Crop-tree thinning of Western Larch (EP 511)
To determine the response to spacing of older western larch trees.
Individual trees were spaced in circles with radii of 2.4, 3.6 and 4.8 m (8, 12 and 16 feet), plus an unspaced control. Six diameter classes between 2.5 and 15.0 cm (1"-6") were recognized at the time of spacing. Twenty trees in each of the six diameter classes were spaced to randomly assigned radii of clearance.
- Thompson, C.F. 1992. Crop-tree thinning of western larch in southeastern British Columbia: 30-year results. B.C. Min. For., Victoria, B.C. Res. Note No. 110.