the self-thinning rule that relates maximum plant size to stand density and substituting the survival model for density in the mean size relationship. Expand
Biomathematical growth equations for natural longleaf pine stands
Simultaneous stand level basal area projection and survival prediction equations with useful extrapolative properties are derived from assumptions that reflect many of the currently accepted conceptsExpand
The allometric interpretation of the self-thinning rule
Abstract Plant populations growing at high densities undergo density-dependent mortality or self-thinning. The density of survivors ({ρ}) is related to their mean biomass (w) by the power equation wExpand
The Self-Thinning Rule
Publisher Summary The self-thinning rule describes plant mortality because of competition in crowded even-aged stands. The rule is best understood with respect to a graph of log biomass (log B) perExpand
Yields and Size Class Distributions for Unthinned Loblolly Pine Plantations on Cutover Site-Prepared Lands
The work reported here was sponsored by the Loblolly Pine Growth and Yield Research Cooperative at VPI and SU. Support from Bowater Incorporated, Champion International Corporation, ChesapeakeExpand
A new analytical model based on the −3/2 power rule of self-thinning
A nonlinear analytical model is developed to describe the relationship between average plant size (weight or volume) and stand density in single-aged, monospecific plant populations. The model give...
Systems of Equations in Forest Stand Modeling
...
1
2
3
4
...