FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2053797777> ?p ?o ?g. }

• W2053797777 endingPage "94" @default.
• W2053797777 startingPage "72" @default.
• W2053797777 abstract "Biogenic and pedogenic processes control silica cycling in grasslands growing on a soil chronosequence and dominated by strong seasonal variabilities of a Mediterranean climate. Shallow pore water Si, in spite of significant annual uptake and release by plant growth and dieback, exhibits only moderate seasonal fluctuations reflecting strong buffering from labile biogenic Si, dominated by phytoliths and by secondary pedogenic silicates. Long phytolith residence times (340–900 yrs) reflect the seasonally dry climate and high solute Si concentrations. Water-extractable Si is closely associated with Al, indicating seasonal precipitation and dissolution of a highly labile 1:1 hydroxyaluminosilicate (HAS), probably allophane, which transforms in deeper soil into fine grained, poorly crystalline kaolinite. Shallow plant roots extract greater proportions of biogenic Si and deeper plant roots larger amounts pedogenic Si. High pore water Ge/Si in late winter and spring reflects the reinforcing effects of plant fractionation and concurrent dissolution of Ge-enriched HAS. The same processes produce pore waters with depleted 30Si/28Si. In the summer and fall, Ge/Si declines and 30Si/28Si increases, reflecting the cessation of plant uptake, continued dissolution of soil phytoliths and re-precipitation of less soluble HAS. Si inputs from weathering (2–90 mmol m−2 yr−1) and losses from pore water discharge (18–68 mM m−2 yr−1) are comparable for individual soils, decline with soil age and are significantly less than amounts of Si annual cycled through the vegetation (42–171 mM m−2 yr−1). Mobile Si is generally balanced in the soils with upward bio-pumping by the shallow-rooted grasses efficiently competing against downward leaching and pore water discharge. Small net annual increases in Si in the present day soils could not have been maintained over the time scale represented by the chronosequence (65–225 yrs), implying past changes in environmental conditions." @default.
• W2053797777 created "2016-06-24" @default.
• W2053797777 creator A5023994012 @default.
• W2053797777 creator A5035364631 @default.
• W2053797777 creator A5058041204 @default.
• W2053797777 creator A5061906453 @default.
• W2053797777 creator A5063127534 @default.
• W2053797777 creator A5066940723 @default.
• W2053797777 date "2012-10-01" @default.
• W2053797777 modified "2023-10-16" @default.
• W2053797777 title "Biogenic and pedogenic controls on Si distributions and cycling in grasslands of the Santa Cruz soil chronosequence, California" @default.
• W2053797777 cites W1517549260 @default.
• W2053797777 cites W177330557 @default.
• W2053797777 cites W1822363357 @default.
• W2053797777 cites W1836344216 @default.
• W2053797777 cites W1966952555 @default.
• W2053797777 cites W1969348308 @default.
• W2053797777 cites W1970174202 @default.
• W2053797777 cites W1971008779 @default.
• W2053797777 cites W1972074785 @default.
• W2053797777 cites W1974916723 @default.
• W2053797777 cites W1983639337 @default.
• W2053797777 cites W1984417923 @default.
• W2053797777 cites W1987126064 @default.
• W2053797777 cites W1988106191 @default.
• W2053797777 cites W1991531753 @default.
• W2053797777 cites W1992335325 @default.
• W2053797777 cites W1993559918 @default.
• W2053797777 cites W1996762042 @default.
• W2053797777 cites W2000509178 @default.
• W2053797777 cites W2003574015 @default.
• W2053797777 cites W2005165135 @default.
• W2053797777 cites W2007195588 @default.
• W2053797777 cites W2011006776 @default.
• W2053797777 cites W2012494839 @default.
• W2053797777 cites W2013871225 @default.
• W2053797777 cites W2017379696 @default.
• W2053797777 cites W2018892107 @default.
• W2053797777 cites W2023788374 @default.
• W2053797777 cites W2023845087 @default.
• W2053797777 cites W2033057613 @default.
• W2053797777 cites W2033441569 @default.
• W2053797777 cites W2035811512 @default.
• W2053797777 cites W2036013959 @default.
• W2053797777 cites W2039807032 @default.
• W2053797777 cites W2041926424 @default.
• W2053797777 cites W2042448116 @default.
• W2053797777 cites W2042719436 @default.
• W2053797777 cites W2042950888 @default.
• W2053797777 cites W2044950681 @default.
• W2053797777 cites W2048879062 @default.
• W2053797777 cites W2050492208 @default.
• W2053797777 cites W2053627401 @default.
• W2053797777 cites W2054320288 @default.
• W2053797777 cites W2054402757 @default.
• W2053797777 cites W2055853410 @default.
• W2053797777 cites W2056412401 @default.
• W2053797777 cites W2056434695 @default.
• W2053797777 cites W2058671335 @default.
• W2053797777 cites W2060207812 @default.
• W2053797777 cites W2060615439 @default.
• W2053797777 cites W2060620507 @default.
• W2053797777 cites W2060626360 @default.
• W2053797777 cites W2061808410 @default.
• W2053797777 cites W2061887884 @default.
• W2053797777 cites W2074632882 @default.
• W2053797777 cites W2077521389 @default.
• W2053797777 cites W2077965675 @default.
• W2053797777 cites W2080658414 @default.
• W2053797777 cites W2081993348 @default.
• W2053797777 cites W2083225699 @default.
• W2053797777 cites W2084219622 @default.
• W2053797777 cites W2085869834 @default.
• W2053797777 cites W2086512556 @default.
• W2053797777 cites W2090324758 @default.
• W2053797777 cites W2094721775 @default.
• W2053797777 cites W2097828895 @default.
• W2053797777 cites W2099481653 @default.
• W2053797777 cites W2100353142 @default.
• W2053797777 cites W2105660991 @default.
• W2053797777 cites W2108378958 @default.
• W2053797777 cites W2111455782 @default.
• W2053797777 cites W2115426679 @default.
• W2053797777 cites W2115761603 @default.
• W2053797777 cites W2117765329 @default.
• W2053797777 cites W2124781550 @default.
• W2053797777 cites W2125032547 @default.
• W2053797777 cites W2137234291 @default.
• W2053797777 cites W2138983719 @default.
• W2053797777 cites W2139308028 @default.
• W2053797777 cites W2142032976 @default.
• W2053797777 cites W2143406107 @default.
• W2053797777 cites W2151810991 @default.
• W2053797777 cites W2160851015 @default.
• W2053797777 cites W2325518977 @default.
• W2053797777 cites W2327280858 @default.
• W2053797777 cites W4244552573 @default.
• W2053797777 cites W4247226687 @default.

• next