Marc Hanewinkel

University of Freiburg | Albert-Ludwigs-Universität Freiburg · Chair of Forestry Economics and Planning

Reforestation of tropical forests is crucial to mitigate the climate crisis and restore ecosystems. However, past efforts have been criticized for establishing monoculture timber plantations with exotic tree species. Close-to-nature (CTN) practices aim to minimize negative forest management impacts on forests ecosystems by mimicking natural dynamic...

Key message We applied the generalized algebraic difference approach (GADA) to develop dynamic models of height growth for pedunculate oak ( Quercus robur L.) in Serbia. According to the dominant heights, the studied region comprises some of Europe’s most productive sites for pedunculate oak. Therein, we have generated a map showing the current sit...

Strong winter wind storms can lead to billions in forestry losses, disrupt train services and amount to millions of Euro spend on vegetation management alongside the German railway system. Therefore, understanding the link between tree fall and wind is crucial. Existing tree fall studies often emphasize tree and soil factors more than meteorology....

Tree fall onto railway lines puts passengers at risk and causes large economic losses due to disruption of train services and damage to infrastructure. Railway lines in Germany are vulnerable to tree fall because of the large number of trackside trees that exist in that country with approximately 70% of all railway lines being tree-lined. In this p...

Key message Drought severely worsened till 2100 and eventually outplayed growth-enhancing CO 2 fertilization turning productivity gains into losses for beech and fir. Most scenarios generated notable losses in profitability but economic tipping points were later than for productivity due to lag effects related to discounting. Time mixture of fir an...

Poplar short rotation coppice (SRC) systems are important for biomass production and for short-to medium-term carbon (C) sequestration, contributing to a low-carbon bioeconomy and thus helping to mitigate global warming. The productivity and profitability of these plantations are, however, challenged under restrictive irrigation associated with cli...

Central America hosts many key biodiversity areas (KBAs), areas which represent unique and irreplaceable ecosystems of global importance for species conservation. However, large extents of these areas are not under legal protection and could be threatened by pressures from land use change (e.g., deforestation and agricultural expansion), high human...

Tropical reforestation is among the most powerful tools for carbon sequestration. Yet, climate change impacts on productivity are often not accounted for when estimating its mitigation potential. Using the process-based forest growth model 3-PGmix, we analyzed future productivity of tropical reforestation in Central America. Around 29°C mean annual...

Reforestation of tropical forests is crucial to mitigate the climate crisis and restore ecosystems. However, past efforts have been criticized for establishing monoculture timber plantations with exotic tree species. Close-to-Nature (CTN) practices aim to minimize negative forest management impacts on forest ecosystems by mimicking natural dynamics...

Les risques naturels menacent les écosystèmes forestiers, et cette menace s’accentue sous l’effet du changement climatique. La question de l’assurance forestière devient alors centrale. Dans le secteur forestier, l’assurance peut être de deux types. Les propriétaires forestiers peuvent souscrire un contrat d’assurance auprès d’un assureur pour se c...

This article aims to compare different forest adaptation strategies based on stand diversification from an economic perspective in order to reduce extreme drought-and windstorm-induced risks of dieback. We tested the efficiency of the strategies individually and then combined through a simulation study in which we evaluated the financial loss and t...

Tropical reforestation is an important strategy to mitigate the global climate crisis through the sequestration of CO2. Together with increasing CO2 prices, carbon storage becomes increasingly relevant for commercial re-forestations. Due to higher productivity, mixed-species reforestations have been suggested for carbon plantings. Yet, current stud...

Key message By calibrating and validating a forest growth model for seven species in Germany and coupling it with a wind damage simulator, we specifically estimated the impact of wind damage on the net present value of Norway spruce and European beech in mixture and monoculture. Under risk, the net present value of spruce managements saw the sharpe...

Tropical forests represent important supporting pillars for society, supplying global ecosystem services (ES), e.g., as carbon sinks for climate regulation and as crucial habitats for unique biodiversity. However, climate change impacts including implications for the economic value of these services have been rarely explored before. Here, we derive...

Robust decision-making in forestry seeks solutions that reduce the risk of environmental damage and economic losses, which matters for designing forest adaptation measures. We propose a state-of-the-art methodology to identify robust drought adaptive strategies. First, we used a process-based model with an ensemble of climate change scenarios to si...

Depending on wind speed and wind field, storms generate small- to large-scale disturbances, which affect forests more than other ecosystems because of the height and extent of forests. Wind is the most significant disturbance agent for forests. In Europe, western, central, and northern areas have the greatest storm damage in terms of growing stock...

Large-scale reforestations in the tropics have become an important strategy to mitigate the global climate crisis through the sequestration of CO2. Mixed-species reforestations have been suggested for carbon plantings. In the context of commercial plantation forestry, the establishment of mixed-species plantations should be addressed under the cons...

Tropical forest plantations play an important role in meeting global wood demand. While research has highlighted the ecological potential of mixed-species plantations, studies on the economic viability and management of such plantations are largely missing in the context of tropical plantation forestry. In this study, we estimated the economic pote...

Native tree species and species mixtures are key elements for biodiversity conservation by forest plantations. Yet, introduced species planted in monoculture still dominate plantation forests in many regions around the world and especially in the tropics. In Costa Rica and Panamá, Tectona grandis (teak) is the most planted species, occupying 49% an...

Forests cover approximately one-third of Germany’s territory. They are among the most productive forests in Europe and in a position to contribute considerably to climate change mitigation. Germany has set national targets for climate mitigation via forests and measures such as conversion towards mixed and climate-adapted forests; a stronger contro...

Forests play a key role in a bio-based economy by providing renewable materials, mitigating climate change, and accommodating biodiversity. However, forests experience massive increases in stresses in their ecological and socioeconomic environments, threatening forest ecosystem services supply. Alleviating those stresses is hampered by conflicting...

Key message We applied a modified forest gap model (ForClim) to depict changes in stand water transpiration via density reduction as a forest adaptation strategy. This approach is the key to analyzing the ecological resilience to drought, stress-induced mortality, and economic efficiency of managed mixed forest stands in Central Europe. The results...

Spatial soil information in forests is crucial to assess ecosystem services such as carbon storage, water purification or biodiversity. However, spatially continuous information on soil properties at adequate resolution is rare in forested areas, especially in mountain regions. Therefore, we aimed to build high-resolution soil property maps for pH,...

The tropical forests of Central America serve a pivotal role as biodiversity hotspots and provide ecosystem services securing human livelihood. However, climate change is expected to affect the species composition of forest ecosystems, lead to forest type transitions and trigger irrecoverable losses of habitat and biodiversity. Here, we investigate...

Extreme droughts are expected to increase in frequency and severity in many regions of the world, threatening multiple ecosystem services provided by forests. Effective strategies to adapt forests to such droughts require comprehensive information on the effects and importance of the factors influencing forest resistance and resilience. We used a u...

The scientific literature contains contrasting findings about the climate effects of forest bioenergy, partly due to the wide diversity of bioenergy systems and associated contexts, but also due to differences in methods. The climate effects of bioenergy must be accurately assessed to inform policy‐making, but the complexity of bioenergy systems an...

Forest disturbances significantly affect the global carbon cycle by, for example, vegetation loss or changing forest phenology. However, the lack of historical disturbance events constitutes a challenge for in-depth temporal and spatial analysis. Available remote sensing time series and combined climate data may have great potential to quickly and...

Ceccherini et al.1 reported an abrupt increase in harvested forest—in terms of both biomass and area—in Europe from 2016, and suggested that this reflected expanding wood markets encouraged by the bioec- onomy policies of the European Union (EU). They used Global Forest Watch2 and GlobBiomass3 data together with an analysis that sought to remove na...

For the first time, an economic analysis of a fully simulated forest transformation process from even-aged to uneven-aged stand structure using natural regeneration was performed using an individual tree growth simulator. A comparison to a ‘business as usual’ management approach (i.e. age-class scenario) was also made. Norway spruce (Picea abies (L...

• Key message The browsing level of oak (Quercus petraea and Quercus robur) and fir (Abies alba) provided only a rough estimate of the expected regeneration success. Thus, it cannot be recommended as a standard measurement to predict forest development, unless the number of saplings and the height of those saplings are considered. • Context Browsin...

Native tree species and species mixtures are key elements for biodiversity conservation by forest plantations. Yet, introduced species planted in monoculture still dominate plantation forests in many regions around the world and especially in the tropics. In Costa Rica and Panam´a, Tectona grandis (teak) is the most planted species, occupying 49% a...

As topography is a key factor controlling soil genesis and strongly influences physical and chemical soil properties, terrain attributes are routinely used in digital soil mapping to spatially predict soil properties. Forests on flysch sediments along the northern slopes of the Swiss Alps often have a strong microrelief. The dominant soil types are...

Global warming poses great challenges for forest managers regarding adaptation strategies and species choices. More frequent drought events and heat spells are expected to reduce growth and increase mortality. Extended growing seasons, warming and elevated CO2 (eCO2) can also positively affect forest productivity. We studied the growth, productivit...

With global warming, the growing season is expected to increase for many regions of the Northern Hemisphere. It is therefore important to represent this mechanism in process-based forest growth models used in climate change impact analysis. 3-PG (Physiological Principles Predicting Growth) is a widely used process-based model that operates on stand...

The decision on how to manage a forest under climate change is subject to deep and dynamic uncertainties. The classic approach to analyze this decision adopts a predefined strategy, tests its robustness to uncertainties, but neglects their dynamic nature (i.e., that decision-makers can learn and adjust the strategy). Accounting for learning through...

Forestry professionals’ attitudes towards risk and uncertainty under climate change, together with their perception about suitability of adaptation strategies, were investigated in Central Europe. We applied an original methodology based on lottery choices to quantify their risk and uncertainty attitude, combined with a questionnaire study about th...

Forest management and disturbances are among the main drivers of changes in forest dynamics in temperate ecosystems. To promote and maintain forest multifunctionality and species persistence in the landscape, it is critical that the interactions between these factors and forest biodiversity are disentangled. Still, the relationships between disturb...

Central American forests are global hotspots of biodiversity and contribute to human livelihood through the provision of services like carbon sequestration, timber production and scenic beauty for ecotourism. While a considerable ecological and economic value is bound to these ecosystems, few studies so far have investigated climate change impacts...

Integrated forest management (IFM) can help reconcile critical trade-offs between goals in forest management, such as nature conservation and biomass production. The challenge of IFM is dealing with these trade-offs at the level of practical forest management, such as striving for compromises between biomass extraction and habitat retention. This p...

Supplementary data to https://doi.org/10.1016/j.jenvman.2020.110670.

Retention forestry, which retains a portion of the original stand at the time of harvesting to maintain continuity of structural and compositional diversity, has been originally developed to mitigate the impacts of clear‐cutting. Retention of habitat trees and deadwood has since become common practice also in continuous‐cover forests of Central Eur...

Retention forestry implies that biological legacies like dead and living trees are deliberately selected and retained beyond harvesting cycles to benefit biodiversity and ecosystem functioning. This model has been applied for several decades in even-aged, clearcutting (CC) systems but less so in uneven-aged, continuous-cover forestry (CCF). We prov...

Silvicultural adaptations throughout history resulted in an increasing mitigation efficiency towards storm risk, quantifiable through an increasing conditional value at risk and decreasing average damage loss. Recently recommended silvicultural systems for spruce stands in Central Europe, like the group selection system, showed the highest mitigati...

Forest biodiversity underpins social welfare by preserving ecosystem multifunctionality and the provision of ecosystem goods and services. Still, the social value of biodiversity is not adequately incorporated into forest management and decision support models. This study proposes a novel approach for defining socially optimal biodiversity levels,...

Forest biodiversity underpins ecosystem functioning and the provision of multiple ecosystem goods and services that are essential to human well-being. Still, the social value of biodiversity is rarely taken into account in the management of forest resources. Forest biodiversity is a public good and, as such, it complicates the process of internaliz...

The provision of forest biodiversity remains a major challenge in the management of forest resources. Biodiversity is mostly considered a public good and the fact that societal benefits from biodiversity are private information, hinders its supply at adequate levels. Here we investigate how the government, as a forest owner, may increase the biodiv...

The loss of biodiversity in temperate forests due to combined effect of climate change and forest management poses a major threat to the functioning of these ecosystems in the future. Climate change is expected to modify ecological processes and amplify disturbances, compromising the provisioning of multiple ecosystem services. Here we investigate...

The term Industry 4.0 (I 4.0) has been shaping the discussion about increasing digitization in industrial and service value chains for several years. The concepts and technologies driving the fourth industrial revolution are increasingly moving to focus on forestry’s practice and research. They both are attempting to develop new solutions for the f...

Stürme erzeugen je nach Windstärke und Windfeld kleine bis großflächige Störungen, wovon Wälder wegen ihrer Höhe und Ausdehnung am stärksten betroffen sind. In West-, Mittel- und Nordeuropa ereignen sich in Bezug auf das betroffene Holzvolumen die größten Sturmschäden, zudem stellt Wind den bedeutendsten Störfaktor für Wälder dar. Fichten sind in M...

With this article we try to give an extensive overview of the development of the Faustmann model. Goal of the article is to outline and discuss the basic assumptions behind the Faustmann formula and describe the developments of the Faustmann model with regard to main trends and changes in forestry throughout history.

This study aims to project changes in soil carbon stocks under different frequencies of storm and climate change scenarios. We calibrated and validated the dynamic process-based soil carbon model "Yasso07" for a wind-throw prone forest area of 1.4 M ha in the State of Baden Württemberg in central Europe, Germany. We fitted climate-biomass models us...

Forest biodiversity underpins ecosystem functioning and the provision of multiple ecosystem goods and services that are essential to human well-being. Still, the social value of biodiversity is rarely taken into account in the management of forest resources. Forest biodiversity is a public good and, as such, it complicates the process of internaliz...

Title of the paper: The Faustmann model – a basis of forest economics for 170 years. With this article we try to give an extensive overview of the development of the Faustmann model (cf. Figure 1). Goal of the article is to outline and discuss the basic assumptions behind the Faustmann formula and describe the developments of the Faustmann model wi...

The term Industry 4.0 (I 4.0) has been shaping the discussion about increasing digitization in industrial and service value chains for several years. The concepts and technologies driving the fourth industrial revolution are increasingly moving to focus on forestry’s practice and research. They both are attempting to develop new solutions for the f...

There is an ongoing debate regarding segregated and integrated approaches to biodiversity conservation in Central European forests. The ecosystem services provisioning of timber, recreation and carbon sequestration are, however, also of great importance. The existence of manifold objectives makes it difficult to find an appropriate strategy in fore...

The Paris Agreement and the latest IPCC Assessment Report (2018) emphasize urgent and efficient actions for climate change mitigation. This means that we must rapidly reduce global greenhouse gas emissions and, therefore, also the use of fossil-based raw materials, energy and products. Climate Smart Forestry (CSF) is one approach for achieving thes...

In Europe, intensive forest management has severely compromised the habitat of forest insects, especially saproxylic beetles, due to the removal of deadwood and veteran trees. The loss of insect diversity may disrupt ecosystem functioning and affect the provision of important ecosystem goods and services in the future. Here we propose a novel appro...

The objective of this study is to examine and demonstrate how the land expectation value (LEV) by Faustmann changes due to the dynamic development in timber harvesting technology, labor costs and timber prices based on historical data of the last century. With this approach, we challenge Faustmann's assumption of stable conditions saying that the c...

This presentation is based on an ongoing research to select and test potential indicators for measuring a Green Transformation (GT) in the land use sector of Costa Rica. We use information from policy documentation to have a preliminary selection of indicators as significant correlated indicators (SCI). The list of SCI was refined by analyzing the...

Promoting the maintenance of biodiversity in managed forests should take into account economic efficiency of conservation plans. Therefore, novel economic valuation schemes must be developed in order to support conservation programs and mitigate biodiversity loss. Here, we assess the economic implications of retention forestry practices and create...

https://www.efi.int/publications-bank/oumengxunhuanshengwujingjizhane-fazhanzhilu

European temperate and boreal forests sequester up to 12% of Europe's annual carbon emissions. Forest carbon density can be manipulated through management to maximize its climate mitigation potential, and fast-growing tree species may contribute the most to Climate Smart Forestry (CSF) compared to slow-growing hardwoods. This type of CSF takes into...