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Total carbon organic carbon and organic matter
D. W. Nelson,Lee E. Sommers +1 more
- pp 9221159539-5801982
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The article was published on 1983-02-03 and is currently open access. It has received 12173 citations till now. The article focuses on the topics: Organic matter & Carbon.read more
Citations
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Journal ArticleDOI
SoilGrids250m: Global gridded soil information based on machine learning
Tomislav Hengl,Jorge Mendes de Jesus,Gerard B. M. Heuvelink,Maria Ruiperez Gonzalez,Milan Kilibarda,Aleksandar Blagotić,Wei Shangguan,Marvin N. Wright,Xiaoyuan Geng,Bernhard Bauer-Marschallinger,Mario Guevara,Rodrigo Vargas,R. A. MacMillan,Niels H. Batjes,Johan G. B. Leenaars,Eloi Ribeiro,Ichsani Wheeler,Stephan Mantel,Bas Kempen +18 more
TL;DR: Improvements in the relative accuracy considering the amount of variation explained, in comparison to the previous version of SoilGrids at 1 km spatial resolution, range from 60 to 230%.
Book ChapterDOI
Carbonate and Gypsum
TL;DR: Inorganic carbonate in soil occurs predominantly as the sparingly soluble alkaline-earth carbonates, calcite (CaCOs) and dolomite (caMg(CO,),), which is usually the dominant form in active pedogenic environments as mentioned in this paper.
Journal ArticleDOI
Health risk from heavy metals via consumption of food crops in the vicinity of Dabaoshan mine, South China.
TL;DR: Estimated daily intake (EDI) and THQs for Cd and Pb of rice and vegetables exceeded the FAO/WHO permissible limit and bio-accumulation factors of heavy metals were significantly higher for leafy than for non-leafy vegetable.
Journal ArticleDOI
A critical review of the conventional SOC to SOM conversion factor
TL;DR: The conventional factor of 1.724, based on the assumption that soil organic matter contains 58% carbon, applies only to some soils or only to particular components of organic matter as mentioned in this paper.
Journal ArticleDOI
Persulfate oxidation for in situ remediation of TCE. I. Activated by ferrous ion with and without a persulfate-thiosulfate redox couple.
TL;DR: It appeared that Fe2+ played an important role in generating SO4-*.
References
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Journal ArticleDOI
An Examination of the Degtjareff Method for Determining Soil Organic Matter, and a Proposed Modification of the Chromic Acid Titration Method
A Walkley,I A Black +1 more
TL;DR: WALKLEY as discussed by the authors presented an extension of the DEGTJAas discussed by the authorsF METHOD for determining soil organic matter, and a proposed modification of the CHROMIC ACID TITRATION METHOD.
Journal ArticleDOI
a Critical Examination of a Rapid Method for Determining Organic Carbon in SOILS—EFFECT of Variations in Digestion Conditions and of Inorganic Soil Constituents
TL;DR: WALKLEY et al. as mentioned in this paper presented a critical analysis of a method for detecting organically enriched carbon in soils, in the context of variability in digestion conditions and inorganic soil constitutions.
Journal ArticleDOI
A rapid and precise method for routine determination of organic carbon in soil
J. C. Yeomans,J. M. Bremner +1 more
TL;DR: In this paper, a simple method for routine determination of organic carbon in soil by a modified Mebius procedure is described, which involves digestion of the soil sample with an acidified dichromate (K2Cr2O7•H2SO4) solution for 30 minutes in a Pyrex digestion tube in a 40-tube block digester preheated to 170°C.
Book ChapterDOI
Carbonate and Gypsum
TL;DR: Inorganic carbonate in soil occurs predominantly as the sparingly soluble alkaline-earth carbonates, calcite (CaCOs) and dolomite (caMg(CO,),), which is usually the dominant form in active pedogenic environments as mentioned in this paper.