Publicaties
Gekozen filters:
Gekozen filters:
Investigating the response of soil nitrogen cycling to grass invasion Universiteit Hasselt Universiteit Antwerpen
In heathlands, high mineral N input causes replacement of Calluna vulgaris, the dominant plant, by fast-growing grasses such as Molinia caerulea. The vegetation shift signifies altered litter quality from low- to high-quality litter due to differences in lignin content. Litter quality usually affects decomposition processes, which can, in turn, alter nutrient cycling. Therefore, the change in plant dominance in this ecosystem possibly alters ...
Nitrogen cycling, retention and export in a eutrophic temperate macrotidal estuary Vrije Universiteit Brussel
The ecological functioning of estuarine environments is greatly influenced by human activity. One of the most important perturbations lies in the increased inputs of nutrients, mainly nitrogen, to these systems. This N is submitted to various biogeochemical processes leading to recycling, retention and export to the sea. In this paper we present results from 15N-incubation experiments allowing the simultaneous determination of NH4+ and NO3- ...
Carbon and nitrogen cycling in the Scheldt estuary: the major players,long-term changes and an integrated view Vrije Universiteit Brussel
The Scheldt estuary is a highly heterotrophic, nutrient-rich, turbid, tidal estuary in a densely
populated area (Belgium/The Netherlands). Here we present the results (1) on the long-term
changes in nutrient loadings and transformations within the estuary and (2) on nitrogen cycling
rate measurements obtained with isotopic tracers. Moreover, we have developed and applied
novel techniques that allow direct linking of ...
populated area (Belgium/The Netherlands). Here we present the results (1) on the long-term
changes in nutrient loadings and transformations within the estuary and (2) on nitrogen cycling
rate measurements obtained with isotopic tracers. Moreover, we have developed and applied
novel techniques that allow direct linking of ...
H2-Oxidizing bacteria for single cell protein production and sustainable nitrogen cycling Universiteit Gent
Bioreactor strategies for sustainable nitrogen cycling based on mineralization/nitrification, partial nitritation/anammox or sulfur-based denitratation Universiteit Antwerpen
In the biogeochemical flows on Earth, the reactive nitrogen (Nr) level has three times surpassed the safe boundary. The severe transgression of this boundary goes against sustainable planetary development. The modern food production process excessively relies on synthetic Nr fertilizers from the Haber– Bosch process. However, the massive loss of valuable nitrogen resources (i.e., 78-89%) from agriculture has been causing severe nitrogen cascade. ...
Summer warming accelerates sub-arctic peatland nitrogen cycling without changing enzyme pools or microbial community structure Universiteit Antwerpen
The balance of primary production and decomposition in northern peatlands may shift due to climate change, with potential feedbacks to atmospheric CO2 concentrations. Nitrogen availability will modulate this shift, but little is known about the drivers of soil nitrogen dynamics in these environments. We used a long-term (9 years) open top chamber (OTC) experiment in an ombrotrophic Sphagnum peat bog in sub-arctic Sweden, to test for the ...
Nitrogen cycling, retention and export in a eutrophic temperate macrotidal estuary KU Leuven
The ecological functioning of estuarine environments is greatly influenced by human activity. One of the most important perturbations lies in the increased inputs of nutrients, mainly nitrogen (N), to these systems. This N is submitted to various biogeochemical processes leading to recycling, retention and export to the sea. In this article we present results from 15N-incubation experiments allowing the simultaneous determination of NH4+ and ...
The Link between Microbial Diversity and Nitrogen Cycling in Marine Sediments Is Modulated by Macrofaunal Bioturbation Instituut voor Landbouw-, Visserij- en Voedingsonderzoek Universiteit Gent
Objectives The marine benthic nitrogen cycle is affected by both the presence and activity of macrofauna and the diversity of N-cycling microbes. However, integrated research simultaneously investigating macrofauna, microbes and N-cycling is lacking. We investigated spatio-temporal patterns in microbial community composition and diversity, macrofaunal abundance and their sediment reworking activity, and N-cycling in seven subtidal stations in ...
Dynamic seasonal nitrogen cycling in response to anthropogenic N-loading in a tropical catchment, Athi-Galana-Sabaki River, Kenya KU Leuven
As part of a broader study on the riverine biogeochemistry in the Athi-Galana-Sabaki (A-G-S) River catchment (Kenya), we present data constraining the sources, transit and transformation of multiple nitrogen (N) species as they flow through the A-G-S catchment (∼47 000 km2). The data set was obtained in August-September 2011, November 2011, and April-May 2012, covering the dry season, short rain season and long rain season respectively. Release ...