搜索结果: 1-15 共查到“海洋地质学 production”相关记录26条 . 查询时间(0.14 秒)
Recent changes in production in oligotrophic Uinta Mountain lakes, Utah, identified using paleolimnology
oligotrophic Uinta Mountain lakes Utah
2014/11/28
We use multiple proxies from lake sediment records of six remote alpine lakes in the Uinta Mountains, Utah,
to investigate primary production and potential drivers of changes in trophic status over t...
Changes in the vertical distribution of primary production in response to land-based nitrogen loading
Terrestrial nitrogen load production
2014/10/16
Changes in the vertical distribution of primary production in response to land-based nitrogen loading。
Recent changes in production in oligotrophic Uinta Mountain lakes, Utah, identified using paleolimnology
production in oligotrophic Mountain lakes Utah identified paleolimnology
2014/10/16
We use multiple proxies from lake sediment records of six remote alpine lakes in the Uinta Mountains, Utah, to investigate primary production and potential drivers of changes in trophic status over th...
Characterization of stable isotope fractionation during methane production in the sediment of a eutrophic lake, Lake Dagow, Germany
stable isotope fractionation methane production in the sediment eutrophic lake Lake Dagow Germany
2014/4/18
We measuredd13CofCO2,CH4, and acetate-methyl in profundal sediment of eutrophic Lake Dagow by incubation experiments in the presence and absence of methanogenic inhibitors chloroform, bromoethane sulf...
Production of nitrogen gas via anammox and denitrification in intact sediment cores along a continental shelf to slope transect in the North Atlantic
Production of nitrogen gas anammox denitrification intact sediment cores a continental shelf slope transect the North Atlantic
2014/4/17
We measured the production of N2 gas from anammox and denitrification simultaneously in intact sediment cores at six sites along a transect of the continental shelf (50 m) and deeper slope (2000 m) in...
The role of net community production in air–sea carbon fluxes at the North Pacific subarctic–subtropical boundary region
air–sea carbon fluxes net community production
2014/4/17
The North Pacific subarctic–subtropical boundary region is an important sink for atmospheric CO2
, with high
annual influx relative to surrounding waters and large seasonal variability. The location...
Composition, production, and loss of carbohydrates in subtropical shallow subtidal sandy sediments: Rapid processing and long-term retention revealed by 13 C-labeling
Composition production loss of carbohydrates subtropical shallow subtidal sandy sediments Rapid processing long-term retention revealed by 13 C-labeling
2014/4/16
The composition and production of carbohydrates (mannose, rhamnose, fucose, galactose, glucose, and xylose) and their transfer among sediment compartments (microphytobenthos [MPB], bacteria, and detri...
Geochemical processes and chemosynthetic primary production in different thiotrophic mats of the Ha˚kon Mosby Mud Volcano (Barents Sea)
Geochemical processes chemosynthetic primary production different thiotrophic mats of the Ha˚ kon Mosby Mud Volcano
2014/4/16
We have investigated if in a cold seep methane or sulfide is used for chemosynthetic primary production and if
significant amounts of the sulfide produced by anaerobic oxidation of methane are oxidiz...
Dark production of hydrogen peroxide in the Gulf of Alaska
Gulf of Alaska hydrogen peroxide
2014/4/16
Dark H2O2 production rates were measured in samples collected in the Gulf of Alaska. We used a simple, novel
method for determining absolute rates of dark production and decay of H2O2
, both of whic...
Dark production of hydrogen peroxide in the Gulf of Alaska
Gulf of Alaska hydrogen peroxide
2014/4/16
Dark H2O2 production rates were measured in samples collected in the Gulf of Alaska. We used a simple, novel
method for determining absolute rates of dark production and decay of H2O2
, both of whic...
Direct and indirect coupling of primary production and diel nitrate dynamics in a subtropical spring-fed river
primary production iel nitrate dynamics
2014/4/16
We used high-frequency in situ measurements of nitrate (NO{
3
) and dissolved oxygen (DO) from the springfed Ichetucknee River, Florida, to derive multiple independent estimates of assimilatory nitr...
Thresholds of gross primary production for the metabolic balance of marine planktonic communities
marine planktonic communities gross primary production
2014/4/18
The notion that less productive marine planktonic communities tend to be heterotrophic was tested by
synthesizing reported estimates of the relationships between the net community production or commu...
Dimethyl sulfide production in a saline eutrophic lake, Salton Sea, California
Dimethyl sulfide production lake Salton Sea
2014/4/17
The concentrations and distribution of volatile organic sulfur compounds were quantified over a 13-month
period in the Salton Sea, a warm eutrophic saline lake in Southern California, U.S.A. The conc...
Carbon stable isotopes reveal relative contribution of shelf-slope production to the northern California Current pelagic community
Carbon stable isotopes shelf-slope production the northern California Current pelagic community
2014/4/18
To better delineate the relative contribution of shelf and slope production to the northern California Current (NCC) pelagic community, we examined the cross-shelf distribution ofd13 C in 19 species o...
Photochemical production of dissolved organic carbon from resuspended sediments
Photochemical production dissolved organic carbon resuspended sediments
2014/5/5
A series of controlled photolysis experiments using simulated sunlight was conducted in the presence and absence of estuarine bottom sediments to address the role of sediment resuspension on dissolved...