A framework to optimize the restoration and retention of large mature forest tracts in managed boreal landscapes

Bouchard, Mathieu; Garet, Jérome

doi:10.1890/13-1893.1

Cited by 12 publications

(6 citation statements)

References 61 publications

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“…Different propositions have been made to better preserve old-growth forests or their structural attributes under forest management. The most common proposals involve conservation, using partial cuts, extending forest rotations or reducing harvesting rate (Bauhus et al 2009;Ruel et al 2013;Bouchard and Garet 2014). Our study could help researchers and managers to identify various type of old-growth in order to develop management practices adapted to old-growth forest conservation.…”

Section: Implications For Managementmentioning

confidence: 98%

“…Then, seventy-one sites were sampled based on stratified random sampling of forest inventory environmental type and stand age, depending on accessibility. As the study territory is a managed area, the 80-100 years class was the least abundant (12 sites sampled, with at least one site per environmental type), as this class is the most often harvested (Bouchard and Garet 2014). However, gapdynamics do not start exactly 100 years after the fire (Bouchard et al 2008;Lecomte et al 2006), so we assumed that numerous sites in the 100-200 years class were still evenaged, compensating the lack of sites in the 80-100 years class.…”

Section: Study Territorymentioning

confidence: 99%

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Structural diversity and dynamics of boreal old-growth forests case study in Eastern Canada

Martin

Fenton

Morin

2018

Forest Ecology and Management

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Old-growth stands are considered as key components of boreal forest diversity and their preservation is largely integrated into management plans. However, while the differences between old-growth and young forests have largely been studied, little is known about the diversity of boreal old-growth forests. In managed landscapes, the efficacy of old-growth conservation plans may be reduced depending on how these old-growth forests are considered: as a single, homogeneous and steady-state forest type or as multiple, diverse and dynamic forest types. To fulfil this gap, our objectives were: (1) to create a typology of old-growth boreal structures; (2) to observe how these structures are influenced by environmental and temporal parameters; and (3) to elaborate a succession model of old-growth structural dynamics along temporal and environmental gradients. Seventy-one mature and overmature stands were sampled within a 2200 km 2 territory situated in Eastern Canada. Cluster analysis divided the sampled stands into two even-aged types, three transition old-growth types and six true old-growth types. Slope, minimum time since last fire and organic horizon depth were the three environmental and temporal parameters influencing the oldgrowth structures. Paludification-related productivity decline was present in only one old-growth forest type, while the other sites remained productive. These results allowed the creation of three succession models of the dynamics of old-growth stands in the boreal forest of eastern Canada. Boreal stands can undergo numerous structural changes once the old-growth succession process is initiated. An increase in structural diversity when the true old-growth stage is reached, coupled with a variety of secondary disturbance characteristics, favours multiple pathways of structural evolution of these ecosystems over time. Therefore, forest management planning should incorporate this complexity to improve the preservation of old-growth forests in managed territories.

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Section: Implications For Managementmentioning

confidence: 98%

Section: Study Territorymentioning

confidence: 99%

Structural diversity and dynamics of boreal old-growth forests case study in Eastern Canada

Martin

Fenton

Morin

2018

Forest Ecology and Management

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“…The harvesting heuristic is able to achieve an improvement in levels of habitat configuration and area by allocating most of the harvest away from high value woodland caribou patches (Equation 2 and Figure 7A). In doing so, this harvesting heuristic concentrates anthropogenic activities, which has been demonstrated to be a strategy that may better achieve conservation goals for improving and maintaining levels of old growth boreal forest (a desirable D r a f t habitat type for woodland caribou; Tittler et al 2012;Bouchard & Garet 2014). Further, concentrating timber harvesting may have an added economic benefit by reducing the amount of roads that need to be built and maintained to access stands for timber production.…”

Section: Discussionmentioning

confidence: 99%

Conserving woodland caribou habitat while maintaining timber yield: a graph theory approach

et al. 2016

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The fragmentation and loss of old-growth forest has led to the decline of many forest-dwelling species that depend on old-growth forest as habitat. Emblematic of this issue in many areas of the managed boreal forest in Canada is the threatened woodland caribou (Rangifer tarandus caribou (Gmelin, 1788)). We develop a methodology to help determine when and how timber can be harvested to best satisfy both industrial timber supply and woodland caribou habitat requirements. To start, we use least-cost paths based on graph theory to determine the configuration of woodland caribou preferred habitat patches. We then developed a heuristic procedure to schedule timber harvesting based on a trade-off between merchantable wood volume and the remaining amount of habitat and its connectivity during a planning cycle. Our heuristic can attain 84% of the potential woodland caribou habitat that would be available in the absence of harvesting at the end of a 100 year planning horizon. Interestingly, this is more than that which is attained by the current plan (50%) and a harvesting plan that targets high volume stands (32%). Our results indicate that our heuristic procedure (i.e., an ecologically tuned optimization approach) may better direct industrial activities to improve old-growth habitat while maintaining specified timber production levels.

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“…Simulation produces five primary data output needed, namely: a. Land use, including three output data i.e., land use (%LU), land productivity for wood products (PL-HHK) and land productivity for non-timber products (PL-NTFPs) (Bouchard & Garet, 2014;Payn et al, 2015). b.…”

Section: Supersilvik Modellingmentioning

confidence: 99%

“…Several groups of important variables were used as data input as described below. Simulation that is often used in natural resource management planning provides a projection as shown in Table 3 (Bouchard & Garet, 2014;Thompson et al, 2011). …”

Section: B Recommended Five Optionsmentioning

confidence: 99%

Implementation of Multi-System Silviculture (Mss) to Improve Performance of Production Forest Management: A Case Study of Pt. Sarpatim, Central Kalimantan

Suryanto¹,

Susilo

Onrizal

et al. 2018

Ina.J.For.Res

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. SARPATIM, CENTRAL KALIMANTAN. To date, performance of the management of Indonesian production forests are discouraging. The concession areas, timber production and employment have been decreasing over time. To concern on these matter and to improve management, a research was conducted for six years (2008)(2009)(2010)(2011)(2012)(2013) and resulted in recommendations to implement the Multi-System of Silviculture (MSS) systems. Two products were generated in MSS; criteria and indicator to guide the selection of appropriate silvicultural system and supersilvik, a model to develop the best business plans. This paper evaluates and strengthens the recommendations through the simulation of MSS products in PT. Sarmiento Parakantja Timber (Sarpatim), Central Kalimantan, Indonesia. Various data variables were used, such as thematic maps of forest areas, data of stand, materials, equipments, labors, finances and incomes. Data were processed in a variety of formulations which were connected to each other in model systems to produce a variety of outcomes, such as production, finance, employment and tax contributions. Results offer four options to improve PT. Sarpatim performance, one of which is the best choice. Compared to the former business model under limited silvicultural systems, MSS projected an increase in the use of land, timber production and employment by 151-753%. Implementing MSS will provide a better and healthier finance for company with an increase of NPV up to 193%; as well as for government tax revenues with an increase up to 308%. This MSS case study strongly suggests using the new theory that the management of production forests is a land and plant-based enterprises, which should put the land as the major capital and silvicultural aspects as the driving engine for production. The policy makers should be able to use these results as a reference in implementing MSS widely as part of Sustainable Forest Management (SFM) practices.

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A framework to optimize the restoration and retention of large mature forest tracts in managed boreal landscapes

Cited by 12 publications

References 61 publications

Structural diversity and dynamics of boreal old-growth forests case study in Eastern Canada

Structural diversity and dynamics of boreal old-growth forests case study in Eastern Canada

Conserving woodland caribou habitat while maintaining timber yield: a graph theory approach

Implementation of Multi-System Silviculture (Mss) to Improve Performance of Production Forest Management: A Case Study of Pt. Sarpatim, Central Kalimantan

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