Soils, mineral

Huang JH, Matzner E (2004a) Adsorption and desorption of organotin compounds in organic and mineral soils. European Journal of Soil Science, 55(4) 693-698. 

Frost R.R., Griffin R.A. Effect of pH on adsorption of arsenic and selenium from landfill leachate by clay minerals. Soil Sci Soc Am J 1977 41 53-57. 

Martinez C.E., Motto H.L. Solubility of lead, zinc and copper added to mineral soils. Environ Pollut 2000 107 153-158. 

Materials required Organic or mineral soil, ethylacetate, methanol, anhydrous Na2C03, cone. HC1, 2N HC1, and 2N NaOH (HPLC grade), distilled water, N2, graduated tube, flasks of 100 ml, filter paper, funnels, separatory funnels, Soxhlet apparatus, rotary evaporator, shaker, mill, sieve of 0.5 mm in diameter, water bath, pipette of 1,2 and 10 ml, test tube of 20 ml, distilled water. 

Krishnamurti GSR, Wang MK, Huang PM (2004) Effects of pyrollogol on Al13 tridecamer formation and humification. Clays Clay Miner 52 734-741 Kumada K, Kato H (1970) Browning of pyrogallol as catalyzed by clay minerals. Soil Sci Plant Nutr 16 195-200... 

Shindo H, Huang PM (1985b) Catalytic polymerization of hydroquinone by primary minerals. Soil Sci 139 505-511... 

Frost RR, Griffin RA (1977) Effect of pH on adsorption of As and selenium from land fill leachate by clay minerals. Soil Sci Soc Am J 41 53—57 Goh K-H, Lym TT (2005) Arsenic fractionation in a fine soil fraction and influence of various anions on its mobility in the sub surface environment. Appl Geochem 20 229-239... 

Boone RD (1994) Light-fraction soil organic matter origin and contribution to net nitrogen mineralization. Soil Biol Biochem 26 1459-1468... 

England, muscle shrews from mineral soils vs. peaty soils ... 

In many northern regions, peat bogs are widespread. Our study shows that peat groundwater can have geochemical responses consistent with its interaction with kimberlite rocks (Sader et al. 2007). The geochemical responses can be different from those in mineral soil. Therefore, exploration in peat bog terrains requires specific sampling methods. 

Soil (L, F, H, and A layers), mosses and fungal fruiting bodies were each collected from the same spots at the three locations. The L, F, H samples were ground to pass a 1 cm sieve the mineral soil was sieved to retain its fine-earth 2mm fraction mosses were separated into green versus dead tissues the fruiting bodies were separated by stalk and cap. Subsamples were freeze-dried prior to... 

In soils of non-agricultural ecosystems, above ground biomass (foliar uptake) and metal cycling is considered important (see Figure 8), due to large impact on the metal distribution in the humus layer and mineral soil profile. Especially in soils of Forest ecosystems, it may affect the accumulation in the humus layer, which is considered a very relevant compartment regarding the calculation of a critical load. In these soils, however, a steady-state element cycle is assumed, which implies that mineralization, Minj, equals litterfall, Mjf. 

The regulation of biogeochemical cycles by microbial populations is of most direct importance in the cycling of N, S, P, and C. Most of the ecosystem pool of these elements resides as organic forms in forest floor and mineral soil compartments. These organic complexes are subjected to microbial transformations, which regulate nitrate, sulfate and phosphate ions dynamics and availability. In turn, this influences indirectly... 

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