搜索结果: 1-11 共查到“理学 nitrogen cycling”相关记录11条 . 查询时间(0.439 秒)
Direct determination of nitrogen cycling rates and pathways in Arctic fjord sediments (Svalbard, Norway)
pathways nitrogen cycling rates
2014/4/16
Results from a study of benthic nitrogen cycling in two Arctic fjords are presented. Intact sediment core
incubations were used to quantify net fluxes of dissolved inorganic nitrogen, organic nitroge...
Photolysis imprint in the nitrate stable isotope signal in snow and atmosphere of East Antarctica and implications for reactive nitrogen cycling
nitrate stable isotope signal snow atmosphere East Antarctica reactive nitrogen cycling
2009/11/19
The nitrogen (δ15N) and triple oxygen (δ17O and δ18O) isotopic composition of nitrate (NO3−) was measured year-round in the atmosphere and snow pits at Dome C, Antarctica (DC, 75.1° S, 123.3° E)...
NITROGEN CYCLING AND REMOVAL EFFICIENCY IN A RICE FIELD
nitrogen nitrogen cycle mass balance water quality
2009/10/13
The major sources and sinks of nitrogen (N) were calculated during the rice growth cycle in a lowland paddy field in Japan in order to better understand contamination of surface and groundwater. Depos...
Nitrogen cycling in a deep ocean margin sediment (Sagami Bay, Japan)
Nitrogen cycling deep ocean margin sediment Sagami Bay Japan
2014/4/18
On the basis of in situ NO3-1 microprofiles and chamber incubations complemented by laboratory-based assessments of anammox and denitrification we evaluate the nitrogen turnover of an ocean margin sed...
Nitrogen cycling in a deep ocean margin sediment (Sagami Bay, Japan)
a deep ocean margin sediment Nitrogen cycling
2014/4/18
On the basis of in situ NO{
3 microprofiles and chamber incubations complemented by laboratory-based
assessments of anammox and denitrification we evaluate the nitrogen turnover of an ocean margin s...
Mangrove tannins in aquatic ecosystems: Their fate and possible influence on dissolved organic carbon and nitrogen cycling
Mangrove tannins aquatic ecosystems fate possible influence dissolved organic carbon nitrogen cycling
2014/4/21
We describe the fate of mangrove leaf tannins in aquatic ecosystems and their possible influence on dissolved organic nitrogen (DON) cycling. Tannins were extracted and purified from senescent yellow ...
Mangrove tannins in aquatic ecosystems: Their fate and possible influence on dissolved organic carbon and nitrogen cycling
Mangrove tannins in aquatic ecosystems Their fate and possible influence on dissolved organic carbon nitrogen cycling
2014/4/18
We describe the fate of mangrove leaf tannins in aquatic ecosystems and their possible influence on dissolved organic nitrogen (DON) cycling. Tannins were extracted and purified from senescent yellow ...
Probing the microenvironment of freshwater sediment macrofauna: Implications of deposit-feeding and bioirrigation for nitrogen cycling
freshwater sediment macrofauna bioirrigation for nitrogen cycling
2014/5/5
The effect of sediment-dwelling macrofauna on nitrifying bacteria was investigated by direct probing in their
overlapping habitat, i.e., the upper few millimeters of freshwater sediments. Microsensor...
Nitrous oxide fluxes and nitrogen cycling along a pasture chronosequence in Central Amazonia,Brazil
Nitrous oxide fluxes nitrogen cycling pasture chronosequence Central Amazonia
2010/1/12
We studied nitrous oxide (N2O) fluxes and soil nitrogen (N) cycling following forest conversion to pasture in the central Amazon near Santarém, Pará, Brazil. Two undisturbed forest sites and 27 pastur...
Benthic metabolism and nitrogen cycling in a subtropical east Australian estuary (Brunswick): Temporal variability and controlling factors
Benthic metabolism nitrogen cycling subtropical east Australian estuary Temporal variability controlling factors
2014/5/8
We examined temporal variability in benthic metabolism and nitrogen (N) cycling in the subtropical Brunswick Estuary, Australia from December 2000 to December 2002. Benthic metabolism was tightly coup...
Massive developments of microbial mats following phytoplankton blooms in a naturally eutrophic bay: Implications for nitrogen cycling
microbial mats phytoplankton blooms naturally eutrophic bay nitrogen cycling
2014/6/9
Benthic nitrogen processes have received substantial attention because the release of nutrients from sediments can contribute to the requirements of pelagic primary production; their study can also gi...