Sentences with phrase «on nitrogen cycling»

The invention of synthetic fertilizer, where nitrogen is taken from an inert chemical form in the air and turned into ammonia, has had a profound effect on nitrogen cycling.

Our paper on the nitrogen cycle shows, as an example, how human ingenuity, by inventing an artificial «enzyme» that can convert the abundant gas, N2, into ammonium, changed the cycle for that element.

But the precise effect of pine bark beetle plagues on the nitrogen cycle and carbon cycle is highly variable, says a research group led by the University of Idaho, who have used an ecosystem model to simulate outbreaks.

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Not exact matches

On the other hand the thirteenth rivet popped from a wing, or the extinction of a key species in the cycling of nitrogen, for example could lead to a serious malfunctioning of the nitrogen cycle.

The lack of oxygen will also affect other elemental cycles on the planet, such as nitrogen and carbon.

The results of their study confirm that oceans are good at balancing the nitrogen cycle on a global scale.

Reactions in and on sea - salt aerosol particles may have a strong influence on oxidation processes in the marine boundary layer through the production of halogen radicals, and reactions on mineral aerosols may significantly affect the cycles of nitrogen, sulfur, and atmospheric oxidants.

Dr Pinto says: «The discovery of a single microorganism capable of full nitrification will have a significant impact on our understanding of the nitrogen cycle and on efforts to manage nitrogen pollution.

As a result, global change researchers will have to change their estimations on the nitrification potential in the global nitrogen cycle.»

Whales that are beached on unpopulated shores are left to break down into the nitrogen cycle «as nature has done for millennia.»

Current research includes studies of the food web structure and biogeochemistry of Arctic streams and rivers, nitrogen cycling in headwater streams and estuaries, and the impacts of climate change on the freshwater cycle of the Arctic.

Special attention is paid to feedbacks of physiological changes on the carbon, nitrogen, iron, and sulfur cycles and how these changes will affect and be affected by future climate change.

The study by the Joint Group of Experts on the Scientific Aspects of Marine Environmental Protection (GESAMP), a United Nations advisory body, provides a new estimate of the extent that human beings are altering the cycling of nitrogen in the oceans.

If you're engaged in a bulking cycle or a cutting cycle, you're especially dependent on the function of nitrogen retention.

Make sure to have a feeding cycle exhibit and a visual representation of the nitrogen cycle on display during spring preparation months.

Many customers do want fish in their tanks — fish encourage the growth of corals by eating algae and keep the nitrogen cycle on track — but they want fish that wont eat the coral.

Who will be around when governments start talks on a global framework agreement on protection of the nitrogen cycle?

The paper is behind a paywall, but the Stockholm Resilience Center, which has led this work, has summarized the results, including the authors» conclusion that we're in the danger zone on four of the nine boundaries: climate change, loss of biosphere integrity, land - system change and alteration of biogeochemical cycles (for the nutrients phosphorus and nitrogen).

Although much of the work in this area has focused on the carbon cycle, expanding our focus to other elements, especially nitrogen and phosphorus, can make a positive contribution.

The task is complicated, however, because nitrogen, when cycling through the atmosphere or deposited on land or in water, is subject to influences that can alter the isotopic ratios, thus masking the source.

It is rapidly expanding energy use, mainly driven by fossil fuels, that explains why humanity is on the verge of breaching planetary sustainability boundaries through global warming, biodiversity loss, and disturbance of the nitrogen - cycle balance and other measures of the sustainability of the earth's ecosystem.

Recalling the concern reflected in the outcome document of the United Nations Conference on Sustainable Development, entitled «The future we want», 1 that the health of oceans and marine biodiversity are negatively affected by marine pollution, including marine debris, especially plastic, persistent organic pollutants, heavy metals and nitrogen - based compounds, from numerous marine and land - based sources, and the commitment to take action to significantly reduce the incidence and impacts of such pollution on marine ecosystems, Noting the international action being taken to promote the sound management of chemicals throughout their life cycle and waste in ways that lead to the prevention and minimization of significant adverse effects on human health and the environment, Recalling the Manila Declaration on Furthering the Implementation of the Global Programme of Action for the Protection of the Marine Environment from Land - based Activities adopted by the Third Intergovernmental Review Meeting on the Implementation of the Global Programme of Action for the Protection of the Marine Environment from Land - based Activities, which highlighted the relevance of the Honolulu Strategy and the Honolulu Commitment and recommended the establishment of a global partnership on marine litter, Taking note of the decisions adopted by the eleventh Conference of the Parties to the Convention on Biological Diversity on addressing the impacts of marine debris on marine and coastal biodiversity, Recalling that the General Assembly declared 2014 the International Year of Small Island Developing States and that such States have identified waste management among their priorities for action, Noting with concern the serious impact which marine litter, including plastics stemming from land and sea - based sources, can have on the marine environment, marine ecosystem services, marine natural resources, fisheries, tourism and the economy, as well as the potential risks to human health; 1.

But while «climate change represents a simple and broad - reaching message that can be boiled down to a couple of ideas, (the nitrogen cycle) represents an incredibly diverse array of benefits and problems that play out in different ways depending on where you are.»

You'll see that the limits that most concern the biogeochemists are not the limits of drilling and mining (what we used to call «non-renewable resources») but rather the limits that are tied to overall system dynamics — the carbon and nitrogen cycles, biodiversity loss, and so on.

It is also worth noting that unlike many of humanity's other effects on the planet, the remaking of the nitrogen cycle was deliberate.

Working with the Scientific Committee on Problems of the Environment, Susan co-authored the Emerging Challenges section of the United Nations Environment Programme's Global Environmental Outlook (GEO) Yearbook for 2003, which addressed the alteration of the nitrogen cycle and over-fishing.

The scientists believe that nitrogen's relatively small impact on the carbon cycle is due to the fact that deeper layers of permafrost won't thaw until the fall or even early winter, when summer's warmth finally reaches more than one meter below ground.

And we found the rate of permafrost thaw and its effect on the decomposition of deep carbon will have a much bigger impact on the carbon cycle than the availability of deep nitrogen and its ability to spark plant growth,» says Charles Koven of Berkeley Lab's Earth Sciences Division.

In the version of this Letter originally published, in the final paragraph, the section of text including «Earth system models should... nutrient cycling)» was misleading and should have been: «Models simulating the dynamics of the terrestrial biosphere currently consider the effects of nitrogen on vegetation and soils25, 26 but they still do not consider the effects of other nutrients such as phosphorus or potassium.

Nitrogen takes on a variety of chemical forms throughout the nitrogen cycle, including N2O.

However, despite many efforts to unravel the linkage and feedback controls between the carbon and nitrogen cycles, and the effect of their variability on primary production and food - web dynamics, they are still not well understood.

It would be nice to see the IPCC make projections for atmospheric greenhouse gas concentrations over the next 100 years based at least in part on carbon / nitrogen cycle models, hydrology / permafrost models, and so on.