Forest Management Planning in Mixed-Species Forests

Pretzsch, Hans; Knoke, Thomas

doi:10.1007/978-3-662-54553-9_10

Cited by 4 publications

(7 citation statements)

References 56 publications

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“…An increase in the BTF may be particularly beneficial if it leads to higher biodiversity 16 , 60 . Thus, rather than a complete conversion from needle-leaved to broad-leaved-based forests, a more moderate increase in BTF preserving species diversity may perform better across various sustainability indicators 14 . Such a moderate increase would still have a substantial impact on LST, since it decreases approximately linear with the increase of the BTF (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…S5 ). The economic benefits of mixed forests can also be higher than the ones of mono-species forests taking into account that purely coniferous forests are often more susceptible to large-scale natural disturbances 14 . These disturbances can strongly affect ecosystem services including the release of greenhouse gases, reduced protection against natural hazards and a higher risk of decreased timber yields 61 .…”

Section: Discussionmentioning

confidence: 99%

“…We chose the values 10% and 90% for the two scenarios, because pure needle-leaved or broad-leaved forests are relatively rare and hence predictions for values below 10% and particularly above 90% become more uncertain. In addition, we argue that pursuing a natural form of mixed-species forestry provides forest functions and services often to a higher level than monocultures 14 and that disturbances as well as the variety of site characteristics will usually not lead to pure needle-leaved or broad-leaved stands 76 .…”

Section: Methodsmentioning

confidence: 98%

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Increasing the broad-leaved tree fraction in European forests mitigates hot temperature extremes

Schwaab

Davin

Bebi³

et al. 2020

Sci Rep

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Forests influence climate through a myriad of chemical, physical and biological processes and are an essential lever in the efforts to counter climate change. The majority of studies investigating potential climate benefits from forests have focused on forest area changes, while changes to forest management, in particular those affecting species composition, have received much less attention. Using a statistical model based on remote sensing observations over europe, we show that broadleaved tree species locally reduce land surface temperatures in summer compared to needle-leaved species. The summer mean cooling effect related to an increase in broad-leaved tree fraction of 80% is relatively modest (~ 0.3-0.75 K), but is amplified during exceptionally warm periods. The reduction of daily maximum temperatures during the hottest days reaches up to 1.8 K in the Atlantic region and up to 1.5 K in Continental and Mediterranean regions. Hot temperature extremes adversely affect humans and ecosystems and are expected to become more frequent in a future climate. thus, forest management strategies aiming to increase the fraction of broad-leaved species could help to reduce some of the adverse local impacts caused by hot temperature extremes. However, the overall benefits and trade-offs related to an increase in the broad-leaved tree fraction in European forests needs to be further investigated and assessed carefully when adapting forest management strategies. Forests are expected to play an essential role in climate change mitigation as they can generally sequester more carbon than non-forested ecosystems 1-3. In addition, forests affect water and energy fluxes at the earth surface through biogeophysical processes including changes in evapotranspiration, albedo, and surface roughness 4,5. Various observation-based studies have shown that forests, through these biogeophysical processes, either reduce or increase local temperatures depending on location and time of observation 6-9. In contrast to a comparison of forested and non-forested ecosystems, the potential impacts on temperatures of forest management or more generally changes in forest characteristics are less well documented 10-12. Facilitating an increase of the broad-leaved tree fraction (BTF) in forests is a promising management strategy to enhance the provision of ecosystem services and to adapt to climate change 13-16. For example, increasing the BTF can lead to reduced risk of fires, wind throw and bark beetle outbreaks 15,17. However, the potential benefits of broad-leaved trees through their biogeophysical influence on temperature, in particular on extreme temperatures, have not yet been investigated beyond the site-level scale 18 even though changes on extreme temperatures are highly relevant in terms of impacts on humans and ecosystems 19,20. To investigate how an increase in the BTF in Europe would influence local land surface temperature (LST) we linked observed patterns of LST with patterns of the BTF. In contrast to previous studies, we use remote sens...

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 98%

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Increasing the broad-leaved tree fraction in European forests mitigates hot temperature extremes

Schwaab

Davin

Bebi³

et al. 2020

Sci Rep

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“…The concept of sustainability has been modified and updated due, among other reasons, to the changes in the role played by forests in society [66,67]. Besides that, the demand for goods and services coming from forest systems has been continuously increasing [68], meaning that, today, forest management is much more polyhedral (or multi-faceted, according to [69]) than it was three centuries ago, and includes other ecosystem services not contemplated in the original idea of sustainability, such as in the case of biodiversity [70]. Indeed, some authors have recently gone beyond the theory of von Carlowitz and defined forests as a "multifunctional bioeconomic system" [71].…”

Section: Theory Reviewmentioning

confidence: 99%

Sustainability in Forest Management Revisited Using Multi-Criteria Decision-Making Techniques

Ezquerro

Pardos²,

Dı́az-Balteiro

2019

Sustainability

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Since its origins, the idea of sustainability has always been linked to forest management. However, nowadays, sustainable forest management has usually been approached by defining a set of criteria and indicators. This paper aims to address sustainability in forest management including a set of criteria encompassing the most common decisions: whether the stands are even or uneven-aged, and the optimal silviculture that should be applied in each stand. For this purpose, a lexicographic goal programming model with two priority levels has been defined, into which six different criteria are integrated. Each criterion corresponds to a particular pillar (economic, technical, or environmental). Furthermore, also incorporated into the model are the preferences of diverse stakeholders, both for the criteria considered in the analysis and for the most suitable silvicultural alternatives to be applied in each stand. This methodology has been applied to a case study in Spain, and the results show much more attractive solutions than the current forest management planning, allowing the obtainment of multi-aged systems that could be favourable for other ecosystem services.

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“…Forests harbor over half of all terrestrial biodiversity and generate ecosystem services essential to the humankind [1]. Nevertheless, the request for goods and services from forest systems has increased constantly [2]. Consequently, forest management is multifaceted [3] and it targets the supply of a wide range of ecosystem services (ES) that include biodiversity conservation [4,5].…”

Section: Introductionmentioning

confidence: 99%

Combining Tree Species Composition and Understory Coverage Indicators with Optimization Techniques to Address Concerns with Landscape-Level Biodiversity

Botequim

Bugalho

Rodrigues

et al. 2021

Land

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Sustainable forest management needs to address biodiversity conservation concerns. For that purpose, forest managers need models and indicators that may help evaluate the impact of management options on biodiversity under the uncertainty of climate change scenarios. In this research we explore the potential for designing mosaics of stand-level forest management models to address biodiversity conservation objectives on a broader landscape-level. Our approach integrates (i) an effective stand-level biodiversity indicator that reflect tree species composition, stand age, and understory coverage under divergent climate conditions; and (ii) linear programming optimization techniques to guide forest actors in seeing optimal forest practices to safeguard future biodiversity. Emphasis is on the efficiency and effectiveness of an approach to help assess the impact of forest management planning on biodiversity under scenarios of climate change. Results from a resource capability model are discussed for an application to a large-scale problem encompassing 14,765 ha, extending over a 90-years planning horizon and considering two local-climate scenarios. They highlight the potential of the approach to help assess the impact of both stand and landscape-level forest management models on biodiversity conservation goals. They demonstrate further that the approach provides insights about how climate change, timber demand and wildfire resistance may impact plans that target the optimization of biodiversity values. The set of optimized long-term solutions emphasizes a multifunctional forest that guarantees a desirable local level of biodiversity and resilience to wildfires, while providing a balanced production of wood over time at the landscape scale.

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Forest Management Planning in Mixed-Species Forests

Cited by 4 publications

References 56 publications

Increasing the broad-leaved tree fraction in European forests mitigates hot temperature extremes

Increasing the broad-leaved tree fraction in European forests mitigates hot temperature extremes

Sustainability in Forest Management Revisited Using Multi-Criteria Decision-Making Techniques

Combining Tree Species Composition and Understory Coverage Indicators with Optimization Techniques to Address Concerns with Landscape-Level Biodiversity

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