Search
Search Results
-
Atmospheric wet and dry deposition of dissolved inorganic nitrogen to the South China Sea
At the global scale, atmospheric inputs of nitrogen are an important source of the new nitrogen that supports new marine production, especially in...
-
Integrated isotope and microbiome analysis indicates dominance of denitrification in N2O production after rewetting of drained fen peat
Peatlands are an important source of nitrous oxide (N 2 O) emissions, which is a potent greenhouse gas and is also involved in the depletion of...
-
Phosphorus fluxes in two contrasting forest soils along preferential pathways after experimental N and P additions
The assessment of impacts of an altered nutrient availability, e.g. as caused by consistently high atmospheric nitrogen (N) deposition, on ecosystem...
-
Nitrogen wet deposition stoichiometry: the role of organic nitrogen, seasonality, and snow
Wet deposition of dissolved inorganic nitrogen (N) is declining nationally, accompanied by a shift in stoichiometry from predominantly oxidized to...
-
Global trends of ocean CO2 sink and ocean acidification: an observation-based reconstruction of surface ocean inorganic carbon variables
Ocean acidification is likely to impact marine ecosystems and human societies adversely and is a carbon cycle issue of great concern. Projecting the...
-
Nutrient and dissolved inorganic carbon variability in the North Pacific
A compilation of surface water nutrient (phosphate, nitrate, and silicate) and partial pressure of CO 2 ( p CO 2 ) observations from 1961 to 2016 reveals...
-
Retention and partitioning of 15N-labeled deposited N in a tropical plantation forest
The effects of deposited nitrogen (N) on forest ecosystems largely depend on the amount of N retained in the ecosystems and its partitioning among...
-
Nitrogen fixation facilitates stream microbial mat biomass across the McMurdo Dry Valleys, Antarctica
Nitrogen (N) fixation is a fundamental mechanism by which N enters streams. Yet, because of modern N saturation, it is difficult to study the...
-
Heterogeneity in habitat and nutrient availability facilitate the co-occurrence of N2 fixation and denitrification across wetland–stream–lake ecotones of Lakes Superior and Huron
Great Lakes coastlines are mosaics of wetland, stream, and lake habitats, characterized by a high degree of spatial heterogeneity that may facilitate...
-
Methane Fluxes from a Rich Fen: Relations with the Hydrochemistry and the Dissolved Carbon Isotopic Composition
AbstractIn the framework of the eutrophic Ob fen study, methane fluxes were measured by the chamber method, and water was sampled for the analysis of...
-
Microbial controls on symbiotic and free-living N2 fixation in subtropical Pueraria lobata communities, southwest China
Biological N 2 fixation (BNF) is a major pathway of external nitrogen input to terrestrial ecosystems. Nevertheless, the relative effects of...
-
Ecological impacts of N-deposition in a remote, high-elevation lake in the Three River Headwaters Region, Qinghai-Tibetan Plateau
This study provides a new record of nitrogen (N) deposition and ecological response at a remote, high-elevation lake within the ecologically fragile...
-
Appraisal of Coastal Water Quality of Two Hot Spots on Southwest Coast of India: A Case Study of Multi-Year Biogeochemical Observations
This study apprises the spatial and seasonal trends of coastal water quality factors using the multi-year physical, chemical, and biological...
-
Eutrophication of Jiangsu Coastal Water and Its Role in the Formation of Green Tide
Since 2007, the large-scale green tide caused by Ulva prolifera ( U. prolifera ) have occurred as a recurrent phenomenon in the southern Yellow Sea of...
-
Hydrogeological Control on Coalbed Methane Geochemistry in CO2/N2-Enriched Secondary Microbial Gas Areas: A Case Study in the Eastern Section of the Southern Junggar Basin, NW China
Secondary microbial gas accompanied by abnormally high CO 2 /N 2 concentrations is widely developed in the southern Junggar Basin (SJB). However, the...
-
Bacterial consumption of total and dissolved organic carbon in the Great Barrier Reef
Heterotrophic bacteria typically take up directly dissolved organic matter due to the small molecular size, although both particulate and dissolved...
-
Coupled δ15NTN and δ13CTOC Insights into Methane Seepage Activities in Bulk Marine Sediments of the Qiongdongnan Basin, South China Sea
Recently, methane seepage related to the dissociation of natural gas hydrates has attracted much attention, which has a significant impact on the...
-
Chemical dating of monazite: Testing of analytical protocol for U–Th–total Pb using CAMECA SXFive tactis EPMA at the National Centre for Earth Science Studies, Thiruvananthapuram, India
Major and trace element analyses of monazite by electron probe microanalyzer (EPMA) are routinely carried out for several decades. U–Th–total Pb...
-
New Data on the Chemical and Isotope (H, O, C, S, N) Compositions of Mineral Waters of the Essentuki Deposit
AbstractThis article presents modern data on the chemical and gas compositions, as well as the contents of the stable isotopes of oxygen, hydrogen,...
-
Spatial distribution and driving factors of sediment net nitrogen mineralization in riparian zone of the Three Gorges Reservoir
Inorganic nitrogen (N) loss through sediment N mineralization is important for eutrophication surrounding riparian zone. Sediment physicochemical...