Relevant bibliographies by topics / Nitrogen cycling

Academic literature on the topic 'Nitrogen cycling'

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Published: 4 June 2021
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Journal articles on the topic "Nitrogen cycling"

1

Kothe, Erika. "Special focus: Nitrogen cycling." Journal of Basic Microbiology 54, no. 3 (March 2014): 169. http://dx.doi.org/10.1002/jobm.201470033.

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2

Luo, Yiqi, Christopher B. Field, and Robert B. Jackson. "Does Nitrogen Constrain Carbon Cycling, or Does Carbon Input Stimulate Nitrogen Cycling?1." Ecology 87, no. 1 (January 2006): 3–4. http://dx.doi.org/10.1890/05-0923.

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3

Kou-Giesbrecht, Sian, Vivek K. Arora, Christian Seiler, Almut Arneth, Stefanie Falk, Atul K. Jain, Fortunat Joos, et al. "Evaluating nitrogen cycling in terrestrial biosphere models: a disconnect between the carbon and nitrogen cycles." Earth System Dynamics 14, no. 4 (August 14, 2023): 767–95. http://dx.doi.org/10.5194/esd-14-767-2023.

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Abstract. Terrestrial carbon (C) sequestration is limited by nitrogen (N), an empirically established constraint that could intensify under CO2 fertilization and future global change. The terrestrial C sink is estimated to currently sequester approximately a third of annual anthropogenic CO2 emissions based on an ensemble of terrestrial biosphere models, which have been evaluated in their ability to reproduce observations of the C, water, and energy cycles. However, their ability to reproduce observations of N cycling and thus the regulation of terrestrial C sequestration by N have been largely unexplored. Here, we evaluate an ensemble of terrestrial biosphere models with coupled C–N cycling and their performance at simulating N cycling, outlining a framework for evaluating N cycling that can be applied across terrestrial biosphere models. We find that models exhibit significant variability across N pools and fluxes, simulating different magnitudes and trends over the historical period, despite their ability to generally reproduce the historical terrestrial C sink. Furthermore, there are no significant correlations between model performance in simulating N cycling and model performance in simulating C cycling, nor are there significant differences in model performance between models with different representations of fundamental N cycling processes. This suggests that the underlying N processes that regulate terrestrial C sequestration operate differently across models and appear to be disconnected from C cycling. Models tend to overestimate tropical biological N fixation, vegetation C : N ratio, and soil C : N ratio but underestimate temperate biological N fixation relative to observations. However, there is significant uncertainty associated with measurements of N cycling processes given their scarcity (especially relative to those of C cycling processes) and their high spatiotemporal variability. Overall, our results suggest that terrestrial biosphere models that represent coupled C–N cycling could be overestimating C storage per unit N, which could lead to biases in projections of the future terrestrial C sink under CO2 fertilization and future global change (let alone those without a representation of N cycling). More extensive observations of N cycling processes and comparisons against experimental manipulations are crucial to evaluate N cycling and its impact on C cycling and guide its development in terrestrial biosphere models.
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Liu, Rui, Yang Liu, Yuan Gao, Fazhu Zhao, and Jun Wang. "The Nitrogen Cycling Key Functional Genes and Related Microbial Bacterial Community α−Diversity Is Determined by Crop Rotation Plans in the Loess Plateau." Agronomy 13, no. 7 (June 29, 2023): 1769. http://dx.doi.org/10.3390/agronomy13071769.

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Soil nitrogen cycling microbial communities and functional gene α−diversity indicate soil nitrogen cycling ecological functions and potentials. Crop rotation plans affect soil nitrogen fractions and these indicators. We sequenced soil samples from four crop rotation plans (fallow, winter wheat monoculture, pea-winter wheat-winter wheat-millet rotation, and corn-wheat-wheat-millet rotation) in a long-term field experiment. We examined how microbial communities and functional gene α−diversity changed with soil nitrogen fractions and how nitrogen fractions regulated them. Planting crops increased the abundance and richness of nitrogen cycling key functional genes and bacterial communities compared with fallow. The abundance and richness correlated positively with nitrogen fractions, while Shannon index did not. The abundance increased with soil total nitrogen (STN) and potential nitrogen mineralization (PNM), while Shannon index showed that nitrogen cycling key functional genes increased and then decreased with increasing STN and PON. Introducing legumes into the rotation improved the α−diversity of nitrogen cycling key functional genes. These results can guide sustainable agriculture in the Loess Plateau and clarify the relationship between nitrogen fractions and nitrogen cycling key functional genes.
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Oomen, G. J. M. "Nitrogen Cycling and Nitrogen Dynamics in Ecological Agriculture." Biological Agriculture & Horticulture 11, no. 1-4 (January 1995): 181–92. http://dx.doi.org/10.1080/01448765.1995.9754704.

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6

Fuller, Malcolm F., and Peter J. Reeds. "NITROGEN CYCLING IN THE GUT." Annual Review of Nutrition 18, no. 1 (July 1998): 385–411. http://dx.doi.org/10.1146/annurev.nutr.18.1.385.

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7

Kuypers, Marcel M. M., Hannah K. Marchant, and Boran Kartal. "The microbial nitrogen-cycling network." Nature Reviews Microbiology 16, no. 5 (February 5, 2018): 263–76. http://dx.doi.org/10.1038/nrmicro.2018.9.

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Voss, Maren, and Susanna Hietanen. "The depths of nitrogen cycling." Nature 493, no. 7434 (January 2013): 616–18. http://dx.doi.org/10.1038/493616a.

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9

Terry, Richard E. "Progress in Nitrogen Cycling Studies." Soil Science 163, no. 2 (February 1998): 169–70. http://dx.doi.org/10.1097/00010694-199802000-00013.

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10

Mancinelli, Rocco L., and Christopher P. McKay. "The evolution of nitrogen cycling." Origins of Life and Evolution of the Biosphere 18, no. 4 (December 1988): 311–25. http://dx.doi.org/10.1007/bf01808213.

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Dissertations / Theses on the topic "Nitrogen cycling"

1

Xu, Zhihong, and n/a. "Nitrogen Cycling in Leucaena Alley Cropping." Griffith University. Division of Australian Environmental Studies, 1991. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20050906.155955.

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Field experiments were conducted on an Alfisol in the semi-arid tropics of northern Australia to investigate nitrogen (N) cycling in the leucaena (Leucaena leucocephala) alley cropping system. This is a farming system in which maize (Zea mays L.) is grown in alleys formed by leucaena hedgerows spaced 4.5 metres apart. Mineralization of N from Ieucaena (prunings) and maize residues was studied under field conditions. Response of maize growth to addition of N fertilizer and plant residues was evaluated both in field plot and microplot experiments. The fate of fertilizer N and leucaena N was examined over four consecutive seasons. The decomposition (loss of mass) of dry, cut 15N-labelled leucaena residues differed from that of intact fresh leucaena prunings in the first cropping season although no difference was detected after one year. At the end of one cropping season, 3 months after application, 58-72% of 15N-labelled leucaena had decomposed compared to only 34-36% of fresh leucaena prunings. Similar trends occurred at 20 and 52 days after application. The extent of decomposition of fresh leucaena prunings (28-33%) was similar at two loading rates (2.4 and 4.7 t DM ha -1) by 3 months after addition. About 72% of young 15N labelled maize residues was decomposed by 3 months after addition in the presence of fresh leucaena prunings. Decomposition of 15N-labelled leucaena residues and unlabelled fresh prunings was 91% and 88% respectively 14 months after addition. After 2 years the corresponding values were 96% and 94%. When N content of the recovered residues was taken into account, the values were 95% and 94% after 14 months, and the same (97%) after 2 years. Maize yield and N uptake were significantly increased following addition of either unlabelled fresh leucaena residues or 15N-labelled thy Ieucaena residues. Application of N ferilizer produced a thither increase in the presence of the residues. The maize yield and N uptake with the 15N-labelled leucaena were not different from those with the unlabelled residues. There was a significant positive interaction between N fertilizer and leucaena prunings which increased maize production. Addition of maize residues decreased the yield and N uptake of maize compared with that obtained in the presence of N fertilizer at 40 kg N ha~1 and leucaena residues (2.4 t DM ha-1). There was a marked residual benefit of N fertilizer applied in the first season at 36 kgN hat in the presence of leucaena prunings on the second maize crop yield and N uptake, but not on the third crop. However, a significant residual benefit of leucaena prunings added in the first season was found in DM yield and N uptake of the second and third maize crop. The short-term fate of 15N applied in plant residues was examined during two separate cropping seasons. By 20 days after application of separate 15N-labelled leucaena leaves, stems and petioles, 3-9% of the added 15N could be found in maize plants, 33-49% was in surface residues, 36-48% in the 2 m soil proffle and 0.3-22% unaccounted for. In a separate experiment when leucaena components were not separated, 5% of 15N applied in leucaena residues was taken up by maize 52 days after addition, 45% was in residues, 25% was in soil and 25% was unaccounted for. Jn another experiment, maize recovered 6% of added leucaena 15N after 2 months, 39% remained in residues, 28% was in soil and 27% was not recovered. Incorporation of 15N-labelled leucaena residues in the soil did not increase recoveiy of leucaena 15N by maize compared with placement of the residues on the soil surface. By the end of one cropping season (3 months after application), 9% of added 15N was recovered by maize from 15N-labelled leucaena. There was a similar 15N recoveiy from 15N-labelled maize residues applied as mulch at 1.7 t DM ha1 together with unlabelled leucaena prunings at 2.4 t DM ha ~. In both cases, 30-32% of added 15N was detected in soil, 28% in residues, and 31-34% apparently lost. The short-term fate of fertilizer 15N was different from that of 15N added in plant residues. In a 52-day experiment, maize recovered 65-79% of fertilizer 15N applied at low rates (6.1 and 12.2 kg N ha -1) in the presence of leucaena prunings, 21-34% was present in soil, and less than 1% was not recovered. By 2 months after application, recoveiy of fertilizer 15N by maize was 41% from N fertilizer added at 80 kg N ha -1, 35% from N fertilizer at 40 kg N ha -1 in the presence of leucaena prunings, and 24% from N fertilizer at 40 kg N ha -1 in the presence of maize residues and leucaena prunings. The corresponding deficits (unaccounted-for 15N) were 37%, 38% and 47% respectively. A small but significant amount of the fertilizer 15N was present in the unlabelled leucaena residues (3%) and in the mixture of unlabelled leucaena and maize residues (7%) present on the soil surface. However, application of the plant residues did not affect recoveiy of the fertilizer 15N in soil (21-24%). When N fertilizer was applied at 40 kg N hi1 in the presence of leucaena prunings, 43% of fertilizer 15N was recovered by maize at the end of cropping season, 20% in soil, 2% in residues, and 35% unaccounted for. The long-term fate of fertilizer 15N was compared with that of leucaena 15N in an experiment over four cropping seasons. In the first season, maize tops recovered 50% of the fertilizer 15N but only 4% of the leucaena 15N. In the second, third and fourth seasons, maize (tops + roots) recovered 0.7%, 0.4% and 0.3% of the initial fertilizer 15N compared with 2.6%, 1.8% and 1.4% of the initial leucaena 15N. In the second, third and fourth seasons, recovery of the initial fertilizer 15N (12-14%) in soil was much lower than that of the initial leucaena 15N (38-40%). There was no further loss of the fertilizer 15N after the first season. However, the cumulative 15N deficit for the leucaena 1N in the first two seasons was 50%--thissuggested an additional loss of 23% since the end of the first season. There was no further loss of 15N from either residual fertilizer 15N or residual leucaena 15N in the third and fourth seasons. In conclusion, application of leucaena prunings could substantially increase maize yield and N uptake although some supplementary N fertilizer may be required to achieve maximum crop yield. Maize recovered only a small amount of added leucaena N in the first year. Most of the leucaena residue N was present in the soil and remaining residues after one season. This residue N would be gradually available for plant uptake by subsequent crops. Of course, annual additions of leucaena prunings would appreciably increase the pool of available N over time. Thus, application of leucaena prunings could substantially improve soil fertility in the long term.
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2

Xu, Zhihong. "Nitrogen Cycling in Leucaena Alley Cropping." Thesis, Griffith University, 1991. http://hdl.handle.net/10072/365424.

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Field experiments were conducted on an Alfisol in the semi-arid tropics of northern Australia to investigate nitrogen (N) cycling in the leucaena (Leucaena leucocephala) alley cropping system. This is a farming system in which maize (Zea mays L.) is grown in alleys formed by leucaena hedgerows spaced 4.5 metres apart. Mineralization of N from Ieucaena (prunings) and maize residues was studied under field conditions. Response of maize growth to addition of N fertilizer and plant residues was evaluated both in field plot and microplot experiments. The fate of fertilizer N and leucaena N was examined over four consecutive seasons. The decomposition (loss of mass) of dry, cut 15N-labelled leucaena residues differed from that of intact fresh leucaena prunings in the first cropping season although no difference was detected after one year. At the end of one cropping season, 3 months after application, 58-72% of 15N-labelled leucaena had decomposed compared to only 34-36% of fresh leucaena prunings. Similar trends occurred at 20 and 52 days after application. The extent of decomposition of fresh leucaena prunings (28-33%) was similar at two loading rates (2.4 and 4.7 t DM ha -1) by 3 months after addition. About 72% of young 15N labled maize residues was decomposed by 3 months after addition in the presence of fresh leucaena prunings. Decomposition of 15N-labelled leucaena residues and unlabelled fresh prunings was 91% and 88% respectively 14 months after addition. After 2 years the corresponding values were 96% and 94%. When N content of the recovered residues was taken into account, the values were 95% and 94% after 14 months, and the same (97%) after 2 years. Maize yield and N uptake were significantly increased following addition of either unlabelled fresh leucaena residues or 15N-labelled thy Ieucaena residues. Application of N ferilizer produced a thither increase in the presence of the residues. The maize yield and N uptake with the 15N-labelled leucaena were not different from those with the unlabelled residues. There was a significant positive interaction between N fertilizer and leucaena prunings which increased maize production. Addition of maize residues decreased the yield and N uptake of maize compared with that obtained in the presence of N fertilizer at 40 kg N ha~1 and leucaena residues (2.4 t DM ha-1). There was a marked residual benefit of N fertilizer applied in the first season at 36 kgN hat in the presence of leucaena prunings on the second maize crop yield and N uptake, but not on the third crop. However, a significant residual benefit of leucaena prunings added in the first season was found in DM yield and N uptake of the second and third maize crop. The short-term fate of 15N applied in plant residues was examined during two separate cropping seasons. By 20 days after application of separate 15N-labelled leucaena leaves, stems and petioles, 3-9% of the added 15N could be found in maize plants, 33-49% was in surface residues, 36-48% in the 2 m soil proffle and 0.3-22% unaccounted for. In a separate experiment when leucaena components were not separated, 5% of 15N applied in leucaena residues was taken up by maize 52 days after addition, 45% was in residues, 25% was in soil and 25% was unaccounted for. Jn another experiment, maize recovered 6% of added leucaena 15N after 2 months, 39% remained in residues, 28% was in soil and 27% was not recovered. Incorporation of 15N-labelled leucaena residues in the soil did not increase recoveiy of leucaena 15N by maize compared with placement of the residues on the soil surface. By the end of one cropping season (3 months after application), 9% of added 15N was recovered by maize from 15N-labelled leucaena. There was a similar 15N recoveiy from 15N-labelled maize residues applied as mulch at 1.7 t DM ha1 together with unlabelled leucaena prunings at 2.4 t DM ha ~. In both cases, 30-32% of added 15N was detected in soil, 28% in residues, and 31-34% apparently lost. The short-term fate of fertilizer 15N was different from that of 15N added in plant residues. In a 52-day experiment, maize recovered 65-79% of fertilizer 15N applied at low rates (6.1 and 12.2 kg N ha -1) in the presence of leucaena prunings, 21-34% was present in soil, and less than 1% was not recovered. By 2 months after application, recoveiy of fertilizer 15N by maize was 41% from N fertilizer added at 80 kg N ha -1, 35% from N fertilizer at 40 kg N ha -1 in the presence of leucaena prunings, and 24% from N fertilizer at 40 kg N ha -1 in the presence of maize residues and leucaena prunings. The corresponding deficits (unaccounted-for 15N) were 37%, 38% and 47% respectively. A small but significant amount of the fertilizer 15N was present in the unlabelled leucaena residues (3%) and in the mixture of unlabelled leucaena and maize residues (7%) present on the soil surface. However, application of the plant residues did not affect recoveiy of the fertilizer 15N in soil (21-24%). When N fertilizer was applied at 40 kg N hi1 in the presence of leucaena prunings, 43% of fertilizer 15N was recovered by maize at the end of cropping season, 20% in soil, 2% in residues, and 35% unaccounted for. The long-term fate of fertilizer 15N was compared with that of leucaena 15N in an experiment over four cropping seasons. In the first season, maize tops recovered 50% of the fertilizer 15N but only 4% of the leucaena 15N. In the second, third and fourth seasons, maize (tops + roots) recovered 0.7%, 0.4% and 0.3% of the initial fertilizer 15N compared with 2.6%, 1.8% and 1.4% of the initial leucaena 15N. In the second, third and fourth seasons, recovery of the initial fertilizer 15N (12-14%) in soil was much lower than that of the initial leucaena 15N (38-40%). There was no further loss of the fertilizer 15N after the first season. However, the cumulative 15N deficit for the leucaena 1N in the first two seasons was 50%--thissuggested an additional loss of 23% since the end of the first season. There was no further loss of 15N from either residual fertilizer 15N or residual leucaena 15N in the third and fourth seasons. In conclusion, application of leucaena prunings could substantially increase maize yield and N uptake although some supplementary N fertilizer may be required to achieve maximum crop yield. Maize recovered only a small amount of added leucaena N in the first year. Most of the leucaena residue N was present in the soil and remaining residues after one season. This residue N would be gradually available for plant uptake by subsequent crops. Of course, annual additions of leucaena prunings would appreciably increase the pool of available N over time. Thus, application of leucaena prunings could substantially improve soil fertility in the long term.
Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Division of Australian Environmental Studies
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3

Roberts, J. Murray. "Nitrogen cycling in the Anemonia viridis symbiosis." Thesis, University of Glasgow, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.360160.

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Bhogal, Anne. "Effect of long-term nitrogen applications on nitrogen cycling under continuous wheat." Thesis, University of Nottingham, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294731.

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Ngai, Zoology. "Trophic effects on nutrient cycling." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/2851.

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The top-down effects of consumers and bottom-up effects of resource availability are important in determining community structure and ecological processes. I experimentally examined the roles of consumers — both detritivores and predators — and habitat context in affecting nutrient cycling using the detritus-based insect community in bromeliad leaf wells. I also investigated the role of multiple resources in limiting plant productivity using meta analyses. The insect community in bromeliads only increased nitrogen release from leaf detritus in the presence of a predator trophic level. When only detritivores were present, the flow of stable isotope-labeled nitrogen from detritus to bromeliads was statistically indistinguishable from that in bromeliads lacking insects. I suggest that emergence of adult detritivores constitutes a loss of nitrogen from bromeliad ecosystems, and that predation reduces the rate of this nutrient loss. Hence, insects facilitate nutrient uptake by the plant, but only if both predators and detritivores are present. Moreover, predators can affect nutrient cycling by influencing the spatial scale of prey turnover. This mechanism results in a pattern opposite to that predicted by classic trophic cascade theory. Increasing habitat complexity can have implications for nutrient cycling by decreasing the foraging efficiency of both predators and their prey, and by affecting the vulnerability of predators to intraguild predation. Along a natural gradient in bromeliad size, I found that, depending on the relationship between community composition and habitat size, habitat complexity interacts with the changing biotic community to either complement or counteract the impact of predators on nutrient uptake by bromeliads. In contrast to the existing emphasis on single-resource limitation of primary productivity, meta-analyses of a database of 653 studies revealed widespread limitation by multiple resources, and frequent interaction between these resources in restricting plant growth. A framework for analyzing fertilization studies is outlined, with explicit consideration of the possible role of multiple resources. I also review a range of mechanisms responsible for the various forms of resource limitation that are observed in fertilization experiments. These studies emphasize that a wider range of predator and nutrient impacts should be considered, beyond the paradigm of single resource limitation or classic trophic cascades.
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Klawonn, Isabell. "Marine nitrogen fixation : Cyanobacterial nitrogen fixation and the fate of new nitrogen in the Baltic Sea." Doctoral thesis, Stockholms universitet, Institutionen för ekologi, miljö och botanik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-122080.

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Biogeochemical processes in the marine biosphere are important in global element cycling and greatly influence the gas composition of the Earth’s atmosphere. The nitrogen cycle is a key component of marine biogeochemical cycles. Nitrogen is an essential constituent of living organisms, but bioavailable nitrogen is often short in supply thus limiting primary production. The largest input of nitrogen to the marine environment is by N2-fixation, the transformation of inert N2 gas into bioavailable ammonium by a distinct group of microbes. Hence, N2-fixation bypasses nitrogen limitation and stimulates productivity in oligotrophic regions of the marine biosphere. Extensive blooms of N2-fixing cyanobacteria occur regularly during summer in the Baltic Sea. N2-fixation during these blooms adds several hundred kilotons of new nitrogen into the Baltic Proper, which is similar in magnitude to the annual nitrogen load by riverine discharge and more than twice the atmospheric nitrogen deposition in this area. N2-fixing cyanobacteria are therefore a critical constituent of nitrogen cycling in the Baltic Sea. In this thesis N2 fixation of common cyanobacteria in the Baltic Sea and the direct fate of newly fixed nitrogen in otherwise nitrogen-impoverished waters were investigated. Initially, the commonly used 15N-stable isotope assay for N2-fixation measurements was evaluated and optimized in terms of reliability and practicality (Paper I), and later applied for N2-fixation assessments (Paper II–IV). N2 fixation in surface waters of the Baltic Sea was restricted to large filamentous heterocystous cyanobacteria (Aphanizomenon sp., Nodularia spumigena, Dolichospermum spp.) and absent in smaller filamentous cyanobacteria such as Pseudanabaena sp., and unicellular and colonial picocyanobacteria (Paper II-III). Most of the N2-fixation in the Northern Baltic Proper was contributed by Aphanizomenon sp. due to its high abundance throughout the summer and similar rates of specific N2-fixation as Dolichospermum spp. and N. spumigena. Specific N2 fixation was substantially higher near the coast than in an offshore region (Paper II). Half of the fixed nitrogen was released as ammonium at the site near the coast and taken up by non-N2-fixing organisms including phototrophic and heterotrophic, prokaryotic and eukaryotic planktonic organisms. Newly fixed nitrogen was thereby rapidly turned-over in the nitrogen-depleted waters (Paper III). In colonies of N. spumigena even the potential for a complete nitrogen cycle condensed to a microcosm of a few millimeters could be demonstrated (Paper IV). Cyanobacterial colonies can therefore be hot-spots of nitrogen transformation processes potentially including nitrogen gain, recycling and loss processes. In conclusion, blooms of cyanobacteria are instrumental for productivity and CO2 sequestration in the Baltic Sea. These findings advance our understanding of biogeochemical cycles and ecosystem functioning in relation to cyanobacterial blooms in the Baltic Sea with relevance for both ecosystem-based management in the Baltic Sea, and N2-fixation and nitrogen cycling in the global ocean.

At the time of the doctoral defense, the following paper was unpublished and had a status as follows: Paper 2: Manuscript.

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Grantley-Smith, M. P. "Nitrogen cycling in growing cattle fed maize silage." Thesis, University of Reading, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370353.

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Malone, Edward Thomas. "Development of nitrogen cycling in recently deglaciated watersheds." Thesis, University of Birmingham, 2014. http://etheses.bham.ac.uk//id/eprint/5338/.

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Perturbation of natural environments through anthropogenic nitrogen (N) inputs and climate change significantly alter soil systems. Few pristine environments remain in which to study natural controls on the development of soil N cycling over time and thus increase our understanding of the natural development of such mechanisms. This study took place in Glacier Bay National Park and Preserve (GBNP), southeast Alaska. This area presented a unique opportunity to study microbial cycling in near pristine soil systems. Six river catchments were selected for study across a chronosequence of 200 years of primary succession. Within each watershed soil nutrient content and microbial processes where evaluated to determine a time frame for development. Samples were collected from riparian and wider catchment areas in order to investigate the effects of dominant vegetation types and slope steepness. These data were coupled with percent vegetation type generated by analysis of satellite imagery allowing the scaling up of soil variables. A key finding of this research was that vegetation type is the primary influence on nitrogen cycling processes and soil characteristics. With increasing age potential microbial activity increased in particular nitrification, which linked with the low soil NO\(_3\)- indicated a large heterotrophic microbial community in older soils.
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Hall, Cynthia Adia. "Insights into marine nitrogen cycling in coastal sediments." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28228.

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Thesis (M. S.)--Earth and Atmospheric Sciences, Georgia Institute of Technology, 2009.
Committee Chair: Ellery Ingall; Committee Member: Andrew Stack; Committee Member: Greg Huey; Committee Member: Joseph Montoya; Committee Member: Judith Curry.
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Cody, Michael Jonathan. "Cycling nitrogen for productivity in agroforestry, nitrogen, lignin and polyphenol controls on mineralization." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ40039.pdf.

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Books on the topic "Nitrogen cycling"

1

Van Cleemput, O., G. Hofman, and A. Vermoesen, eds. Progress in Nitrogen Cycling Studies. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-011-5450-5.

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Datta, Rahul, Ram Swaroop Meena, Shamina Imran Pathan, and Maria Teresa Ceccherini, eds. Carbon and Nitrogen Cycling in Soil. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-13-7264-3.

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Moir, James W. B. Nitrogen cycling in bacteria: Molecular analysis. Norfolk, UK: Caister Academic Press, 2011.

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1933-, Blackburn T. Henry, Sørensen Jan, and International Council of Scientific Unions. Scientific Committee on Problems of the Environment., eds. Nitrogen cycling in coastal marine environments. Chichester [West Sussex]: Published on behalf of the Scientific Committee on Problems of the Environment (SCOPE) of the International Council of Scientific Unions (ICSU) by Wiley, 1988.

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Schulze, Ernst-Detlef, ed. Carbon and Nitrogen Cycling in European Forest Ecosystems. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-642-57219-7.

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Sveriges lantbruksuniversitet. Institutionen fo r ekologi och miljo va rd., ed. Theoretical analyses of C and N cycling in soil. Uppsala: Swedish University of Agricultural Sciences, Dept. of Ecology and Environmental Research, 1987.

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Olof, Andrén, ed. Ecology of arable land: Organisms, carbon and nitrogen cycling. Copenhagen, Denmark: Munksgaard International, 1990.

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Harrison, A. F. Review of nitrogen distribution and cycling in forest ecosystems. Grange-over-Sands: Institute of Terrestrial Ecology, 1986.

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Warren, Howarth Robert, ed. Nitrogen cycling in the North Atlantic Ocean and its watersheds. Dordrecht: Kluwer Academic Publishers, 1996.

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Howarth, Robert W., ed. Nitrogen Cycling in the North Atlantic Ocean and its Watersheds. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1776-7.

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Book chapters on the topic "Nitrogen cycling"

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Uiterkamp, A. J. M. Schoot. "Nitrogen cycling and human intervention." In Nitrogen Fixation, 55–66. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4684-6432-0_6.

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Jarvis, S. C. "Future trends in nitrogen research." In Progress in Nitrogen Cycling Studies, 1–10. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-011-5450-5_1.

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Rice, E. L. "Allelopathic effects on nitrogen cycling." In Allelopathy, 31–58. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2376-1_4.

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Mullen, Robert W. "Nutrient Cycling in Soils: Nitrogen." In Soil Management: Building a Stable Base for Agriculture, 67–78. Madison, WI, USA: Soil Science Society of America, 2015. http://dx.doi.org/10.2136/2011.soilmanagement.c5.

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Hood, Rebecca Clare, and Martin Wood. "Estimating gross mineralisation of Alnus glutinosa residues, using 15N mirror image experimentation." In Progress in Nitrogen Cycling Studies, 53–56. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-011-5450-5_10.

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Saguer, E., and M. A. Gispert. "N2O Emission in Selected Representative Soils of the North-Eastern Iberian Peninsula." In Progress in Nitrogen Cycling Studies, 613–19. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-011-5450-5_100.

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Samater, A. H., and O. Van Cleemput. "Nitrite Accumulation in Soils upon Urea Application." In Progress in Nitrogen Cycling Studies, 621–26. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-011-5450-5_101.

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Skiba, U., K. J. Hargreaves, I. J. Beverland, D. H. O’Neill, D. Fowler, and J. B. Moncrieff. "Measurement of Field Scale N2O Emission Fluxes from a Wheat Crop Using Micrometeorological Techniques." In Progress in Nitrogen Cycling Studies, 627–32. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-011-5450-5_102.

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Swerts, M., R. Merckx, and K. Vlassak. "Influence of carbon availability on the production of NO, N2O, N2 and CO2 by soil cores during anaerobic incubation." In Progress in Nitrogen Cycling Studies, 633–39. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-011-5450-5_103.

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Tomaschewski, C., I. Leuther, J. Groeneweg, and W. Tappe. "Nitric oxide production in Nitrosomonas europaea under Aerobic and anoxic conditions." In Progress in Nitrogen Cycling Studies, 641–43. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-011-5450-5_104.

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Conference papers on the topic "Nitrogen cycling"

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Gao, Zhipeng, Haicheng Weng, and Huaming Guo. "NITROGEN CYCLING IN HIGH ARSENIC GROUNDWATER SYSTEM." In GSA 2020 Connects Online. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020am-357406.

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Sauer, Hailey, Cody Sheik, and Trinity Hamilton. "NITROGEN CYCLING NETWORKS OF LAKE SUPERIOR SEDIMENTS." In GSA Connects 2023 Meeting in Pittsburgh, Pennsylvania. Geological Society of America, 2023. http://dx.doi.org/10.1130/abs/2023am-389170.

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Cogswell, Clara, and James Heiss. "TEMPERATURE EFFECTS ON NITROGEN CYCLING IN COASTAL AQUIFERS." In GSA 2020 Connects Online. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020am-358890.

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Motomura, Kento, Shoichi Kiyokawa, Minoru Ikehara, and Takashi Sano. "Nitrogen cycling in the late Paleoproterozoic freshwater environment." In Goldschmidt2022. France: European Association of Geochemistry, 2022. http://dx.doi.org/10.46427/gold2022.9869.

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Mehr, Nicole K., Carol Adair, Carol Adair, Lindsay Barbieri, Lindsay Barbieri, Tyler Goeschel, and Tyler Goeschel. "IMPACTS OF AGRICULTURE ON GREENHOUSE GASES AND NITROGEN CYCLING." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-284187.

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Zheng, Lizhi, and M. Bayani Cardenas. "DIURNAL TEMPERATURE EFFECTS ON NITROGEN CYCLING IN HYPORHEIC ZONES." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-281586.

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Best, Mackenzie, Scott D. Wankel, Heather V. Graham, Jennifer C. Stern, Jennifer Macalady, Maurizio Mainiero, Nicu-Viorel Atudorei, and Daniel S. Jones. "ISOTOPIC SIGNATURES OF NITROGEN CYCLING IN SULFURIC ACID CAVES." In GSA Connects 2023 Meeting in Pittsburgh, Pennsylvania. Geological Society of America, 2023. http://dx.doi.org/10.1130/abs/2023am-393508.

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Chen, Xingyuan, Bing Li, Zhi Li, Peishi Jiang, Katherine Muller, Glenn Hammond, Jianqiu Zheng, and Hyun-Seob Song. "Reactive Transport Modeling for Watershed Carbon and Nitrogen Cycling." In Goldschmidt2023. France: European Association of Geochemistry, 2023. http://dx.doi.org/10.7185/gold2023.18743.

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Magyar, Paul, Robert Niederdorfer, Damian Hausherr, Helmut Bürgmann, Adriano Joss, Joachim Mohn, and Moritz F. Lehmann. "Tracking the role of anammox in microbial nitrogen cycling using nitrogen and oxygen isotopic measurements." In Goldschmidt2021. France: European Association of Geochemistry, 2021. http://dx.doi.org/10.7185/gold2021.8124.

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"Nitrogen cycling under urine patches: model comparison and sensitivity analysis." In 20th International Congress on Modelling and Simulation (MODSIM2013). Modelling and Simulation Society of Australia and New Zealand (MSSANZ), Inc., 2013. http://dx.doi.org/10.36334/modsim.2013.h4.vogeler.

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Reports on the topic "Nitrogen cycling"

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Loeffler, Frank E., Konstantinos T. Konstantinidis, and Robert A. Sanford. PUNCS: Towards Predictive Understanding of Nitrogen Cycling in Soils. Office of Scientific and Technical Information (OSTI), November 2015. http://dx.doi.org/10.2172/1227715.

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Nevison, Cynthia, and Peter Hess. Agricultural impacts on nitrogen cycling: climate and air pollution. Office of Scientific and Technical Information (OSTI), December 2019. http://dx.doi.org/10.2172/1579513.

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Hall, Robert, and Geoff Poole. Scaling hyporheic nitrogen cycling in large river alluvial aquifers. Office of Scientific and Technical Information (OSTI), August 2023. http://dx.doi.org/10.2172/1993721.

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Lawrence, Corey. A Multiscale Approach to Modeling Carbon and Nitrogen Cycling within a High Elevation Watershed. Office of Scientific and Technical Information (OSTI), June 2018. http://dx.doi.org/10.2172/1441199.

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D.W. Johnson. Simulated effects of elevated CO{sub 2} on nitrogen cycling using the NuCM model. Office of Scientific and Technical Information (OSTI), October 1998. http://dx.doi.org/10.2172/762876.

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Meixner, Tom, Vincent Carroll Tidwell, Gretchen Oelsner, Paul Brooks, and Jesse D. Roach. Use of a dynamic simulation model to understand nitrogen cycling in the middle Rio Grande, NM. Office of Scientific and Technical Information (OSTI), August 2008. http://dx.doi.org/10.2172/947333.

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Looper, Erin. Scenes from the Swale: Investigating Spatial and Temporal Dimensions of Nitrogen Cycling in Urban Stormwater Bioretention Facilities. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.7372.

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Brzostek, Edward, Ember Morrissey, and Zachary Freedman. Final Technical Report: Quantitative, trait-based microbial ecology to accurately model the impacts of nitrogen deposition on soil carbon cycling in the Anthropocene. Office of Scientific and Technical Information (OSTI), November 2023. http://dx.doi.org/10.2172/2221797.

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Kercher, J. R., and J. Q. Chambers. Description, calibration and sensitivity analysis of the local ecosystem submodel of a global model of carbon and nitrogen cycling and the water balance in the terrestrial biosphere. Office of Scientific and Technical Information (OSTI), October 1995. http://dx.doi.org/10.2172/198872.

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Engdahl, Nicholas. Final project report: Transient cycling of nitrogen, organic carbon and oxygen within the free-flowing Columbia River corridor: Linking exposure time dependent biogeochemical reactions to river stage fluctuations. Office of Scientific and Technical Information (OSTI), December 2021. http://dx.doi.org/10.2172/1833557.

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