Inconsistent Growth Response to Fertilization and Thinning of Lodgepole Pine in the Rocky Mountain Foothills Is Linked to Site Index

Figure 4

Diameter growth differential of thinning and fertilization treatments relative to the controls in relation to nitrogen uptake by the foliage in year 1 (N content of treated trees—N content of control trees). Diameter growth differential is the difference between DBH growth after three years of the treated stand and DBH growth of the associated control stand.