For a first time the atlas maps the soil biodiversity of the entire planet, and provide s comprehensive analysis of human-induced threats to soil organisms and soil functioning, facilitating development of new policies to protect soil and soil organisms.

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?

We will study how inoculation of former arable land with soil (including the microbiome, soil fauna and seeds/rhizomes of ground flora) from old forests along with planting targeted tree species mixtures will improve productivity and more rapidly restore forest-adapted communities and ulttimately result…

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.

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

Science, Institute of Environmental Sciences (CML)

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

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

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

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

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…

We examine how soil-derived legacy effects of plants structure natural ecosystems, determine aboveground plant insect interactions, and how we can use soil legacy effects to restore degraded ecosystems.

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…

Archaeobotanic research by prof. dr. C. Bakels and students on agriculture.

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.

Which compounds and microorganisms that live near and inside plant roots are beneficial? Can we use this knowledge to improve the health and growth of crop plants?

We examine how soil inoculation influences aboveground organisms (i) directly, and indirectly via (ii) its effects on plant chemistry or volatile emission, or via (iii) mediating the effects of belowground pathogens on aboveground organisms via the shared plant.

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.

The present investigation aims at exploring whether the instruction provided at secondary schools in the capital meets the requirements of Communicative Language Teaching and whether the aims of improving learners’ communicative proficiency are met.

The ultimate aim of the project is to find out whether there are such things as

Like any language, the natural sign languages (henceforth: SLs) of deaf communities differ from each other in their grammars and lexicons. A growing number of studies indicates that SLs make use of the gestures of hearing speakers to build linguistic structure. This implies that variation and similarities…

This collaborative research group (CRG) facilitates the synergies of researchers engaged with African languages and documentation of texts conducted in East Africa, paying particular attention to ‘endangered archives’ and ‘endangered languages’.

This project explores how Muslim authorities and writers use Russian to transmit Islamic contents, and whether this leads to a specific

Soil bacteria can produce a wealth of antibiotics that are new to us, claims Gilles van Wezel, Professor of Molecular Biotechnology at the Institute of Biology Leiden. His research group has developed a method that can rapidly identify and produce these unknown compounds.

Language offers new insights into our history, cultural differences, migration, and the way in which our brain processes information. This knowledge can in turn help us understand what it means to be human, as well as opening the way to many practical applications. In order to realise these goals, linguists…

The Academic Language Centre organises language courses for companies, government agencies, private clients, and students and staff members of Leiden University.

Music from a compostable cello, photographs and scents of fungi and a woven tapestry. With her upcoming multimedia project Super Organism, visual artist Suzette Bousema enables people to experience the underground fungal network with all their senses. Environmental scientist Nadia Soudzilovskaia and…

In the specialisation in Modern Languages you will explore the structure, acquisition, history and use of one or more of these five languages in depth: Chinese, English, French, German and/or Italian.

Languages of The Hague is a collection of columns on languages and language which were published between 2016 and 2018 in the weekly newspaper Den Haag Centraal.

This proposal aims at the construction of a comprehensive and authoritative scientific grammar for Dutch and Frisian in the form of a virtual language institute: het Taalportaal/the Language Portal.

Language connects us! We are here to help you! The Academic Language Centre (ATC) is the language centre of Leiden University. As the oldest university language centre in the Netherlands, we offer language courses in a wide range of languages, both for beginners and advanced students. All courses are…

From the smallest level of interaction among families and close friends, over the meso-level of schools, shops, churches, religious communities and companies, to the highest level of nation-states and international organisations: Language Policy and Planning (LPP) is everywhere!

On the 17th of January, Sarah Von Grebmer Zu Wolfsthurn successfully defended a doctoral thesis. The Leiden University Centre for Linguistics congratulates Sarah on this achievement!

French Language and Linguistics at Leiden University offers a wide array of courses covering theoretical and applied linguistics, including language acquisition, syntax, and semantics.

I am Nargess Asghari. I came to the Netherlands in 2017 to study Linguistics at Leiden University. I wrote my pre-master’s and master’s theses on Iranian Sign Language and Berbey Sign Language (an emerging family sign language in the village of Berbey, Mali), respectively, under the supervision of Dr.…

English Language and Linguistics at Leiden University focuses on English language usage and linguistics around the world, including in countries where English is spoken as a second language or as part of a mixed language.

Like any language, the natural sign languages of deaf communities differ from each other in their grammars and lexicons. A growing number of studies indicates that sign languages make use of the gestures of hearing speakers to build linguistic structure. This implies that variation and similarities…

Chinese Linguistics at Leiden University offers you an excellent opportunity to benefit from our long-standing expertise in Chinese linguistics

The Academic Language Centre Leiden offers Arabic language courses at various levels, an intensive summer course and tailor-made Japanese language training. The courses are practical in nature: focusing on the use of the language. More information can be found here >

The Academic Language Centre Leiden offers Arabic language courses at many different levels, an intensive summer course and customised Arabic language training. The courses are practical in nature: focusing on the use of the language. More information can be found here >