Nature of Inner Asia
Bibliographic description:
, , , , , IMPACTS OF WILDFIRE LOW-SEVERITY ON SOIL PROPERTIES IN SEMIARID FOREST ECOSYSTEMS OF WESTERN TRANSBAIKALIA // Nature of Inner Asia. - 2022. №4(22). . - С. 105-114.
Title:
IMPACTS OF WILDFIRE LOW-SEVERITY ON SOIL PROPERTIES IN SEMIARID FOREST ECOSYSTEMS OF WESTERN TRANSBAIKALIA
Financing:
The work was supported by projects: 0271-2021-0004, 0270-2021-0004.
Codes:
Annotation:
Impacts of wildfire low-severity on soil properties on 2 sampling plots of the dry pine forest in Western Transbaikalia are studied. Low-severity surface fires in the studied pine forests have a positive effect, since they activate the processes of litter decomposition and further dissolution of organic substances that provide soil and plants with accessible elements. Pyrogenic morphological features persist for a long period after a fire. These include the presence of black carbonaceous subhorizon at a depth of 14-14.5 cm, ocher mottles along the roots of burnt trees. These features are shown in the increased content of iron in the Tamm extract and exchangeable bases. This creates conditions for the fixation of humus associated with both calcium and iron hydroxides. Also there is a slight increase in the content of the clay fraction. Two years after the fire the properties of the soil change significantly. Eleven years after the fire, most soil properties are quickly restored to pre-fire levels.
Keywords:
semiarid ecosystems, wildfire low-severity, forest litter, soil properties.
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Badía D. & Martí C. Plant ash and heat intensity effects on chemical and physical properties of two contrasting soils // Arid Land Research and Management, 2003; 17: 23–41.
Certini G. Effects of fire on properties of forest soils: a review. Oecologia, 2005; 143: 1–10.
Dymov A. A., Startsev V. V., Milanovsky E. Yu., Valdes-Korovkin I. A., Farkho- dov Yu. R., Yudina A. V., Donnerhack O., Guggenberger G. Soils and soil organic matter transformations during the two years after a low-intensity surface fire (Subpolar Ural, Russia). Geoderma. 2021; 404.
Flannigan M. D., Awiro B. D., Logan K. A., Stocks B. J., Wotton B. M. Forest fires and climate change in the 21st century. Global Change, 2006; 11: 847–859.
Xue L., Qiajing L., Hongyue Ch. Effects of a wildfire on selected physical, chemical and biochemical soil properties in a Pinus massoniana forest in South China. Forests, 2014; 5: 2947–2966.
Krasnoschekov Yu. N. Postpyrogenic Variability of Litter in Mountain Forests of Baikal Region. Eurasian Soil Science, 2019; 52(3): 258–270.
Kulikov A. I., Ubugunov L. L., Mangataev A. Ts. Global climate change and its ecosystem consequences. Arid Ecosystems. 2014; 4: 135–141.
11. Maksimova E. & Abakumov E. Wildfire effects on ash composition and biological properties of soils in forest-steppe ecosystems of Russia. Environmental Earth Sciences. 2015; 74(5): 4395–4405.
Peel M. C., Finlayson B. L., McMahon T. A. Updated world map of the Köppen–Geiger climate classification. Hydrology and Earth System Sciences. 2007; 11: 1633–1644.
Pereira P., Rein G., Martin D. Past and present post-fire environments. Science of the Total Environment. 2016; 573: 1275–1277.
Rodin L. E., Remezov N. P., Bazilevich N. I. Methodological Recommendations for the Study of Dynamics and Biological Cycle in Hytocenoses. Leningrad : Nauka Publ., 1968. 143 p. [in Russ.]
Shakhmatova E. Yu., Ubugunov L. L., Sympilova D. P. Postfire transformations in pine forests in the Mid-Mountain part of the Selenga river basin (Western Transbaikalia). Geography and Natural Resources, 2021; 42(1). P. 44–50.
Sychev R. S., Bazarov A. V., and Badmaev N. B. The use of VEGA-Science meteorological data to study differences in fire hazard occurrence in the Baikal region arid and humid landscape // Sovremennye problemy distantsionnogo zondirovaniya zemli iz kosmosa, 2020; 17(3): 127–134.
Ubugunov L. L., Belozertseva I. A., Ubugunova V. I., Sorokovoi A. A. Ecological zona- tion of soils in the lake Baikal basin. Contemporary Problems of Ecology. 2019; 12(6): 524–533.
Ulery A. L., Graham R. C., Goforth B. R., Hubbert K. R. Fire effects on cation exchange capacity of California forest and woodland soils. Geoderma. 2017; 286: 125–130.
Vorobyeva L. A. Theory and practice of the chemical analysis of soils. Moscow : GEOS Publ., 2006. 400 p. [in Russ.]
Zavala L. M., Celis R. D. E., Jordan A. How wildfires affect soil properties. A brief review.
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