Soil Sampling and Sky Exposure Methods to Compare Characteristics of Leeward Microsites for Treeline Facilitation
Boggs L and Tomback D. 2016. Soil Sampling and Sky Exposure Methods to Compare Characteristics of Leeward Microsites for Treeline Facilitation. Research Permit and Reporting System
We hypothesized that Pinus albicaulis (whitebark pine), a keystone species, has leeward microsites with higher carbon and nitrogen content and lower sky exposure than Abies lasiocarpa (subalpine fir). We sampled soil and sky exposure from P. albicaulis, A. lasiocarpa, rock, and open microsites at twenty random locations at treeline on White Calf Mountain, Glacier National Park, Montana.