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Reforestation policy has constrained options for managing risks on public forests
- Source :
- Canadian Journal of Forest Research. September, 2020, Vol. 50 Issue 9, p855, 7 p.
- Publication Year :
- 2020
-
Abstract
- Strict forest renewal policies in western Canada focus on replicating the stand type that was cut and projecting the growth of young stands forward using simple models based upon past growing conditions. These policies arose from European principles of sustained yield and now limit options for adaptive management at the time of investment in forest renewal of public lands. We assert that such simple and restrictive policies, combined with long-term yield predictions, give a false sense of sustainability in times of increased drought, fires, and insect and disease attacks that accompany climate change. We must undertake comprehensive changes in forest policy that incorporate disturbance in our forest management planning. This is a large task! Options include (i) zoning public forests to vary intensities of management and minimize risk; (ii) changing stand- and forest-level models to increase the diversity of forests regenerated; (iii) widening the sphere of scientific experts that can influence forest policy and risk management; and (iv) reallocating expenditures on forest renewal, protection, and management to minimize negative impacts of disturbance. Such a comprehensive overhaul of forest management will be necessary as the current assumptions of forest sustainability come under further scrutiny by the public and investors. Key words: forest management, regeneration policy, risk of disturbance, sustained yield, fire. Resume : Des politiques strictes de renouvellement des forets dans l'ouest du Canada mettent l'accent sur le retour du type de peuplement qui a ete coupe et la projection de la croissance des jeunes peuplements a l'aide de modeles simples fondes sur des conditions de croissance passees. Ces politiques sont issues des principes europeens de rendement soutenu et limitent a present les options de gestion adaptative au moment d'investir dans le renouvellement des forets sur les terres publiques. Nous maintenons que ces politiques simplistes et restrictives, combinees aux predictions de rendement a long terme, donnent un faux sentiment de durabilite alors qu'augmentent les secheresses, les feux et les invasions d'insectes et de maladies qui accompagnent les changements climatiques. Nous devons proceder a des changements importants des politiques forestieres qui incorporent les perturbations dans notre planification de l'amenagement forestier. Il s'agit d'une tache enorme! Les options incluent (i) zoner les forets publiques pour varier l'intensite de l'amenagement et minimiser les risques; (ii) changer nos modeles a l'echelle du peuplement et de la foret pour augmenter la diversite des forets qui sont regenerees; (iii) elargir la sphere des experts scientifiques pouvant influencer les politiques forestieres et la gestion du risque; et (iv) reallouer les depenses reliees au renouvellement de la foret, a la protection et a l'amenagement pour minimiser les impacts negatifs des perturbations. Un remaniement de cette ampleur de l'amenagement forestier sera necessaire a mesure que les hypotheses courantes de durabilite de la foret seront davantage soumises a un examen rigoureux du public et des investisseurs. [Traduit par la Redaction] Mots-cles: amenagement forestier, politique de regeneration, risque de perturbation, rendement soutenu, feu.<br />Introduction Disturbance has played a large role in the boreal forests of western Canada, especially in the last two decades. Infestations of mountain pine beetle (Dendroctonus ponderosae Hopkins, 1902) (Bentz [...]
Details
- Language :
- English
- ISSN :
- 00455067
- Volume :
- 50
- Issue :
- 9
- Database :
- Gale General OneFile
- Journal :
- Canadian Journal of Forest Research
- Publication Type :
- Academic Journal
- Accession number :
- edsgcl.634849677
- Full Text :
- https://doi.org/10.1139/cjfr-2019-0422