Undergraduate Research

Undergraduate Research

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Leah Leonard
Leah Leonard

Improving growth and yield estimates from growth index ratio method of stand table projection in red oak-sweetgum bottomland hardwood stands

Forestry senior Leah Leonard, investigated how well Stand Table Projection (STP) methods of forest growth and yield prediction performed in red oak-sweetgum bottomland hardwoods stands. Data used in the project were collected from 1981-2005. Two approaches of STP were investigated: the traditional STP on diameter classes and an alternative approach of implementing STP on individual trees. STP was implemented under assumption that tree survival was predicted without error and also under survival prediction system that contained error (a mortality model). Under the assumption that tree survival was predicted without error, STP was generally unbiased for stands in the age range 35-70 years but over predicted yields and stumpage value for stands below 35 years and under predicted yield in stands older than 70 years. When tree survival was predicted with error (using a mortality model), STP generally over predicted yields and stumpage value across all ages. Comparing traditional STP to STP on individual trees, there was no clear advantage of carrying out STP on individual trees.


News / Recognition

Undergraduate Research Symposium

Katherine Abell, a wildlife, fisheries, and aquaculture major, and Zachary Senneff, a forestry major, were among the winners of the 2014 MSU Undergraduate Research Symposium. Abell placed first in the community engagement and social sciences categories and Senneff placed second in the biological sciences and engineering category.

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