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Table II
Thinning experiments – control plot data.
Study and species | n 1 | Age2 | Obs. | Volume | Net increment | Mortality | q | α |
---|---|---|---|---|---|---|---|---|
period3 | (m3 ha−1) | (m3 ha−1 y−1) | (m3 ha−1 y−1) | |||||
1, Lodgepole pine (Pinus contorta) | 6 | 40 | 5 | 334 | 6.54 | 2.32 | 0.060 | –1.74 |
2, Scots pine (Pinus sylvestris) | 5 | 55 | 6.25 | 518 | 11.59 | 5.11 | 0.072 | –1.91 |
3, Hemlock (Tsuga heterophylla) | 2 | 72 | 32 | 1042 | 15.94 | 6.01 | 0.321 | –1.71 |
4, Monarch birch (Betula maximowicziana) | 2 | 77 | 14 | 214 | 1.57 | 1.55 | 14 | –2.22 |
5, Gold birch (Betula ermanii) | 2 | 25 | 10 | 133 | 8.91 | 1.38 | 0.243 | –2.21 |