Relationship between soil solution aluminium and low molecular weight organic acids in a conservation cropping system

1995 ◽  
Vol 171 (1) ◽  
pp. 193-197 ◽  
Author(s):  
W. J. Slattery ◽  
G. R. Morrison
Keyword(s):  
Molecular Weight ◽  
Organic Acids ◽  
Soil Solution ◽  
Cropping System ◽  
Low Molecular Weight

Improving the mining soil quality for a vegetation cover after addition of sewage sludges: Inorganic ions and low-molecular-weight organic acids in the soil solution

2015 ◽  
Vol 150 ◽  
pp. 216-225 ◽  
Author(s):  
Aránzazu Peña ◽  
Mª Dolores Mingorance ◽  
Ignacio Guzmán-Carrizosa ◽  
Antonio J. Fernández-Espinosa
Keyword(s):  
Molecular Weight ◽  
Organic Acids ◽  
Soil Quality ◽  
Soil Solution ◽  
Vegetation Cover ◽  
Inorganic Ions ◽  
Low Molecular Weight ◽  
Sewage Sludges ◽  
Mining Soil

Rapid turnover of organic acids in a Dystric Brunisol under a spruce–lichen forest in northern Saskatchewan, Canada

2013 ◽  
Vol 93 (3) ◽  
pp. 295-304 ◽  
Author(s):  
Kazumichi Fujii ◽  
Kokoro Morioka ◽  
Ryan Hangs ◽  
Shinya Funakawa ◽  
Takashi Kosaki ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Organic Acids ◽  
Soil Solution ◽  
Surface Soil ◽  
Microbial Respiration ◽  
Mineral Weathering ◽  
Low Molecular Weight ◽  
Rapid Turnover ◽  
C Cycle ◽  
Northern Saskatchewan

Fujii, K., Morioka, K., Hangs, R., Funakawa, S., Kosaki, and Anderson, D. W. 2013. Rapid turnover of organic acids in a Dystric Brunisol under a spruce–lichen forest in northern Saskatchewan, Canada. Can. J. Soil Sci. 93: 295–304. Organic acids released by lichen play an important role in mineral weathering and podzolization in the Boreal–Tundra transition zone of Canada; however, importance of low-molecular-weight organic acids in the soil carbon (C) cycle in the black spruce–lichen forests remains unclear. We examined soil solution composition and mineralization kinetics of 14C-radiolabelled oxalate and citrate to quantify the C fluxes from organic acid mineralization in a Dystric Brunisol under a spruce–lichen forest in northern Saskatchewan. Oxalate concentration in soil solution was greatest in the lichen layer, while the high levels of citrate were observed in the lichen and organic (O) layers to the Ae horizon with the lowest sorption capacity. Oxalate and citrate were rapidly mineralized within the lichen and O layers and had short mean residence times (0.5 to 2.7 h). Substantial C fluxes due to citrate mineralization were observed both within the lichen and O layers, but oxalate mineralization led to C flux in the lichen layer only. The contribution of citrate and oxalate to microbial respiration was large (up to 57%) in the surface soil layers. Citrate was the dominant substrate for microbial respiration of the surface soil; however, it appears that oxalate could also be an important microbial substrate within the lichen layer, at least in summer months. We conclude that the exudation of low-molecular-weight organic acids by lichenous fungi, followed by their rapid mineralization, could play an important role in the C cycles of the sandy soils under spruce–lichen forest.

Determination of low molecular weight organic acids in soil solution by HPLC

Talanta ◽  
1999 ◽  
Vol 48 (1) ◽  
pp. 173-179 ◽  
Author(s):  
P VANHEES ◽  
J DAHLEN ◽  
U LUNDSTROM ◽  
H BOREN ◽  
B ALLARD
Keyword(s):  
Molecular Weight ◽  
Organic Acids ◽  
Soil Solution ◽  
Low Molecular Weight

Aluminium speciation in forest soil solution — modelling the contribution of low molecular weight organic acids

2001 ◽  
Vol 278 (1-3) ◽  
pp. 215-229 ◽  
Author(s):  
Patrick A.W van Hees ◽  
Edward Tipping ◽  
Ulla S Lundström
Keyword(s):  
Molecular Weight ◽  
Organic Acids ◽  
Forest Soil ◽  
Soil Solution ◽  
Low Molecular Weight ◽  
Aluminium Speciation

Effect of low-molecular-weight organic acids on the distribution of mobilized Al between soil solution and solid phase

2006 ◽  
Vol 21 (10) ◽  
pp. 1750-1759 ◽  
Author(s):  
Jiuyu Li ◽  
Renkou Xu ◽  
Diwakar Tiwari ◽  
Guoliang Ji
Keyword(s):  
Molecular Weight ◽  
Organic Acids ◽  
Soil Solution ◽  
Solid Phase ◽  
Low Molecular Weight

Seven years of repeated cattle manure addition to eroded Chinese Mollisols increase low-molecular-weight organic acids in soil solution

2013 ◽  
Vol 369 (1-2) ◽  
pp. 577-584 ◽  
Author(s):  
Shu-jie Miao ◽  
Hai Shi ◽  
Guang-hua Wang ◽  
Jian Jin ◽  
Ju-dong Liu ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Organic Acids ◽  
Soil Solution ◽  
Cattle Manure ◽  
Low Molecular Weight

Production of dissolved organic carbon and low-molecular weight organic acids in soil solution driven by recent tree photosynthate

2007 ◽  
Vol 84 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Reiner Giesler ◽  
Mona N. Högberg ◽  
Bjarne W. Strobel ◽  
Andreas Richter ◽  
Anders Nordgren ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Organic Acids ◽  
Soil Solution ◽  
Low Molecular Weight
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