Tree regeneration after fire: Aspen removal experiment, soil moisture and pH 2001

This research was intended to address the general question of whether asexual stem regeneration of trembling aspen (Populus tremuloides Michx.) reduces rates of establishment and growth of potential invading conifer species during the initial years following fire. Interactions between aspen and conifers were studied under natural conditions in a burned aspen stand with a high potential for aspen re-sprouting. The study contributes to our understanding of whether competitive interactions between tree seedlings are likely to help maintain deciduous stands across disturbance cycles by reducing the potential for successful conifer establishment. Data from soil samples collected with a hand corer (one sample/plot) on 20 July 2001. Wet and dry measurements were made for moisture calculations and pH was measured using an electronic probe submersed in a distilled water/soil slurry.