Density effects on height growth and its implications for site index prediction and growth projection

Abstract

Four studies (two with loblolly and two with slash pine) show an effect of number of stems per acre on mean dominant and codominant height. One slash pine study averaeed a 1-foot decrease in mean height at age 30 for each 100-tree increase in planting density over the range of 200 to 1200 seedlings per acre. Ignoring this density-height effect in a growth projection model developed from the same slash pine data resulted in over-estimating growth by as much as 46 percent.

Citation

Lloyd, F. Thomas; Jones, Earle P. Jr. 1983. Density effects on height growth and its implications for site index prediction and growth projection. In: Proceedings of the Second Biennial Southern Silvicultural Research Conference; 1982 Nov. 4-5; Atlanta, GA: 329-334.