International Scholarly Research Notices / 2012 / Article / Tab 1

Research Article

Early-Stage Thinning for the Restoration of Young Redwood—Douglas-Fir Forests in Northern Coastal California, USA

Table 1

Mean tree density (stems ha−1), basal area (m2 ha−1), quadratic mean diameter (QMD), and stand density index (SDI) of thinned and unthinned coast redwood—Douglas-fir stands at the Mill Creek Property. Significant differences (*) were determined via two-sample 𝑡 -tests at 𝛼 = 0 . 0 5 .

ThinnedUnthinned
Douglas-firRedwoodOverallDouglas-firRedwoodOverall

Density (trees ha−1)320 (61%)205 (39%)525*664 (58%)480 (42%)1144
Basal area (m2 ha−1)31.7 (52%)29.0 (48%)60.741.1 (55%)33.8 (45%)75.0
QMD (cm)36.1*43.2*39.7*27.527.627.5
SDI383*574

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