Abstract
Plot sampling was conducted in the second cultivation areas of Larix olgensis in Heilongjiang Province, China. By analyzing plot investigation data, wood properties, and kraft pulps of 840 plots and 248 sample trees in industrial plantations of L. olgensis on different sites, we examined the growth process of L. olgensis industrial plantation with suitable structure, the wood fiber feature, chemical composition, physical performance and pulp characteristics. It is suggested that site conditions have major effects on plantation growth, fiber contains, fiber length, rate between fiber length and fiber width, pulping rate and pulp physics intensity. The best site for L. olgensis industrial plantation growth is site class I and site class II, which are on lower locations. Site condition has an obvious influence on the wood characteristics. Within the range of site conditions and stand densities studied, the worse the site condition, the less the fiber contains, the shorter the fiber length, and the more the 1% NaOH extraction. This kind of relationship becomes more obvious as stand age increases. However, the influence of site condition on pulping rate and pulp physics intensity is not obvious. The result provides theoretical base for cultivation of industrial fiber plantation of L. olgensis.
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Foundation project: This paper was supported by China Postdoctoral Science Foundation (2005037637), Heilongjiang Postdoctoral Science Foundation (LBH-Z05031) and Project of State Forestry Administration, China (2006-37).
Biography: WANG Shu-li (1964–), male, Ph. Doctor, post-doctor of Northeast Agriculture University, professor of Northeast Forestry University, Harbin 150040, P.R. China.
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Wang, Sl., Wen, J., Yang, Z. et al. Effects site conditions on industrial fiber plantations of Larix olgensis . J. of For. Res. 17, 255–258 (2006). https://doi.org/10.1007/s11676-006-0058-5
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DOI: https://doi.org/10.1007/s11676-006-0058-5