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A Systematic Review of Forest Fertilization Research in Interior British Columbia

Author(s) or contact(s): A. Reid, L. de Montigny, C. Prescott, and T. Sajedi
Source: Ministry of Forests, Lands, Natural Resource Operations and Rural Development
Subject:Douglas-fir, Fertilization, Growth and Yield, Knowledge Gaps, Lodgepole Pine, Spruce
Series: Technical Report
Other details:  Published 2017. Hardcopy is available.


The Forests for Tomorrow (FFT) Program is investing in fertilization as a mitigation strategy to address mid-term timber supply disruptions in the interior of British Columbia due to the mountain pine beetle outbreak. Forest fertilization has been shown to increase tree growth, accelerate stand development, and shorten rotation ages, but the response to fertilization varies with species, and site and stand conditions. The FFT Program relies on the results of fertilization research conducted over 30 years by the B.C. Ministry of Forests, Lands and Natural Resource Operations for decision-making regarding operational fertilization. As FFT considers the expansion of the fertilization program, a review of research results to date was needed to identify knowledge gaps and information needs. As a result, a systematic review of existing published information was conducted on the growth response of interior tree species—lodgepole pine (Pinus contorta var. latifolia Engelm), interior spruce (Picea glauca [Moench] Vos , Picea engelmannii Parry ex Engelm, and their hybrids), and Douglas-fir (Pseudotsuga menziesii)—to fertilization in relation to fertilization type and amount, damaging agents, stand density, site quality, and stand age at fertilization.

Within the interior of British Columbia, there is a need for more information on growth response on a wider range of sites (particularly for interior spruce and Douglas-fir), in older stands, and over long periods (to rotation).

Download Technical Report 111 (390 KB)

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Updated January 19, 2018