The retention of organic matter in soils

The turnover of C in soils is controlled mainly by water regimes and temperature, but is modified by factors such as size and physicochemical properties of C additions in litter or root systems, distribution of C throughout the soil as root systems, or addition as litter, distribution of C within the soil matrix and its interaction with clay surfaces.Soil factors which retard mineralization of C in soils are identified from correlations of C contents of soils with other properties such as clay content and base status. The rate and extent of C mineralization depends on the chemistry of the added organic matter and interaction with clays of the microbial biomass and metabolites.The organomineral interactions are shown to depend on cation bridges involving mainly Ca in neutral to alkaline soils, Al in acid soils and adsorption of organic materials on iron oxide surfaces. The various organomineral interactions lead to aggregations of clay particles and organic materials, which stabilizes both soil structure and the carbon compounds within the aggregates.

[1]  A. Rovira,et al.  Ultrastructure of the root-soil interface , 1983 .

[2]  Robert B. Cook,et al.  The major biogeochemical cycles and their interactions (Scope Report 21) , 1983 .

[3]  J. W. Parsons,et al.  Studies of nitrogen immobilization and mineralization in calcareous soils—II: Mineralization of immobilized nitrogen from soil fractions of different particle size and density , 1977 .

[4]  V. Farmer,et al.  Against an aromatic structure for soil fulvic acid , 1985, Nature.

[5]  C. C. Grier,et al.  Above- and below-ground net production in 40-year-old Douglas-fir stands on low and high productivity sites , 1981 .

[6]  O. Kadeba.  ORGANIC MATTER STATUS OF SOME SAVANNA SOILS OF NORTHERN NIGERIA , 1978 .

[7]  J. Tisdall,et al.  Organic matter and water‐stable aggregates in soils , 1982 .

[8]  M. Kononova.  Soil Organic Matter , 1963 .

[9]  J. Tisdall,et al.  Stabilization of Soil Aggregates by the Root Systems of Ryegrass , 1979 .

[10]  C. Calmon,et al.  Book reviewHumic substances in soil, sediment and water: by G.R. Aiken, D.M. McKnight, R.L. Wersham and P. McCarthy (Eds.), John Wiley and Sons, New York, 1985, xiii + 692 pages, $59.95 , 1986 .

[11]  H. Keith,et al.  Input of carbon to soil from wheat plants , 1986 .

[12]  M. J. Jones,et al.  THE ORGANIC MATTER CONTENT OF THE SAVANNA SOILS OF WEST AFRICA , 1973 .

[13]  H. W. Hunt,et al.  Concepts of soil organic matter transformations in relation to organo-mineral particle size fractions , 1984 .

[14]  B. Theng.  Interactions between montmorillonite and fulvic acid , 1976 .

[15]  J. V. Veen,et al.  Turnover of carbon and nitrogen through the microbial biomass in a sandy loam and a clay soil incubated with [14C(U)]glucose and [15N](NH4)2So4 under different moisture regimes , 1985 .

[16]  D. Anderson,et al.  Organo-Mineral Complexes and Their Study by Radiocarbon Dating1 , 1984 .

[17]  R. Dalal,et al.  Long term trends in fertility of soils under continuous cultivation and cereal cropping in southern Queensland. III. Distribution and kinetics of soil organic carbon in particle size fractions , 1986 .

[18]  L. H. Sørensen.  The influence of clay on the rate of decay of amino acid metabolites synthesized in soils during decomposition of cellulose , 1975 .

[19]  K. Vogt,et al.  Biomass distribution and above- and below-ground production in young and mature Abiesamabilis zone ecosystems of the Washington Cascades , 1981 .

[20]  D. S. Jenkinson,et al.  THE TURNOVER OF SOIL ORGANIC MATTER IN SOME OF THE ROTHAMSTED CLASSICAL EXPERIMENTS , 1977 .

[21]  J. Stewart,et al.  Particle-size fractions and their use in studies of soil organic matter , 1983 .

[22]  J. Oades,et al.  Microbial biomass formed from 14C, 15N-labelled plant material decomposing in soils in the field , 1981 .

[23]  R. C. Foster.  In situ Localization of Organic Matter in Soils , 1985 .

[24]  Michael A. Wilson,et al.  Characterization of organic matter in particle size and density fractions from a red-brown earth by solid state 13C NMR , 1987 .

[25]  B. Theng.  Soils with Variable Change , 1982 .

[26]  J. B. Peterson.  Calcium Linkage, a Mechanism in Soil Granulation1 , 1948 .

[27]  C. A. Campbell.  Chapter 5 Soil Organic Carbon, Nitrogen and Fertility , 1978 .

[28]  Stephan Kempe,et al.  Global carbon cycle: SCOPE 13 , 1979 .

[29]  F. J. Stevenson.  HUmus Chemistry Genesis, Composition, Reactions , 1982 .

[30]  James P. Martin,et al.  Decomposition of 14C-labeled lignins, model humic acid polymers, and fungal melanins in allophanic soils , 1982 .

[31]  R. Jackman.  Accumulation of organic matter in some New Zealand soils under permanent pasture , 1964 .

[32]  E. John Russell.  Soil Conditions and Plant Growth , 1951 .

[33]  J. Oades,et al.  Extraction and characterization of water–repellent materials from Australian soils , 1988 .

[34]  L. H. Sørensen,et al.  Carbon-nitrogen relationships during the humification of cellulose in soils containing different amounts of clay , 1981 .

[35]  J. Martín,et al.  Decomposition of Specifically Carbon-14 Labeled Benzoic and Cinnamic Acid Derivatives in Soil 1 , 1975 .

[36]  D. Jenkinson,et al.  Microbial biomass in soil: measurement and turnover. , 1981 .

[37]  J. Oades,et al.  Decomposition of plant material in Australian soils. III. Residual organic and microbial biomass C and N from isotope-labelled legume material and soil organic matter, decomposing under field conditions , 1985 .

[38]  B. Theng.  Formation and properties of clay-polymer complexes , 1979 .

[39]  R. Dalal,et al.  Long-term trends in fertility of soils under continuous cultivation and cereal cropping in southern queensland. ii* Total organic carbon and its rate of loss from the soil profile , 1986 .

[40]  B. J. O'brien.  Soil organic carbon fluxes abd turnover rates estimated from radiocarbon enrichments , 1984 .

[41]  James P. Martin,et al.  Decomposition of 14C-labeled glucose, plant and microbial products and phenols in volcanic ash-derived soils of chile , 1982 .

[42]  W. Schlesinger.  Carbon Balance in Terrestrial Detritus , 1977 .

[43]  J. Beek,et al.  Developments in Soil Science , 2019, Global Change and Forest Soils.

[44]  J. Oades.  Soil organic matter and structural stability: mechanisms and implications for management , 1984 .

[45]  Bert Bolin,et al.  The carbon cycle. , 1970, Scientific American.

[46]  J. Oades,et al.  Fractionation of organo-mineral complexes by sedimentation and density techniques , 1979 .

[47]  J. Singh,et al.  SEASONAL VARIATION IN COMPOSITION, PLANT BIOMASS, AND NET PRIMARY PRODUCTIVITY OF A TROPICAL GRASSLAND AT KURUKSHETRA, INDIA' , 1974 .

[48]  André Mariotti,et al.  Natural 13C abundance as a tracer for studies of soil organic matter dynamics , 1987 .