Growth Models And Profile Equations For Exotic Tallow Tree (Triadica Sebifera) In Coastal Mississippi
CommitteeUlyshen, Michael D.
Matney, Thomas G.
Schultz, Emily B.
Chinese tallow tree (Triadica sebifera (L.)) has become a threat to Southern United States forestlands because of the rapid colonization. To explore the growth rate of tallow, numerous growth models were constructed with destructive sampling method from oak-gum-cypress (Quercus/Liquidambar styraciflua/Taxodium distichum) and longleaf/slash pine (Pinus taeda/ Pinus echinata) forests in southern Mississippi. Moreover, stem profile was also fitted with segmented profile models: Max and Burkhart (1976), Cao (2009) modified Max and Burkhart, and Clark et al. (1991). Numerous results showed that: 1) diameter at breast height, volume and biomass of tallow grew faster in oak-gum-cypress forest while height grew faster with DBH in Longleaf/Slash pine forest; 2) the stem of tallow was generally sturdy in oak-gum-cypress forest while it was slender in longleaf/slash pine forest; however, there was no significant difference between them. Growth and taper models provide a tool for managers to estimate future stocking of tallow tree.