Gleys

Used with B or C horizon g Gleyed or waterlogged soil... 

Fall D, Duval RA, Gleye C, Laurens A, Hocquemiller R. Chamuvarinin, an aceto-genin bearing a tetrahydropyran ring from the roots of Uvaria chamae. J Nat Prod 2004 67 1041-1043. 

Iron in the ferrous state is more soluble than iron in the ferric state. Indeed, in the ferric state, it is insoluble under most soil conditions. Under reducing conditions, ferrous iron may be leached out of soil, leaving it gray in color. This is the origin of the term gleying. 

The color of soil gives an indication of its oxidation-reduction conditions and the amount of OM present. Well-aerated soils will be under oxidizing conditions iron will be in the Fe3+ state, less soluble and thus less available for chemical reaction. Under water-saturated conditions, soil will be under reducing conditions as indicated by increased yellow colorings, gleying, and mottling. Iron will be in the Fe2+ state, which is more soluble and thus more available for chemical reaction. Under these conditions, reduced species such as methane (CH4), hydrogen, (H2), and sulfides will be found. 

Pigment Red 57, discovered in 1903 by R. Gley and O. Siebert at AGFA, developed into one of the most important organic pigments in the market. It was first supplied in the form of its yellowish red sodium salt, to be converted to the calcium or barium salt by the consumer. 

Bloomfield C. 1951. Experiments on the mechanism of gley formation. Journal of Soil Science 2 196-211. 

Brammer H, Brinkman R. 1977. Surface-water gley soils in Bangladesh environment, landforms and soil morphology. Geoderma 17 19-109. 

Brinkman R. 1977b. Surface-water Gley soils in Bangladesh. Genesis. Geoderma 17 111-144. 

Ottow ICG. 1973. Bacterial mechanism of iron reduction and gley formation. In Schlicht-ing E, Schwertmann U, eds. Pseudogley and Gley. Weinheim International Soil Science Society, 29-35. 

Groundwater and stagnant water soils (gleys and pseudogleys) and podzols of temperate and cool regions. Paddy soils. 

Cool, humid, redoximorphic Gleys, Pseudogleys Massive ferricretes, Bog iron ores Lake ores <0.1... 

A.S. Cutler E.J.B. (1985) Distribution of elements in some Fe-Mn nodules and an iron-pan in some gley soils of New Zealand. Geoderma 35 127-143... 

Schwertmann, U. (eds.) Pseudogley and gley. Trans. Comm. V VI Int. Soil Sci. Soc., VCH.Weinheim, 37-44 Fischer, W.R. (1976) Differenzierung oxalatlosli-cher Eisenoxide. Z. Pflanzenernahr. Bodenk. 

Schlichting, E. (1965) Die Raseneisenbildung in der nordwestdeutschen Podsol-Gley-Land-schaft. Chemie der Erde 24 11-26 Schmalz, R.F. (1959) Formation of red beds in modern and ancient deserts. Discussion. Geol. Soc. Am. Bull. 79 277-280 Schmidt, P.W. (1990) Small-angle scattering studies of disordered, porous and fractal systems. J. Appl. Cryst. 24 414-435 Schmucki, P. Virtanen, S. Davenport, A. Vitus, C.M. (1996) J. Electrochem. Soc. 144 ... 

Schwertmann, U. Taylor, R.M. (1973) The in vitro transformation of soil lepidocrocite to goethite. Pseudogley Gley, Trans. Comm. V VI Int. Soc. Soil Sd. Stuttgart-Hohenheim 1971 45-54... 

Plate 16.1 e) Root channel in a gley soil stained by Fe oxide, f) Bleaching of the surface layer of a red soil aggregate by microbial reduction of the hematite. See root mat at the aggregate s surface supplying the biomass. 

Lasserre, B., R. Kaiser, P. Huu Chanh, N. Ifansyah, J. Gleye, and C. Moulis. Effects on rats of aqueous extracts of plants used in folk medicine as antihypertensive agents. Naturwissen-schaften 1983 70(2) 95-96. Funayama, S., and H. Hikino. Hypotensive principles from plants. Het-erocycles 1981 15 1239-1256. 

Material from which solum is presumed to have formed. Lacks properties of solum weathered may be gleyed cemented and have accumulation of soluble salts. ... 

Gleyed layer with base colors near neutral. 

Fig. 1. Hypothetical soil profile chat has all principal horizons. Not all horizons shown are present in any given profile, but every profile has some of them. Terms used in diagram Eluviation is the downward movement of soluble or suspended material in a soil from the A horizon to the B horizon by groundwater percolation. The term refers especially, but not exclusively, lo the movement of colloids, whereas the term leaching refers lo the complete removal of soluble materials. Illuviation is the accumulation of soluble or suspended material in a lower soil horizon that was transported from an upper horizon by the process of eluviation. Gleying is soil mottling, caused by partial oxidation and reduction of its constituent ferric iron compounds, due to conditions of intermittent water saturation. Process is also called gleizalion (Adapted from USD A diagram)...

Soil orders Alf, alfisol And, andisol Cam, cambisol Gley, gleysol Hist, histosol Inc, inceptisol Moll, mollisol Ox, oxisol Spod, spodosol Ult, ultisol. 

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