Regenerating eastern white pine: A cooperative research approach

Abstract

A 27-ha field study was set up in 1994 within the Petawawa Une etude sur une parcelle de 27 ha a ete entreprise en 1994 Research Forest near Chalk River, Ontario with input and supdans la Foret experimentale de Petawawa situee pres de Chak River port from local research scientists, forest managers and forest techen Ontario, avec l'aide et l'appui des chercheurs locaux, des amenicians. The study was designed to examine the effects of partial nagistes et des techniciens forestiers. L'etude a ete concue pour cutting, site preparation and underplanting in natural eastern etudier les effets des coupes partielles, de la preparation du sol white pine (Pinus strobur L.) stands. A complete randomized block et de la plantation en sous-etage dans des peuplements naturels experimental design was followed with four replicates. Three thinde pin blanc. (Pinus strobus L.) Un design de blocs experimenning (control, one-crown and two-crown spacing) and four site taux repartis totalement au hasard a ete repete quatre fois. Trois preparation (control, scarification, brush control using herbieclaircies (temoin, m e eclaircie par le haut, et deux eclaircies par tide, and both scarification and brush control using herbicide) treat1e haut) et quatre traitements de preparation du sol (temoin, were applied-Natural regeneration and planted seedling surscarifiage, controle de la competition a l'aide de phytocide, et scarvival and growth, soil nutrient availability and other environmental ifiage suivi de controle de la competition a l'aide de phytocide) factors are being monitored and ~~corded. Early results have conont ete appliques. La regeneration naturelle, la survie et la croistributed to the development of a new provincial silvicuitural sance des semis plantes, la disponibilite des elements nutritifs dans guide and a prototype expert decision support system for white personnel en place participe a la collecte des donnees sur le terrain et assure la protection contre le feu. Le site a sewi de zone Key words: eastern white pine, Pinus strobus, natural regenerde demonstration pour les personnes interessees par l'amenageation, understory planting, multidisciplinary field research, forest research sites ment des ecosystemes de pin blanc. L'etude est decrite parmi les sites du reseau FERN sur Internet.

Modeling Pinus strobus mortality following prescribed fire in Quetico Provincial Park, northwestern Ontario

“…Noncatastrophic surface fires are characteristic of white pine forests (Maissurow 1935(Maissurow , 1941McRae 1994), recurring historically every 10-80 years in these ecosystems (Swain 1973;Heinselman 1973;Woods and Day 1977;Burgess and Methven 1977;Guyette 1996a, 1996b). Prescribed surface fire has been shown to facilitate white pine seedling establishment (Blankenship and Arthur 1999), and it has been suggested that fire suppression programs have had a negative impact on white pine regeneration by reducing the prevalence of sites where competitive vegetation and soil organic matter have been removed by fire (Burgess et al 1999). According to McRae et al (1994), the survival of remaining white pine stands in Canada may depend on the reintroduction of fire into these ecosystems.…”

The need for an understory decision support system for temperate deciduous forest management

“…(Botequim et al, 2014). Other papers examined the promotion of overstorey establishment via understory management (Burgess, Wetzel, & Pinto, 1999;Iverson et al, 2018). One paper estimated how well forest managers could assess stand characteristics in computer-generated images that sometimes incorporated understory vegetation (Barrett, Zuuring, & Christopher, 2007).…”

Long-term snag and downed woody debris dynamics under periodic surface fire, fire suppression, and shelterwood management

“…Aggressive fire suppression activities over the past century are believed to be responsible for a present scarcity of young white and red pine stands in Ontario (Chapeskie et al 1989;Burgess et al 1999). Over time, fire-management policies that lengthen the fire rotation are expected to increase the proportion of overmature and old-growth habitat across the landscape.…”