Section

Physical geography and biogeography, soil geography and landscape geochemistry

Title

PARAMETERS OF THE DETRITAL BRANCH OF A SMALL BIOLOGICAL CYCLE AS A BASIS FOR DETERMINING THE STABILITY OF SOIL-PHYTOCENOTIC ECOSYSTEMS WITH DIFFERENT LITTER STOCKS

Сontributors

N. V. Popova, Ph. D. (Geography), All-Rissian branch association of employers ECOSFERA.

Abstract

In the study the ideas of N. I. Bazilevich: with the use of modern methods, a map of the geographical patterns of litter stock distribution and a map of the types of functioning (stability) of ecosystems were developed, an analysis of the parameters of a small biological cycle in which the main role belongs to the ground organic horizon was carried out, the possibility of using these data for the diagnosis of ecosystem stability was studied. The assessment of soil organogenic horizons of soil-phytocenotic ecosystems, taking into account the general regularities of the small biological cycle, in particular, its detrital branch, is made by the parameters of the release rate of chemical elements, the annual degradation coefficient, the value of the litter-fall ratio, the release rate of chemical elements.

With the help of a system of methods, a scale for indicating the stability of soil-phytocenotic ecosystems was constructed on the basis of the most informative parameters of ground organic horizons, which allows modeling the amount oflitter stocks in those areas of land where such data are absent, to forecast the stability of ecosystems by one or several parameters of a small biological cycle for solving problems of rational nature management.

Keywords

litter, geographical regularities, stability, ecological niches, diagnostics.

References

1.  Bazilevich N. I., Rodin L. E. Dinamika organicheskogo veshhestva i biologicheskij krugovorot v osnovnyh tipah rasti- tel'nosti. Moscow, Nauka, 1965. [in Russian]

2.  Bazilevich N, I., Rodin L. E. Kartoshemy produktivnosti i biologicheskogo krugovorota glavnejshih tipov rastitel'nosti sushi Zemli. Izv. VGO, 1967, No. 3. [in Russian]

3.  Bazilevich N. I., Grebenshhikov O. S., Tishkov A. A. Ustojchivost' i dinamichnost' biogeocenozov. Geograficheskie zakon- omernosti struktury i funkcionirovanija jekosistem. Moscow, Nauka, 1986. [in Russian]

4.  Popova N. V. Metodika diagnostiki ustojchivosti jekosistem sushi po kolichestvennym i kachestvennym parametram organo- gennyh gorizontov pochv // Problemy okruzhajushhej sredy i racional'nogo prirodopol'zovanija, No. 10, 2005, s. 38—42. [in Russian]

5.  Popova N. V. Diagnostika ustojchivosti jekosistem s pomoshh'ju sistemy chislovyh pokazatelej // Jekonomika prirodopol'zo- vanija, No. 1, 2006, P. 45—49. [in Russian]

6.  Popova N. V. Metodika diagnostiki ustojchivosti jekosistem po kachestvennym i kolichestvennym parametrami organogennyh gorizontov // Problemy okruzhajushhej sredy i racional'nogo prirodopol'zovanija, No. 10, 2006, s. 85—88. [in Russian]

7.  Popova N. V. Ispol'zovanie parametrov malogo biologicheskogo krugovorota dlja ocenki stabil'nosti funkcionirovanija jeko-sistem // Vestnik RUDN. Serija “Jekologija i bezopasnost'zhiznedejatel'nosti”, No. 9, 2008. [in Russian]

8.  Popova N. V. Parametry malogo biologicheskogo krugovorota kak osnova dlja modelirovanija tipov funkcionirovanija jeko- sistem // Vestnik RUDN. Serija “Jekologija i bezopasnost'zhiznedejatel'nosti”, No. 2, 2009. [in Russian]