Post-pyrogenic changes in the properties of grey forest podzolic soils of ecogeosystems of pine forests under conditions of anthropogenicloading


Keywords: pine forests, grass fires, biogenic pyrogenic horizons of soils, physical and chemical properties of soils, trace metals

Abstract

This article presents the analysis of results of experimental data of postpyrogenic change of soils of ecological systems of pine forests.Ground fires transform the surface organogenic horizons of soils. The negative influence of low-intensity fires of different intensity on the change of humus stock, qualitative fractional composition of organogenic soil horizons and their chemical composition is shown.Post-pyrogenic transformations of physical and chemical soil characteristics are found, which are not simply their corresponding reaction to the pyrogenic effect, but a clear signal reflecting the state of the soil immediately after the fire, taking into account its strength and intensity, and after a certain period of time. There is a certain dependence of the degree of pyrogenicity on the duration of the effect of fire on the soil. The recent influence of a medium intensity fire on the soil is marked by a clear reaction of the complex of its properties.Physical and chemical properties of soils after fires deteriorate: humus burns, the content of nitrate nitrogen decreases.Forest fires sharply change the morphological state of the upper part of the soil profile. The nature of the surface horizons of soils changes, a new pyrogenic horizon is formed, which differs from natural analogues in terms of physical and chemical properties and the content of ash elements. Under the influence of fire there are changes in such properties as: pH, content of exchange cations, gross and moving forms of nitrogen, etc.The heavy metal concentration in surface horizons increases several times and exceeds the background values due to the mineralization of forest litter and herbaceous vegetation from the combustion and subsequent migration of chemical elements , which presents an environmental hazard.The change in the chemical composition of soils can create conditions for the impossibility of the existence of a root ecosystem, its death, and development, after a certain time, of another modified ecogeosystem.

Author Biographies

V. Asotskyi
National University of Civil Defence of Ukraine
Y. Buts
Simon Kuznets Kharkiv National University of Economics
O. Kraynyuk
Kharkov National Automobile and Highway University
R. Ponomarenko
National University of Civil Defence of Ukraine

References

1. Aleksandrovskiy A.L. (2007) Pirogennoe karbonatoobrazovanie: rezultatyi pochvenno arheologicheskih issledovaniy [Pyrogenic carbonate formation: results of soil-archeological studies]Soil science, No. 5. 517-524 (inRussian).
2. Bento-Goncalves A. (2012) Fire and soil: key concepts and recent advances / A. Bento-Goncalves, A. Vieira, U. Xavier, D. Martin // Geoderma. Vol. 191. 3-13 (inEnglish).
3. Buts Y.V. (2013) Naslidki vplivu pirogennogo chinnika na vlastivosti gruntovogo pokrivu borovoyi terasi richki Udi [Consequences of the influence of the pyrogenic factor on the properties of the soil cover of pine terraces of the Uday river] Scientific Bulletin of Chernivtsi National University. Vol. 655: Geography. 16–20. (in Ukrainian).
4. Buts Y., Asotskyi V., Kraynyuk O., & Ponomarenko R. (2018). Influence of technogenic loading of pyrogenic origin on the geochemical migration of heavy metals.Magazine on geology, geography and ecology,27(1), 43-50. https://doi.org/https://doi.org/10.15421/111829(in English).
5. Chevyichelov A.P. (2002) Pirogenez i postpirogennyie transformatsii svoystv i sostava merzlotnyih pochv [Pyrogenesis and post-pyrogenic transformations of the properties and composition of permafrost soils] Siberian Ecological Journal. No3. 273-278(inRussian).
6. Doerr SH, Cerda A. (2005) Fire effects on soil system functioning: new insights and future challenges // International Journal of Wildland Fire. Vol. 14, № 4. 339–342 (inEnglish).
7. Dyimov A.A. Dubrovskiy Yu. A., Gabov D. N. (2014) Pirogennyie izmeneniya podzolov illyuvialno zhelezistyih (Srednyaya tayga, respublika Komi) [Pyrogenic changes of podzols ofilluvial ironbearingsoils (Middle Taiga, Komi Republic] Soil Science.No2. 144–154(in Russian).
8. Gongalskiy K.B. (2015) Zakonomernosti vosstanovleniya soobschestv pochvennyih zhivotnyih posle lesnyih pozharov [Regularities of restoration of communities of soil animals after forest fires] Diss. Dr. Biol. On special. 03.02.08 Ecology (Biological Sciences), Moscow. 306 (in Russian).
9. Gyininova A.B., Syimpilova D.P. (1999) Izmenenie svoystv dernovo-lesnyih pochv pod vliyaniem pozharov [Change in the properties of sod-forest soils under the influence of fires] Soil of Siberia, their use and protection. Novosibirsk. Publ.science120–124(inRussian).
10. Krasnoschekov Yu. N. (2014) Vliyanie pirogennogo faktora na serogumusovyie pochvyi sosnovyih lesov v Tsentralnoy ekologicheskoy zone Baykalskoy prirodnoy territorii [Influence of the pyrogenic factor on the serogumous soils of pine forests in the Central ecological zone of the Baikal natural area] Siberian Forest Journal. No 2. 43–52 (in Russian).
11. Nesgovorova N.P., Savelev V.G., Ivantsova G.V (2014) Izuchenie problemyi lesnyih pozharov kak faktora ekologicheskoy opasnosti: regionalnyiy aspekt [Ivantsova GV The study of the problem of forest fires as a factor of ecological danger: the regional aspect] Basic research. No №12. 1207– 1211 (in Russian).
12. Shahmatova E.Yu. (2008) Vliyanie lesnyih pozharov na trans- formatsiyu svoystv i evolyutsiyu lesnyih
pochv Zapadnogo Zabaykalya [Influence of forest fires on the transformation of properties and evolution of forest soils inWestern Transbaikalia] Fires in forest ecosystems in Siberia: nternational scientific-technical conference proceedings. Krasnoyarsk. 193-194(inRussian).
13. Shahmatova E.Yu. (2015) Pirogennost – otvetnaya reaktsiya pochv suhih sosnovyih lesov na vozdeystvie pozharov [Pyrogenicity - response of soils of dry pine forests to the impact of fires]// International Journal of Applied and Fundamental Research. No5. 260-264(inRussian).
14. Spirina V.Z., Soloveva T.P. (2014) Agrohimicheskie metodyi issledovaniya pochv, rasteniy i udobreniy [Agrochemical methods for studying soils, plants and fertilizers]. Tomsk: Tomsk State UniversityPubl.House.336 (in Russian).
15. Tsibart A.S. Gennadiev A.N. (2008) Vliyanie pozharov na svoystva lesnyih pochv Priamurya (Norskiy zapovednik) [Influence of fires on the properties of forest soils in Priamurye (Norsky Reserve)] Soil Science.No7. 783–792(inRussian).
Published
2018-11-02