Soil-Biogeochemical mapping

Soil-biogeochemical mapping can serve as a measure of soil sensitivi ty to pollution loading (Bashkin and Park, 1998). Let us consider biogeochemical properties and... 

The spatial heterogeneity of selenium content in rocks, various soils, and especially the peculiarities of its translocation from soils to plants, lead to the formation of so-called selenium biogeochemical provinces (see Chapter 7 Biogeochemical mapping ). These provinces are characterized by a deficient or excessive concentration of this trace metal in all links of biogeochemical food webs. Selenium deficiency in fodder crops is related to the less than 30 ppm content of this element (Table 8). This leads to myopatia (white colored animal tissues), necrotic degeneration of kidney, exude diathesis. The addition of sodium selenite is used for prevention of these diseases. 

System 6 soil-soil solution, air (IV) atmospheric air (III, 27) soil animals (VI) biological reactions of organisms, metabolism, exudes, including microbial exudes (VI) into soils (VI IV) into waters (II, 4b) into air as aerosols (III, 27). This system is very important for biogeochemical mapping but until now it has not been understood quantitatively. 

Figure 2. Bio geochemical mapping of the Chuvash administration region, Russia. Bio-geochemical regions 1—Pre-Kubnozivilsk, 2—Pre-Sura, 3—Pre-Volga, 4—Biogeochemical provinces—(a) silicon (b) fluorine, and(c) nitrate, Soils 5—Podzoluvisols, 6—Phaerozems, 7—Chernozems, 8—Arenosols.

Figure 2. The map of Ulug-Hemsk biogeochemical province with high-Se concentrations in biogeochemical food web. Se concentration, ppm 1—in soil 2-4, in plant 0.7-13.1 2—in soil 0.7-1.0, in plant 0.4-6.0 3—in soil 0.4-0.7, in plant 0.1-2.4 (Ermakov, 1993).

S., and Jacobsen, C. (2005). Near-edge X-ray absorption fine structure (NEXAFS) spectroscopy for mapping nano-scale distribution of organic carbon forms in soil Application to black carbon particles. Global Biogeochem. Cycles 19, GB1013. 

Figure 14. Schematic map of the Ankawan biogeochemical province with increasing content of molybdenum. 1—background area, soil Mo content is 3.1 ppm, soil Cu content is 34 ppm, plant Mo content is 0.61 ppm, plant Cu content is 4.0ppm, the Cu. Mo ratio in soil is 1-.0.09, in plant is 1 0.15 2—biogeochemical province, soil Mo content is 69ppm, soil Cu content is 50ppm, plant Mo content is 26ppm, plant Cu content 5.7ppm, the Cu Mo ratio in soil is 1 1.4, in plant is 1 4.6 (Kovalsky, 1981)...

Discuss the applicability of soil and ecosystems mapping for characterizing global and regional biogeochemical fluxes. 

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