Soil is a home for an unbelievable diversity and abundance of microbial life that is essential for supporting life on our planet.

How soil microbial composition impacts structure and composition of the aboveground plant and animal communities?

In this thesis, the role of plant-mediated soil legacy effects in shaping aboveground plant-insect interactions was investigated.

Soil biodiversity is of great importance for the maintenance of multifunctionality in terrestrial ecosystems.

Organic amendments applied to agricultural fields can partially offset our carbon emissions to the atmosphere and improve the resilience of agriculture to the effects of climate change. Driving these benefits, however, are complex and poorly understood interactions between organic amendment properties,…

The soil ecosystem consists of the largest reservoir of biodiversity on Earth.

The main research question of this thesis was: Can nitrogen cycling on dairy farms on peat soil in the Dutch Green Heart area be improved by adapting management to the nitrogen supply from soil and by using other grassland species and crops without affecting milk production?

Promotor: J.A. van Veen, Co-promotor: E.E. Kuramae

By growing in a soil plants change the biotic and abiotic properties of the soil in which they grow.

Promotores: Prof.dr. H. van Veen & Prof.dr. W. de Boer (Wageningen University)

How presence, abundance and enzymatic activities of AM and EM fungi differently affect soil carbon sequestration processes?

Plants and soils from natural ecosystems harbor great diversity of soil microorganisms, which could potentially contribute to the sustainability of horticulture. The knowledge about using wild plant species and soil from natural ecosystem to improve the crop health will advance the application of ecological…

Promotores: J.A.van Veen, P.L.G.Klinkhamer. Co-promotor: E.E.Kuramae

In this thesis, I focused on studying the above- and belowground interactions of J. vulgaris from a plant-soil feedback (hereafter, PSF) perspective. I investigated the temporal variation of negative PSF and examined the effects of root-associated bacteria on plant performance and aboveground herbiv…

Kunst en vrije tijd, Kunst en vrije tijd

In this PhD study, I aim to deepen our understanding of the influence of major mycorrhizal types, namely arbuscular mycorrhizae (AM) and ectomycorrhizae (EM), on the global soil carbon cycle and their potential distribution changes under future environmental shifts.

The use of N fertilizers has increased worldwide in the past century. While this increased input of N has increased food productivity, it has also contributed to decreases in biodiversity, soil quality and environmental health, including increases in greenhouse gas emissions.

Vinasse is a major by-product generated by the sugarcane biofuel industry. It is a source of microbes, nutrients and organic matter and often it is recycled as fertilizer.

Striga hermonthica, commonly known as witchweed, infests major cereal crops in Sub-Saharan Africa causing severe yield losses and threatening the livelihood of millions of resource poor farmers.

Promotors: Prof.dr. G.R. de Snoo, Prof.dr. G.A. Persoon, Prof.dr.ir. H.H. de Iongh

What are the global relationships between environmental conditions and abundance of distinct types of mycorrhizal fungi in soil and plant roots?

Jan Willem Erisman wilde als kind al dingen beter maken. Als hoogleraar Duurzaamheid en Milieu is hij daarom ook buiten de universiteit actief. Hij staat bekend als de stikstofprofessor: in de media, maar ookin de Tweede Kamer legt hij het stikstofprobleem uit. Recent trad hij toe tot de Europese Soil…

Astronomen, onder wie de Leidse Remo Tilanus, hebben met behulp van de Event Horizon Telescope voor het eerst magnetische velden waargenomen net buiten de waarnemingshorizon van het superzware zwarte gat in het centrum van onze Melkweg. Publicatie in Science.

Het Event Horizon Telescope (EHT)-team, dat de allereerste foto van een zwart gat maakte, heeft vandaag een nieuwe afbeelding gepresenteerd. De afbeelding toont hetzelfde zwarte gat in gepolariseerd licht. Het is voor het eerst dat het astronomen is gelukt om polarisatie – een kenmerk van magnetische…

Onverminderd heeft China de tijd aan zijn kant. De huidige viruscrisis maakt China echter kwetsbaar in de geopolitieke strijd met de VS. Luuk van Middelaar, hoogleraar Europees Recht, verwacht dat de huidige crisis op langere termijn de ambities van Xi alleen maar zullen aanwakkeren.

Promotor: Prof.dr. W.J.G.M. Peijnenburg

Vrouwenkiesrecht, eenheidsworst en gloeilampen: drie ongebruikelijke gevolgen van de Eerste Wereldoorlog. Henk te Velde, historicus en houder van de leerstoel Vaderlandse Geschiedenis, sprak met Scientias.nl over hoe de Eerste Wereldoorlog het (dagelijkse) leven in Nederland beïnvloedde.