Douglas Fir Sapling Mortality Calculator for Post-Fire Restoration
Targeting Ecosystem recovery? Calculate the exact Douglas Fir order volume needed to overcome Hydrophobic soil layers.
Project Goals
Trees to Order
Buy 328 extra to account for loss.
"To have 400 survivors in your Post-Fire Restoration project, you need to plant 82% more trees."
The Challenge
Every restoration project faces unique pressures. In the context of Post-Fire Restoration, the primary failure point is often Hydrophobic soil layers.
Breaking up water repellent soil crusts may be necessary to improve water infiltration. To achieve Ecosystem recovery, project managers cannot rely on "best-case" survival rates. Budgeting for a 45% mortality rate is a realistic baseline.
Planning Breakdown
The Goal
Establish 400 mature stems/acre.
The Risk
At 45% mortality, you will lose 328 trees/acre.
The Solution
Order 728 seedlings. This "gross-up" ensures you hit targets despite natural loss.
Silvics of Douglas Fir
Pseudotsuga menziesiiGrowth Profile
Classified as a Large evergreen conifer. While valuable for Structural lumber, it is notably susceptible to Root rot in wet soils during establishment.
Planter's Tip
"Ensure planting sites have excellent drainage to prevent fungal pathogens."