Results 61 to 70 of about 6,413 (228)
Abstract Enrichment patterns of the redox‐ and bio‐sensitive trace elements U, V, Cr, and Ni in margin sediments are essential for environmental reconstructions. However, their sedimentary accumulation pathways are not fully understood. While the accumulation of toxic trace elements like Cd, Hg, Pb, and Zn has been relatively well studied in fish ...
Frederik Gäng +4 more
wiley +1 more source
The net change in the carbon inventory of arctic tundra remains uncertain as global warming leads to shifts in arctic water and carbon cycles. To better understand the response of arctic tundra carbon to changes in winter precipitation amount, we ...
Karyn C. DeFranco +5 more
doaj +1 more source
Blue carbon storage and environmental influences in mangroves, Puerto Rico
Abstract Mangrove ecosystems are important coastal carbon sinks, with soil carbon storage strongly influenced by site‐specific hydrological, sedimentary, and climatic conditions. This study quantified soil carbon stocks in two mangrove systems in Puerto Rico—La Parguera and Laguna Grande—and evaluated the relative influence of hydrology, sediment ...
Jahnelle Howe +4 more
wiley +1 more source
The accumulation of 210Pb at Summit, Greenland since 1855
The decay corrected activity of 210Pb at the time of deposition shows considerable short term variability, but no clear seasonal or annual periodicity. 210Pb activity in surface snow at this site has averaged 0.7 pCi kg-1 since 1927, but the period 1915 ...
Dibb, Jack E.
core +1 more source
Storm Surge Barriers Reduce Seaward Sediment Supply to Lagoonal Estuaries
Abstract Numerical simulations with realistic forcing of fixed infrastructure for a proposed storm surge barrier for a lagoonal estuary, Jamaica Bay (New York, USA), are analyzed during typical forcing conditions to assess alterations to flow and sediment transport with the barrier open.
David K. Ralston +3 more
wiley +1 more source
210Pb Eesti välisõhus: aktiivsuskontsentratsioonid ja päritolu [PDF]
Väitekirja elektrooniline versioon ei sisalda publikatsioone.Maa sees on tema sünnist saadik mitmeid radioaktiivseid materjale, mis lagunevad millekski uueks, mis laguneb omakorda millekski järgmiseks, mis laguneb omakorda millekski jne.
Isakar, Kadri
core
A record of atmospheric 210Pb deposition in The Netherlands
The deposition flux of total atmospheric 210Pb has been measured at two sites in The Netherlands: Texel from 1992 to 1996 and Groningen from 1989 to 1994.
Beks, J.P. +5 more
core +1 more source
Bioturbation experiments in the Venice Lagoon [PDF]
Short experiments (14–21 days) were carried out during autumn 1998 and spring 1999 at one selected site of the Venice Lagoon to measure bioturbation activities and mixing rates, as well as to obtain quantitative information on benthos functionality ...
C. Mugnai +10 more
core +1 more source
An experimental search for a correlation between outdoor 222Rn concentration and 210Pb activity in air particulate samples [PDF]
This work was aimed to search for a correlation between outdoor 222Rn air concentration and 210Pb activity in particulate samples collected on a filter.
Tomarchio Elio A.G.
doaj +1 more source
Abstract To address for the first time the carbon budget of traditional salterns, we measured the diel, seasonal, and spatial variability of water‐air CO2‐eq fluxes (CH4 and CO2) and the Organic Carbon (OC) stock and burial rate in the sediment. Temperature, salinity, dissolved oxygen, pH and wind were assessed as potential environmental drivers of the
Ana Alexandre +9 more
wiley +1 more source

