Alternatives to Herbicides for Reforestation Under Drought Conditions in the Pacific Northwest U.S.

Graduate Student Name: 
Yury Llancari Valenzuela
Faculty mentor/Supervisor: 
Carlos Gonzalez-Benecke
Email Address (Faculty mentor/Supervisor): 
Department Affiliation: 
Forest Engineering Resources & Management
Job Location: 
- Oak Creek Greenhouse (OSU CAMPUS)
Description of project or research opportunity: 
My research evaluates the effectiveness of different herbicide and non-herbicide Vegetation Management (VM) strategies. Eight VM treatments are being evaluated at six sites in Washington State. These treatments included no-action control, pre and post-planting herbicide applications with and without glyphosate, mechanical harvest residue management, and manual hand weeding during the first growing season or the first two growing seasons. We are analyzing Douglas-fir seedling survival, growth, and physiology (including stomatal conductance and predawn and midday water potential), soil moisture availability, as well as early-seral vegetation abundance and diversity during two growing seasons after planting. This research aims to provide a better understanding of the effect of multiple VM alternatives on seedling growth conditions. Our goal is to inform public opinion and reforestation managers about the effectiveness of chemical and non-chemical VM alternatives for reforestation under water-limited conditions.
Tasks student will perform: 
- Field assistance - Lab assistance - Data entry
Special skills required: 
Collaborative team player, detail-driven organizer, adaptable learner, and initiative taker
Proposed dates of employment (must be between June 19 and September 4): 
Monday, July 8, 2024 to Friday, August 30, 2024
Anticipated hours worked per week: 
10