Structure of Topogeochores and Modern Landscape-Geochemical Processes

  • Yury M. Semenov
Part of the Landscape Series book series (LAEC, volume 26)


Radial differentiation of matter is a strong control over the differentiation of geosystems. Our research in steppes and dry steppes of South Siberia showed that the structure of geochores (heterogeneous geosystems) at topological level and landscape-geochemical processes are densely interrelated and control each other. Each hierarchical level of geomers (homogeneous geosystems) is characterized by the corresponding range of matter stock increasing at the higher hierarchical levels. Within taxons, the geomers differ in stock of chemical elements or their radial differentiation. Integration of geomers is ensured by lateral matter flows. Each rank order of topogeochores has certain ranks of corresponding geomers with certain limits of matter stock variability. The interfluve catenary and slope microgeochores have negative budget of matter differentiation with dominance of lateral flows over radial ones. Matter output from slope geosystems depends on steepness, properties of soils, and parent rocks. Positional-dynamical automorphic microgeochores on slopes and semi-hydromorphic super-aqual microgeochores often have zero balance. Hydromorphic super-aqual microgeochores are characterized by positive balance with dominance of radial flows. Micro-basin super-aqual and sub-aqual halomorphic microgeochores have positive balance with prevalence of lateral flows. Step-by-step integration of geochores (regionalization) should be based on basin landscape-geochemical synthesis.


South Siberia Steppe Geosystem Geomer Geochore Landscape-geochemical processes Matter differentiation 


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© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Yury M. Semenov
    • 1
  1. 1.Sochava Institute of Geography, Russian Academy of Sciences, Siberian BranchIrkutskRussia

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