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Tag: resilience

When wells run dry our oaks decline, too

How groundwater access impacts the resilience of oaks to drought

Fresh water is essential to all living creatures and humans have become particularly well-versed in using it for both business and pleasure. We use it grow our food, to run our industries and even to flush our toilets in many countries. Much of the fresh water used in the world comes from the groundwater, and the extraction of groundwater is likely to increase more in the future, partly due to droughts. However, a recent study conducted by researchers from the University of Freiburg and published in Scientific Reports shows that extracting the groundwater to water our gardens can cause serious problems to forests growing on the areas from where the water is taken.

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Urban Forests in the light of sustainability transition – kick-off at Urban Forestry Days 2021

Cities need to learn from nature in order to organise themselves. (Vicente Guallart, IAAC) The first day of the Urban Forestry Days 2021 kicked-off on…

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Join us for a virtual excursion during the Urban Forestry Days

Cannot wait for the Urban Forestry Days (March 23-24, 2021) to be out in the forest? Our 1-minute conference trailer invites you on a journey through urban forests and green spaces from Beijing to Bonn.

The two-day collaborative event of integrated activities on Urban Forestry, hosted by the European Forest Institute (EFI), the European Forum on Urban Forestry (EFUF) and the Horizon 2020 CLEARING HOUSE project, brings together advanced practitioners, researchers, sector-leading policymakers, and everyone eager to learn about urban forestry’s latest developments in and beyond Europe. The online conference will be split into two main themes. While Day 1 addresses integrated forest management, Day 2 is themed on urban forests and health infrastructure. Further, there will be a specific focus on Sino-European collaboration. The conference will thus be run in English with Mandarin translations. Join us for lively and interactive talks and register here to secure a virtual seat.

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Life after recovery: how Scots pine trees compensate for drought

Did you know that researchers have linked extreme drought events to losses in forest productivity and widespread tree mortality on every forested continent on earth? As a result of climate change, in the coming decades we expect these drought events to increase in frequency, duration and intensity in many parts of the world, posing an emerging set of challenges at a scale that many contemporary forests have so far not had to deal with. This in turn means that we need to understand how forests respond to, and recover from, such events across a range of both temporal and spatial scales to ensure our forests are resilient to the challenges of a future climate. This understanding must cover everything from how between-tree variability buffers against stand-level change, which tree and stand attributes and management practices confer resilience, how different species growing in different locations respond to similar types of drought and what the long-term implications of these events mean for biodiversity, forest carbon, stand structure and forest growth, amongst many others. In our recent paper “Life after recovery: Increased resolution of forest resilience assessment sheds new light on post‐drought compensatory growth and recovery dynamics” published in the Journal of Ecology (Ovenden et al. 2021), we look at the recovery of trees after drought from a new perspective.

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Forest landscapes as functional networks: Novel approaches to manage for resilience

Article by Marco Mina

Some time ago we discussed how viewing and analyzing forest landscapes as functional complex networks could be a promising approach to increase ecological resilience to global uncertainty. Now, two new studies show how this could be applied in differently structured landscapes.

Our blue marble planet is one single interconnected organism. From plants to pollinators, preys to predators, climate to primary production, Earth’s natural ecosystems have evolved for million years to build complex and balanced interactions. Forest landscapes are also complex ecological networks, which can be depicted in many ways depending on the scale of observation. For example, if we take a look at a satellite image of a rural area (e.g., an administrative region in Germany or in southern Canada), we will immediately recognize patches of forests fragmented by agricultural crops, roads, powerlines or human settlements. In other areas, forest might cover a larger proportion of the land, resulting in a more continuous matrix. In both cases, a series of interconnected relation exists among tree species, stands, and forest patches allowing the maintenance of vital functions of such ecological system.

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Waldwissenschaftler fordern: Waldumbau durch effiziente Bejagung unterstützen

Warum wir eine Neufassung des Bundesjagdgesetzes brauchen

Ein Gastbeitrag von Christian Ammer, Thomas Knoke und Michael Müller

Vor dem Hintergrund der Herausforderungen durch den Klimawandel müssen wir vielgestaltige und anpassungsfähige Wälder aufbauen. Wildeinflüsse können dieses Ziel gefährden. Deswegen hat der wissenschaftliche Beirat für Waldpolitik des Bundesministeriums für Ernährung und Landwirtschaft (BMEL) im Februar 2020 ein Eckpunktepapier zur Waldstrategie 2050 veröffentlicht. In diesem wird benannt, welche Regelungen bei der Reform des Bundesjagdgesetzes geändert werden müssten, um den drängenden Aufgaben nachkommen zu können. Wir stimmen der Analyse und den Empfehlungen des wissenschaftlichen Beirats aus waldwissenschaftlicher Sicht im Wesentlichen zu und fordern die Politik auf, die Empfehlungen ihres Beirats zu berücksichtigen.

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Kleine Superhelden im Kampf gegen das Eichensterben

In Deutschland gibt es sie schon seit der Antike, Hölderlin und Herder haben über sie gedichtet, und seit dem 18. Jahrhundert gilt sie als der “deutsche Nationalbaum”: Zweifellos hat die Eiche für die Menschen in Deutschland eine besondere Bedeutung. Auch im Klimawandel wird ihr eine wichtige Rolle zugeschrieben. Gleichzeitig ist sie vor allem durch Schädlinge Risiken ausgesetzt, die ihre Widerstandsfähigkeit gefährden. Wie man dieses “Eichensterben” mit natürlichen Mitteln bekämpfen kann, untersucht seit Kurzem ein neues Projekt von Wald und Holz NRW, das von der Fachagentur Nachwachsende Rohstoffe e.V. (FNR) gefördert wird. Auch das European Forest Institute gehört zu den Projektpartnern. Ich habe Bernhard Tapken, der im Projekt “Eichenresilienz” arbeitet, einige Fragen gestellt.

Was ist das Ziel des Projektes “Eichenresilienz”?

Das Ziel des von Wald und Holz Nordrhein-Westfalen geleiteten Projektes ist es die Widerstandsfähigkeit der heimischen Eichenarten, Stiel- und Traubeneiche, zu untersuchen und Wege aufzuzeigen diese natürliche Resilienz zu fördern. Wir untersuchen dabei, wie man die sogenannte „Eichenfraßgesellschaft“ erfolgreich mit natürlichen Gegenspielern bekämpfen kann.

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Navigating the World of Resilience

As the Resilience Programme of the European Forest Institute, we are looking for evidence-based ways to improve resilience in the European forests. However, a brief discussion in the office revealed that even among our staff there are almost as many interpretations of resilience as there are staff-members. We needed to have a clearer understanding on what resilience means in the context of forestry.

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