International Journal of Forestry Research / 2016 / Article / Tab 1

Research Article

Bark Thickness Equations for Mixed-Conifer Forest Type in Klamath and Sierra Nevada Mountains of California

Table 1

Description of study sites at Klamath National Forest (KNF), Tahoe National Forest (TNF), Stanislaus-Tuolumne Experimental Forest (STEF), and Sequoia National Forest (SNF). Average temperature is reported as the mean temperature during winter and summer months, respectively. Soil types include parent material (PM). Species sampled: Douglas-fir (PSME), red fir (ABMA), white fir (ABCO), incense-cedar (CADE), sugar pine (PILA), western white pine (PIMO), Jeffrey pine (PIJE), and lodgepole pine (PICO).

Soil type and
parent materials
Species sampled and sample size (number of trees)Elevation
range of

KNF41.5003°N 123.3333°W24–41559Gravely clay loam
PM: basic igneous, metamorphic, and altered sedimentary rocks
ABCO (53), ABMA (48), CADE (29), PILA (17), PIMO (6), PSME (30)1508–1868
TNF39.5625°N 120.5625°W6–231,397Gravely loam
PM: andesite and volcanic rock
ABCO (39), ABMA (53), PICO (29), PIJE (20), PIMO (23)2013–2369
0–17940Sandy to fine sandy loam
PM: granite and diorite
ABCO (365), CADE (221), PIJE (51), PILA (189)1820–1948
SNF37.4167°N 119.1667°W7–26660Sandy clay loam
PM: sedimentary, granite, and granodiorite
ABCO (40), ABMA (37), CADE (16), PIJE (10), PILA (6)