400 search results for “nitrogen deposition” in the Public website
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Nitrogen deposition elements through the food web – impacts on butterflies and moth species
Nitrogen deposition does not only affect plant biodiversity, but also strongly affects the composition of the remainder of the food web, through the changes in plant composition. In an unprecedented analysis of population changes of butterfly and moth species, an international research team including…
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Nitrogen experts suggest switching from deposition to emission policy
In an essay Professors Jan Willem Erisman (Leiden University), Chris Backes (Utrecht University) and Wim de Vries (Wageningen University) suggest amending nitrogen policy in the Netherlands. They call for a shift from a deposition to an emissions policy, with sectors responsible for reducing their own…
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Armin Cuyvers on nitrogen policy following Timmermans' visit to The Hague
There is no time to lose when it comes to repairing damage to nature. For that reason and to show that the European Commission is neither a ‘bogeyman’ nor an enemy, European Commissioner Frans Timmermans came to the Dutch House of Representatives to talk with Caroline van der Plas, leader of political…
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Soil and crop management options to improve nitrogen cycling on dairy farms on peat soil
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?
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With these small adjustments we can reduce nitrogen loss in peat meadows
Relatively simple adjustments can reduce nitrogen losses on dairy farms in peatland areas. That’s the conclusion of the PhD research by by Leiden environmental scientist Jeroen Pijlman at the Louis Bolk Institute. Protein-poor grass species and narrow-leaved plantain in the grassland can limit nitrogen…
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Nitrogen professor hands over book to nitrogen minister
Strengthening nature and at the same time investing in future-proof agriculture. That is the task of the Minister for Nature and Nitrogen, Christianne van der Wal. It is also the lifework of Leiden professor Jan Willem Erisman. He has been researching nitrogen for his entire career and has shown that…
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Impact of nitrogen fertilization on the soil microbiome and greenhouse gas emission
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.
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imaging of spin waves and magnetic phase transitions with nitrogen-vacancy centers in diamond
The elementary excitations of magnets are called spin waves, and their corresponding quasi-particles are known as magnons. The rapidly growing field of Magnonics aims at using them as information carriers in a new generation of electronic devices, (almost) free of electric currents.
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Lab coats off and rain boots on: students do research in the polder
The Vrouw Vennepolder near Oud Ade has been transformed into the Polderlab. Scientists and students from Leiden University, together with farmers and citizens, investigate how to manage peatland in a sustainable and profitable manner. A great opportunity for students to experience how scientific knowledge…
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What can you do to help solve the nitrogen crisis?
This semester we again organize the elective Nitrogen and Sustainability for 36 master students mainly from Industrial Ecology and Governance of Sustainability. The course helps the students to understand the complexity of the Dutch nitrogen crisis and the role different stakeholders play.
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Beyond the Safe Space: LUGO Podcast Miniseries
These podcast episodes were written for the Green Office’s Spring Podcast competition and miniseries 'Beyond the Safe Space', on the theme: the Planetary Boundaries, which took place between the months of March-May 2023.
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How a game can show that working together is essential in the nitrogen crisis
The Netherlands is embroiled in a complex nitrogen crisis. Berent Baris wants to use his NitroGenius game to demonstrate the complexity of this crisis.
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European law takes precendence over Dutch law in nitrogen issue
Statements made by Caroline van der Plas about nitrogen emissions and European law are incorrect: Armin Cuvyers on Dutch radio EenVandaag programme’s item ‘fact or fiction’.
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Dutch cabinet considers legal coercion towards provinces in nitrogen strategy
At present, the cabinet still maintains that all provinces are motivated to cooperate with the sensitive issue of the nitrogen strategy. However, there are major concerns that the political landscape will look very different once the elections for the Provincial Councils on 15 March have been held.
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Possible impact of Dutch provincial council elections on nitrogen plans
These might be ‘just’ provincial council elections in the Netherlands, but the outcome on 15 March could have serious consequences for how the country is governed. Conflicts between the government in The Hague and the provinces, and tension within the Dutch cabinet, might be looming. On 1 July, every…
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Nitrogen crisis: Rapid, effective intervention in three specific regions could create breathing space
The new Dutch government must act quickly to take rapid, far-reaching measures in three specific regions to tackle nitrogen emissions. This will create the space for a long-term strategy to deal with other urgent problems and the knot of obligations that the state will need to untangle. These are the…
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New map of the Netherlands shows where nitrogen reduction will be most effective
By reforming agriculture in targeted areas, we can protect the Natura 2000 areas much more effectively. This is what Jan Willem Erisman of Leiden University and Ton Brouwer of Gispoint consultancy write in a new report. They have created a special, nitrogen map of the Netherlands that shows the areas…
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Will the new plans steer us out of the nitrogen crisis? Expert Jan Willem Erisman explains
They were eagerly awaited: four letters from five ministers that should provide clarity on how to get us out of the nitrogen crisis. Nitrogen expert Jan Willem Erisman explains the plans. And says whether they will get us out of the nitrogen crisis.
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Nitrogen report: Nitrogen expert Jan Willem Erisman identifies pluses and minuses
On 5 October, mediator Johan Remkes presented his report on the nitrogen crisis and what he thinks is the best way forward. Leiden University professor and nitrogen expert Jan Willem Erisman responds to Remkes’s recommendations. ‘It’s a step in the right direction.’
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Mission successful: deposits on small plastic bottles
After years of lobbying by environmental activists, a deposit scheme for small plastic bottles is to be introduced on 1 July 2021. One of the leaders in the fight is alumnus Merijn Tinga. The university will have collection points for plastic bottles and is also supporting the Plastic Spotter citizen…
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Leiden Mayor Lenferink gets his feet dirty for opening Polderlab Oud Ade
On Thursday 9 September, the mayor of Leiden officially launched a unique ten-year research project in the polder near Oud Ade. During a festive opening in the countryside, he and all the parties involved ceremoniously planted the first trees. Because one thing is certain: the traditional grass landscape…
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'Better to take action today, than to deal with the damage tomorrow'
It’s better to cut our nitrogen emissions now than to solve the consequences later at great expense. That’s the lesson we can learn from the Dutch nitrogen crisis, according to nitrogen expert Jan Willem Erisman. In Science, he shares this lesson with other countries. According to Erisman, we should…
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Rogier Kegge on important provincial elections issue: nitrogen emissions
Dutch provinces must finalise their plans this summer to meet the government's targets on nitrogen emissions. Can the outcome of the provincial elections this week still change nitrogen policy? The NOS spoke about this issue with various parties including Rogier Kegge, assistant professor in administrative…
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Jan Willem Erisman on the nitrogen crisis: 'The measurement model works, but the minister is setting reduction targets that are too high'
Opponents of drastic nitrogen measures argue that the nitrogen calculation model is not reliable enough. Nitrogen professor Jan Willem Erisman: 'It is now much more important to discuss the choices we make on the basis of the outcome. The differences are much bigger than the uncertainties in the mod…
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‘Give farmers more freedom in how they reduce nitrogen’
In his inaugural lecture Professor of Environmental Sustainability Jan Willem Erisman calls for local solutions that give people more freedom in how they meet environmental, nature and climate goals. This would allow farmers to come up with their own solutions to the nitrogen problem. The idea ties…
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Jingjing Cao
Faculteit Archeologie
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Sacrificial Landscapes
Cultural biographies of persons, objects and 'natural' places in the Bronze Age of the Southern Netherlands, c. 2300-600 BC.
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Economies of Destruction
How the systematic destruction of valuables created value in Bronze Age Europe, c. 2300-500 BC
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Rogier Kegge in ‘de Volkskrant’ on the nitrogen crisis and the construction project exemption
Rogier Kegge, Assistant Professor at the Institute of Public Law of Leiden University, was interviewed by Dutch newspaper de Volkskrant in response to the recent recommendations by Johan Remkes on how to approach the nitrogen crisis.
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Hoekstra puts unity of Dutch Government at risk with nitrogen comments
Politicians in The Hague were in for an unpleasant surprise when the interview with CDA politician, and also current Dutch Foreign Affairs Minister, Wopke Hoekstra was published. Especially Hoekstra’s suggestion to let go of the Government’s target to reduce the amount of nitrogen by 2030 raised some…
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Assessing global regionalized impacts of eutrophication on freshwater fish biodiversity
Freshwater biodiversity has been threatened by eutrophication due to excessive nutrients in the environment. Releasing the freshwater species from such pressures requires efforts from industry and manufacturers to avoid emissions to vulnerable and high-risk regions.
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Mysterious metal depositions were ‘the most ordinary thing in the world’
In Bronze Age Europe many bronze objects such as axes, swords and jewels were deliberately left at specific spots in the landscape. PhD research by Leiden archaeologist Marieke Visser shows that these practices were expressions of people’s relationship with the world around them. ‘It was a completely…
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Berent Baris
Science
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Jan Willem Erisman
Science
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Leah Powell
Faculteit Archeologie
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Sabrina Autenrieth
Faculteit Archeologie
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Economies of Destruction
The emergence of metalwork deposition during the Bronze Age in Northwest Europe, c. 2300-1500 BC
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Chemical functionalization of the graphene surface for electrical and electrochemical sensing application
Advanced sensing techniques require graphene with high quality and well-controlled surface chemistry.
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Linking soil microbial community dynamics to N2O emission after bioenergy residue amendments
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.
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Coiled-coil mediated liposomal fusion: Asymmetric behaving peptide fusogens
Membrane fusion is a vital process in living organisms and is mediated by zipper-like proteins.
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Photosynthetic light reactions at the gold interface
Promotor: Prof.dr. T.J. Aartsma, Co-promotor: R.N. Frese
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Smart data for sustainable agriculture: less hassle, more green
In supermarkets, consumers are drowning in a sea of sustainability labels. Confusing for them, but also farmers can't see the forest for the trees. Obtaining these labels demands an enormous amount of time and effort. Berent Baris is investigating ways to simplify this process, benefiting both farmers…
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Synthetic, Physical and Computational Chemistry of Propeller-shaped Polycyclic Aromatic Hydrocarbons
This thesis systematically studies the physicochemical properties of non-planar, propeller-shaped, polycyclic aromatic hydrocarbons. The synthesis of several so-called propellerenes is described on a gram scale, using optimized procedures aimed at using less hazardous reagents and reducing the amount…
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Electrochemical and surface studies of the effect of naphthalene-based additives on tin electrodeposition
Tin electrodeposition applications have rapidly evolved in the past 25 years.
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Tycho Jongenelen
Science
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Liveable Planet
Crises like climate change and loss of biodiversity threaten our planet. That’s why sustainability is an important topic in research and education across Leiden University. On this website you read how scientists from many disciplines work together in researching sustainability.
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Varkenshouder raakt door stikstofcrisis verstrikt in juridisch steekspel
Door onduidelijke stikstofregels komen milieuzaken steeds vaker voor de rechter. De zaak van een Reeuwijkse varkenshouder leidt al tientallen jaren lang tot een getouwtrek tussen een milieuorganisatie, de provincie en de rechter. Rogier Kegge, universitair docent Staats- en bestuursrecht, bespreekt…
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How to set ambitious goals for sustainable agriculture
Food production in the Netherlands is an economic success but has led to many environmental issues, including nitrogen pollution. Recently, the policy to allow economic growth while reducing nitrogen losses was disapproved by the highest court in the Netherlands, casting the country into a nitrogen…
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Provincial council election results prove democracy is functioning well
Voters sent a clear signal in the recent Dutch provincial council elections with the 'monster' victory for the Farmer-Citizen Movement (BoerBurgerBeweging, BBB). This sign of ‘social resistance’ has consequences for the policy on nitrogen emissions, according to Geerten Boogaard, Professor of Local…
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Maastricht-Belvédère
Stratigraphy, Palaeoenvironment and Archaeology of the Middle and Late Pleistocene Deposits.