"Growing trees backwards": Description of a stand reconstruction model (P-53)

Abstract

We describe an individual-tree model that uses contemporary measurements to "grow trees backward" and reconstruct past tree diameters and stand structure in ponderosa pine dominated stands of the Southwest. Model inputs are contemporary structural measurements of all snags, logs, stumps, and living trees, and radial growth measurements, if available. Key steps include the application of inverse decay functions to estimate snag and log death dates, and the estimation of tree size in the reconstruction year via radial growth data or accrued basal area increment. The model is provided as a function for R, and can be modified for other species and regions.

Parent Publication

• Fort Valley Experimental Forest-A Century of Research 1908-2008 (P-53)

Citation

Bakker, Jonathan D.; Meador, Andrew J. Sanchez; Fule, Peter Z.; Huffman, David W.; Moore, Margaret M. 2008. "Growing trees backwards": Description of a stand reconstruction model. In: Olberding, Susan D.; Moore, Margaret M., tech coords. Fort Valley Experimental Forest - A Century of Research 1908-2008. Conference Proceedings; August 7-9, 2008; Flagstaff, AZ. Proceedings RMRS-P-53CD. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 136-147