Sentences with phrase «dissolved organic carbon»

The team found dissolved organic carbon in all of them, and they found that newly - exposed muddy water was liable to surrender 40 % more CO2 to the atmosphere.

An article published in the Global Biogeochemical Cycles on 20th of February 2018 estimates that solar radiation mineralizes 45 teragrams of terrestrial dissolved organic carbon in the ocean.

«The export of terrestrial dissolved organic carbon from inland water to the ocean is faster than its photochemical mineralization in the inland waters.

Thus, solar radiation mineralizes terrestrial dissolved organic carbon more in the ocean than in the inland waters concludes Anssi Vähätalo, the leader of the research group.

Scripps's Byron Pedler, Lihini Aluwihare, and Farooq Azam found that a single bacterium called Alteromonas could consume as much dissolved organic carbon as a diverse community of organisms.

A key element of the carbon cycle is the microbial conversion of dissolved organic carbon into inedible forms.

Abbott BW, Larouche JR, Jones JB, Bowden WB, Balser AW (2014) Elevated dissolved organic carbon biodegradability from thawing and collapsing permafrost.

Zhang et al. [2017] conducted lab experiments of leaching and found dissolved organic carbon (DOC) export of nearly five per cent of the carbon stored in surface soils.

Increased dissolved organic carbon, only during the period of using return flows from the Barmah - Millewa watering action.

Stubbins and his colleagues were most interested in the way the vents» extremely high temperatures and pressure affect dissolved organic carbon.

Oceanic dissolved organic carbon is a massive carbon store that helps regulate the level of carbon dioxide in the atmosphere — and the global climate.

«Our results show that future studies should assess not only the quantity of dissolved organic carbon entering our rivers and streams, but also its source,» says Canuel.

A crucial process has been identified to explain the reason why dissolved organic carbon (DOC) levels in the deep oceans are constant despite a continuous supply from the surface ocean.

Response to Comment on «Dilution limits dissolved organic carbon utilization in the deep ocean»

My most recent endeavours include: biological oceanographic studies of the central Canadian Arctic, Canadian Beaufort Sea (investigating phytoplankton bloom dynamics, sea ice bio-optics and ice algal productivity, photophysiology and taxonomy) and Hudson Bay (investigating freshwater and dissolved organic carbon input and export), and biophysical modeling of the ice algae ecosystem.

March 20, 2018 Researchers analyzed dissolved organic carbon from water column samples collected in five regions to establish baseline data about its relative persistence and cycling in the northern Gulf of Mexico.

The Science Sunlight and microbes found in Arctic waters interact to degrade dissolved organic carbon (DOC) that is flushed from thawing Arctic permafrost soils into...

The team found that the Mississippi River exports large amounts of dissolved organic carbon with an anthropogenic 14C signature, which is removed and -LSB-...]

Because the carbon that stimulates methane production is primarily dissolved organic carbon carried downward through the peat by rainwater rather than the solid - phase carbon that forms peat, this change in transport depth doubled the peak production zones for methane.

So they could begin to make an estimate of the rate at which dissolved organic carbon is re-entering the planetary system, and perhaps augmenting the carbon cycle.

As the thawed layer deepened over the summer, the researchers found, the age of dissolved organic carbon rose by 120 - 125 %, while the age of carbon dioxide rose by 59 - 63 %.

Following these findings, the researchers recommend shorter productivity measurements to help minimize the effect of respiratory and dissolved organic carbon loss and hopefully produce more precise estimates of the ocean's global carbon productivity over smaller increments of time.

A higher organic carbon load might lead to the development of ecosystems where microorganisms mainly feed on dissolved organic carbon, thus opening a way for the pollutants to enter the food web and cause more problems in higher level organisms, like fish,» says Matyas Ripszam.

Senior Lecturer Anssi Vähätalo and his research group from Department of Biological and Environmental Science at the University of Jyväskylä has found out that solar radiation mineralizes more terrestrial dissolved organic carbon in the ocean than in the inland waters.

Changes in precipitation and runoff in New England may be driving more dissolved organic carbon into the Gulf of Maine.

«Solar radiation mineralizes terrestrial dissolved organic carbon in the ocean.»

Methane production is accelerated even more in areas dominated by sedges, grasslike plants that exude more easily altered forms of dissolved organic carbon from their roots.

Eran Hood, professor of environmental science at the University of Alaska Southeast in Juneau, and colleagues report in Nature Geoscience that they developed a database of dissolved organic carbon found in 300 samples collected from glaciers on five continents.

Matyas Ripszam has successfully developed a method to measure the extent to which contaminants partition to dissolved organic carbon.

This will result in increased inflow of terrestrial dissolved organic carbon.

Some contaminants with specific structural properties showed no spatial differences in partitioning to dissolved organic carbon.

Originally, the researchers thought the vents might be a source of the dissolved organic carbon.

The results revealed that dissolved organic carbon is efficiently removed from ocean water when heated.

«Dissolved organic carbon (DOC) and soil microbes are typically studied as broad groups, and we wanted to examine the specific relationship between the diversity of soils metabolites and the diversity of microbes.»

The team's findings provide one possible mechanism for an observed increase in the concentration of dissolved organic carbon in the surface waters of North America and Europe during the last few decades, and have implications for management of water quality in coastal zones worldwide.

«The biocrusts are a big buffet and we find in our study that they each use different fractions of dissolved organic carbon, so it takes a community to consume a buffet,» Northen said.

The pool of dissolved organic carbon (DOC) in the oceans is as large as all of the carbon in the atmosphere.

Researchers speculate that primitive life could eke out an existence there, subsisting on a bare minimum of dissolved organic carbon — a notion bolstered by the recent discovery of bacteria within refrozen ice in a core drilled to 100 meters above the lake under Vostok Station (ScienceNOW, 9 December 1999).

The majority of terrestrial dissolved organic carbon is recalcitrant against microbial mineralization in the ocean, but solar radiation can photochemically mineralize part of it into carbon dioxide.

Rivers discharge annually 248 teragrams (248,000,000,000,000 grams) of terrestrial dissolved organic carbon from the continents to the ocean.

The river plume containing terrestrial dissolved organic carbon can be seen as dark regions in the Atlantic Ocean.

The dissolved organic carbon from the Amazon Rivers spreads into the Atlantic Ocean to be decomposed by solar radiation.

She and other scientists sampled 135 lakes and 73 rivers near the Kuparuk River Basin in Alaska between 2011 and 2013 and compared how the samples behaved with and without light in terms of the rate of conversion of dissolved organic carbon to CO2.

When phytoplankton use carbon dioxide to make new cells, a substantial portion of that cellular material is released into the sea as a buffet of edible molecules collectively called «dissolved organic carbon.»

Microbial communities and their potential for degradation of dissolved organic carbon in cryoconite hole environments of Himalaya and Antarctica — Aritri Sanyal — Microbiological Research

According to the study, the laboratory scale use of graphene oxide membranes was for the removal of NOM from water that had been treated and still contained 5 mg / L of dissolved organic carbon.