Results 261 to 270 of about 187,551 (314)
Some of the next articles are maybe not open access.
Soil organic carbon across scales
Global Change Biology, 2015AbstractMechanistic understanding of scale effects is important for interpreting the processes that control the global carbon cycle. Greater attention should be given to scale in soil organic carbon (SOC) science so that we can devise better policy to protect/enhance existing SOC stocks and ensure sustainable use of soils. Global issues such as climate
Sharon M. ORourke +3 more
openaire +2 more sources
Spectrophotometric determination of organic carbon in soil
Communications in Soil Science and Plant Analysis, 1992Abstract A detailed study was made of the well‐known organic carbon determination that is based on measuring the absorbance of the green chromium(III) complex generated when organic matter is oxidized by potassium dichromate in acidic medium. The green chromic colour proved to be unstable, turning slowly to a violet colour.
Walinga, I. +4 more
openaire +2 more sources
Determination of Organic Carbon and Carbonates in Soils
Soil Science Society of America Journal, 1967Abstract Procedure and apparatus for determining organic and inorganic carbon in soils are described. The digestion acids used differ from those used in common practice in containing no H 2 SO 4 .
J. U. Anderson, W. Harris
openaire +1 more source
Soil organic carbon distribution in roadside soils of Singapore
Chemosphere, 2016Soil is the largest pool of organic carbon in terrestrial systems and plays a key role in carbon cycle. Global population living in urban areas are increasing substantially; however, the effects of urbanization on soil carbon storage and distribution are largely unknown.
Subhadip, Ghosh +2 more
openaire +2 more sources
Soil Organic Matter and Soil Organic Carbon in Barito Delta
Sustainability (STPP) Theory, Practice and Policy, 2023Soil organic matter and soil organic carbon is essential indication of soil carbon stock in terrestrial ecosystem particularly in peatland. Spatial distribution of soil organic carbon and soil organic matter is primary assessment to predict future soil condition under climate change traits.
openaire +2 more sources
Organic Carbon in Soils of the World
Soil Science Society of America Journal, 1993Abstract The C stored in soils is nearly three times that in the aboveground biomass and approximately double that in the atmosphere. Reliable estimates have been difficult to obtain due to a lack of global data on kinds of soils and the amount of C in each soil.
Hari Eswaran +2 more
openaire +1 more source
Organic carbon and soil porosity
Australian Journal of Soil Research, 2003The %C within the top sandy 0.15 m of a sodic Hydrosol under native trees consisted of a constant %C in uncharged organic matter and a %C in negatively charged organic matter decreasing linearly with depth, as did the specific volume of the soil. The kaolinitic clay present was strongly bonded together.
W. W. Emerson, D. McGarry
openaire +1 more source
Determination of organic and inorganic carbon in soils by potentiometry
The Analyst, 1976A method is described for the direct, rapid and precise determination of 0–6 mg of organic and/or inorganic carbon in soils. The equivalent amount of carbon dioxide, liberated by improved combustion techniques, is absorbed and precipitated in a solution containing 2.50 mmol of sodium hydroxide and 0.96 mmol of barium chloride.
openaire +2 more sources
The determination of organic carbon in soils
The Journal of Agricultural Science, 1929(1) It is proposed to estimate the amount of organic carbon in soils by determining the amount of sulphur dioxide produced in the ordinary Kjeldahl digestion. The gaseous products of reaction are passed through standard iodine solution, and the excess iodine titrated with standard sodium thiosulphate.
G. W. Robinson, W. McLean, Rice Williams
openaire +1 more source