As a response to global climate change, which is putting increased pressure on most ecosystems, national and international agreements aim at creating forests that are productive, resilient to climate change, and that store carbon to mitigate global warming. However, these aims are being challenged by increased tree mortality rates and decreased tree growth rates in response to increased incidence of drought. The summer drought of 2018 alone resulted in 100 million m3 of dead trees in Europe, equivalent to a loss of approximately 3.5 billion euros wood.
Therefore, the challenge is to develop climate-smart forestry (CSF) in order to sustain or increase forest productivity, forest resilience and forest carbon storage under climate change. Currently, there is a lack of crucial insights into the effects of forest management on the growth and survival of trees, and on carbon storage in both trees and forest soils, particularly under increased incidence of drought. We test the hypothesis that CSF aims can be achieved via controlling stand density by applying intermediate levels of tree harvest intensity. The main aim of this proposed project is to quantify the effects of drought and management-controlled stand density on forest productivity, forest resilience, and carbon storage in trees and soils.

Temperate food forests have gained attention over the last decade because of their potential to contribute to restoration of biodiversity and carbon storage. So far scientific research has been limited to case studies and identifying socio-economic values. In this project, we aim to understand how food forestry affects belowground biodiversity and functioning (including carbon storage) compared to other types of land use (e.g., arable farming, grassland). We collect field observations and use controlled experiments. This project is part of a larger TKI program, where also aboveground biodiversity and earning models of food forests are investigated. For information see: https://www.wur.nl/nl/Onderzoek-Resultaten/Onderzoeksinstituten/Environmental-Research/Projecten/Wetenschappelijke-bodemvorming-onder-de-voedselbosbouw-1.htm

The Maasheggen area is a unique cultivated landscape in the Netherlands (near Boxmeer, province Noord-Brabant) and has been designated as a UNESCO biosphere reserve (https://www.maasheggenunesco.com/en/). Its mosaic of hedgerows, small arable fields and meadows make this a very interesting area to study the effects of land use and landscape elements on functional biodiversity and ecosystem services.

Linking Ecology, Molecular Biology and Bioinformatics in plant epigenetic research

This project is a component of the EpiDiverse MSCA-ITN European training network. DNA methylation variants can arise spontaneously, they can be under genetic control or they can be induced by environments. In plants, some DNA methylation variants are stable across many generations whereas other variants are very transient. A good understanding of the transgenerational dynamics of DNA methylation variants is essential to understand their impact on heritable traits and their effect on adaptation.

This project is a component of the EpiDiverse MSCA-ITN European training network. In long-lived sessile organisms such as trees, phenotypic plasticity is an important requirement for successful persistence in changing or variable environments. Epigenetic mechanisms have the potential to mediate long-term plastic responses to environmental change. However, the importance of epigenetic mechanisms such as DNA methylation as regulators of adaptive plasticity is not well known.

Through association with beneficial bacteria and fungi, plants can express increased growth via improved nutrient uptake, disease resistance, and abiotic stress tolerance.

Urban environments are ever expanding and differ markedly from natural and rural ecosystems. Cities are good test cases for the adaptive capacity of plants and animals in a rapidly changing world.

Through association with beneficial bacteria and fungi, plants can express increased growth via improved nutrient uptake, disease resistance, and abiotic stress tolerance. Such microbe-mediated plant traits could be important for ecological adaptation and crop improvement, but natural or artificial selection can only shape these traits if genetic variation exists

Billions of microorganisms live and die in the soil beneath our feet, affecting soil carbon storage and its release to the atmosphere. This project investigates how viruses drive bacterial death and the fate of bacterial remains, to better understand how soil can contribute to maintaining a healthy climate.