Development of a Precommercial Thinning Guide for Black Spruce
Author | : Kirk Douglas Schmidt |
Publisher | : |
Total Pages | : 128 |
Release | : 1993 |
Genre | : Black spruce |
ISBN | : |
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Author | : Kirk Douglas Schmidt |
Publisher | : |
Total Pages | : 128 |
Release | : 1993 |
Genre | : Black spruce |
ISBN | : |
Author | : Ontario. Northwest Science & Technology |
Publisher | : Thunder Bay, Ont. : Northwest Science & Technology |
Total Pages | : 16 |
Release | : 1997 |
Genre | : Black spruce |
ISBN | : |
Begins with a literature review on the habitat, reproduction and establishment, and stand development of black spruce. This is followed by a review of thinning as a silvicultural system, and thinning of black spruce in particular. Concludes with a report of a case study of the growth response of black spruce to various levels of thinning. The study area had been burned by wildfire and is located in the Tyrol Lake Demonstration Forest near Lake Nipigon, Ontario.
Author | : Robert W. Sassaman |
Publisher | : |
Total Pages | : 36 |
Release | : 1977 |
Genre | : Forest management |
ISBN | : |
Author | : William F. Johnston |
Publisher | : |
Total Pages | : 16 |
Release | : 1971 |
Genre | : Black spruce |
ISBN | : |
Author | : Ontario. Ministry of Natural Resources |
Publisher | : |
Total Pages | : 164 |
Release | : 1997 |
Genre | : Aspen |
ISBN | : |
Author | : Miroslaw M. Czapowskyj |
Publisher | : |
Total Pages | : 16 |
Release | : 1986 |
Genre | : Black spruce |
ISBN | : |
S2A greenhouse experiment was conducted to study the effects of soil water level on growth, biomass accretion, and inorganic element uptake by black spruce. One-year-old containerized seedlings were grown for 3 years at three water table depths. All trees survived for the duration of the study confirming that black spruce has a certain degree of survival tolerance to high water tables. However, tree height, diameter growth, and biomass production significantly increased as the depth to water table increased. The foliar levels of N, P, K, Mg, Fe, Zn, and B increased and those of Cu and Mn decreased with the increasing depth to the water table. For ash and Ca, differences were significant but did not follow a consistent trend. In shoots, the level of N, Ca, and Mg increased and those of ash, K, Fe, Cu, B, Al, and Mn decreased with the increasing depth to the water table. The level of P was not affected by the water table. In roots, the level of N and Ca increased and the level of ash, Mn, Fe, Al, and Cu decreased with increasing depth to the water table. The level of P, Mg, and Zn was significantly different but did not follow any trend. Foliar concentration of ash, Ca, Na, Mn, Fe, Zn, Cu, Al, and B increased and concentration of N, P, K, and Mg decreased with the increasing foliage age. In shoots, ash, Ca, Al, Fe, and Zn increased and N, P, K, Mg, and B decreased with the increasing tree and shoot age. In roots, Fe, Mn, Na, and Al increased and N, P, and Cu decreased with the increasing tree age.S3.
Author | : Russell D. Briggs |
Publisher | : |
Total Pages | : 310 |
Release | : 1993 |
Genre | : Forest management |
ISBN | : |