FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2896670225> ?p ?o ?g. }

• W2896670225 endingPage "521" @default.
• W2896670225 startingPage "502" @default.
• W2896670225 abstract "Relatively little is known about the amount of time that lapses between the photosynthetic fixation of carbon by vascular land plants and its incorporation into the marine sedimentary record, yet the dynamics of terrestrial carbon sequestration have important implications for the carbon cycle. Vascular plant carbon may encounter multiple potential intermediate storage pools and transport trajectories, and the age of vascular plant carbon accumulating in marine sediments will reflect these different pre-depositional histories. Here, we examine down-core 14C profiles of higher plant leaf wax-derived fatty acids isolated from high fidelity sedimentary sequences spanning the so-called “bomb-spike”, and encompassing a ca. 60-degree latitudinal gradient from tropical (Cariaco Basin), temperate (Saanich Inlet), and polar (Mackenzie Delta) watersheds to constrain integrated vascular plant carbon storage/transport times (“residence times”). Using a modeling framework, we find that, in addition to a “young” (conditionally defined as < 50 y) carbon pool, an old pool of compounds comprises 49 to 78 % of the fractional contribution of organic carbon (OC) and exhibits variable ages reflective of the environmental setting. For the Mackenzie Delta sediments, we find a mean age of the old pool of 28 ky (±9.4, standard deviation), indicating extensive pre-aging in permafrost soils, whereas the old pools in Saanich Inlet and Cariaco Basin sediments are younger, 7.9 (±5.0) and 2.4 (±0.50) to 3.2 (±0.54) ky, respectively, indicating less protracted storage in terrestrial reservoirs. The “young” pool showed clear annual contributions for Saanich Inlet and Mackenzie Delta sediments (comprising 24% and 16% of this pool, respectively), likely reflecting episodic transport of OC from steep hillside slopes surrounding Saanich Inlet and annual spring flood deposition in the Mackenzie Delta, respectively. Contributions of 5–10 year old OC to the Cariaco Basin show a short delay of OC inflow, potentially related to transport time to the offshore basin. Modeling results also indicate that the Mackenzie Delta has an influx of young but decadal material (20–30 years of age), pointing to the presence of an intermediate reservoir. Overall, these results show that a significant fraction of vascular plant C undergoes pre-aging in terrestrial reservoirs prior to accumulation in deltaic and marine sediments. The age distribution, reflecting both storage and transport times, likely depends on landscape-specific factors such as local topography, hydrographic characteristics, and mean annual temperature of the catchment, all of which affect the degree of soil buildup and preservation. We show that catchment-specific carbon residence times across landscapes can vary by an order of magnitude, with important implications both for carbon cycle studies and for the interpretation of molecular terrestrial paleoclimate records preserved in sedimentary sequences." @default.
• W2896670225 created "2018-10-26" @default.
• W2896670225 creator A5019862798 @default.
• W2896670225 creator A5020797893 @default.
• W2896670225 creator A5023501632 @default.
• W2896670225 creator A5029547508 @default.
• W2896670225 creator A5034149386 @default.
• W2896670225 creator A5043939464 @default.
• W2896670225 creator A5044514984 @default.
• W2896670225 creator A5050164240 @default.
• W2896670225 creator A5062317991 @default.
• W2896670225 creator A5072255354 @default.
• W2896670225 creator A5078806202 @default.
• W2896670225 creator A5085438198 @default.
• W2896670225 creator A5089327434 @default.
• W2896670225 date "2019-01-01" @default.
• W2896670225 modified "2023-10-15" @default.
• W2896670225 title "Temporal deconvolution of vascular plant-derived fatty acids exported from terrestrial watersheds" @default.
• W2896670225 cites W1505462097 @default.
• W2896670225 cites W1527800246 @default.
• W2896670225 cites W1841833737 @default.
• W2896670225 cites W1927080046 @default.
• W2896670225 cites W1929920236 @default.
• W2896670225 cites W1937838860 @default.
• W2896670225 cites W1945170571 @default.
• W2896670225 cites W1963665739 @default.
• W2896670225 cites W1964566913 @default.
• W2896670225 cites W1965924604 @default.
• W2896670225 cites W1966388638 @default.
• W2896670225 cites W1967910721 @default.
• W2896670225 cites W1974564100 @default.
• W2896670225 cites W1977021702 @default.
• W2896670225 cites W1978435408 @default.
• W2896670225 cites W1979952692 @default.
• W2896670225 cites W1980753611 @default.
• W2896670225 cites W1982361138 @default.
• W2896670225 cites W1982364154 @default.
• W2896670225 cites W1986027670 @default.
• W2896670225 cites W1987274073 @default.
• W2896670225 cites W1987320830 @default.
• W2896670225 cites W1989701012 @default.
• W2896670225 cites W1990162765 @default.
• W2896670225 cites W1991293285 @default.
• W2896670225 cites W1995336154 @default.
• W2896670225 cites W1996260543 @default.
• W2896670225 cites W1997565617 @default.
• W2896670225 cites W2002624323 @default.
• W2896670225 cites W2005896816 @default.
• W2896670225 cites W2006440058 @default.
• W2896670225 cites W2008410509 @default.
• W2896670225 cites W2009607369 @default.
• W2896670225 cites W2016976886 @default.
• W2896670225 cites W2017037148 @default.
• W2896670225 cites W2018370639 @default.
• W2896670225 cites W2020359599 @default.
• W2896670225 cites W2020616202 @default.
• W2896670225 cites W2020873526 @default.
• W2896670225 cites W2024716609 @default.
• W2896670225 cites W2029333538 @default.
• W2896670225 cites W2038281478 @default.
• W2896670225 cites W2040140061 @default.
• W2896670225 cites W2043110792 @default.
• W2896670225 cites W2052395469 @default.
• W2896670225 cites W2052749319 @default.
• W2896670225 cites W2053806039 @default.
• W2896670225 cites W2054160444 @default.
• W2896670225 cites W2054826898 @default.
• W2896670225 cites W2056570381 @default.
• W2896670225 cites W2059114426 @default.
• W2896670225 cites W2059586113 @default.
• W2896670225 cites W2067565758 @default.
• W2896670225 cites W2076243370 @default.
• W2896670225 cites W2077279480 @default.
• W2896670225 cites W2083266142 @default.
• W2896670225 cites W2083943558 @default.
• W2896670225 cites W2084864707 @default.
• W2896670225 cites W2084952653 @default.
• W2896670225 cites W2089179947 @default.
• W2896670225 cites W2090511983 @default.
• W2896670225 cites W2093925820 @default.
• W2896670225 cites W2099316915 @default.
• W2896670225 cites W2100602335 @default.
• W2896670225 cites W2101779300 @default.
• W2896670225 cites W2108729347 @default.
• W2896670225 cites W2108934364 @default.
• W2896670225 cites W2112776483 @default.
• W2896670225 cites W2116130792 @default.
• W2896670225 cites W2117074834 @default.
• W2896670225 cites W2118813439 @default.
• W2896670225 cites W2126439933 @default.
• W2896670225 cites W2130633108 @default.
• W2896670225 cites W2134307611 @default.
• W2896670225 cites W2135608154 @default.
• W2896670225 cites W2136174425 @default.
• W2896670225 cites W2139388007 @default.
• W2896670225 cites W2140755258 @default.
• W2896670225 cites W2142507057 @default.
• W2896670225 cites W2152633338 @default.

• next