Influence of Spring Burns on the Properties of Humus Horizon of Chernozem in the Southeast of Western Siberia

Semenkov, I. N.; Lednev, S. A.; Klink, G. V.; Kasymov, D. P.; Agafontsev, M. V.; Kostrova, S. N.; Koroleva, T. V.

doi:10.1134/s1064229323603062

Cited by 2 publications

(3 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Pyrogenic dynamics of treeless communities are studied worldwide, e.g., sagebrush communities of Great Basin in North America [30][31][32], Mediterranean heathlands [33], meadows in Scandinavia [34][35][36], etc. However, such studies are far fewer than studies of pyrogenic succession in forests [37,38]. Central Asia is especially understudied in this aspect due to social-economic problems after the USSR breakup in the early 1990s [6].…”

Section: Discussionmentioning

confidence: 99%

Influence of Fires on Desert Plant Communities at the Chernye Zemli (SW Russia)

Klink,

Lednev,

Semenkov

et al. 2024

Fire

View full text Add to dashboard Cite

Understanding the rate and direction of pyrogenic succession in arid ecosystems, which depends on many factors, including the intensity of grazing and the frequency of pyrogenic expo-sure, will allow for more accurate predictions of the consequences of fire onplant communities, and will assist with better fire management. We studied the vegetation on 55 sites in and near the “Chernye Zemli” Natural Biosphere Reserve that burned at different times or were not affected by fires over the past 35 years and characterized the changes in vegetation cover associated with the impact of wildfire and grazing. The descriptions were grouped into chronological stages according to the time elapsed since the last fire, or into groups according to the frequency of fires. In pairwise comparison of the projective cover of plant species between chronological stages, it correlated most strongly between successive initial stages (for stages 1 and 2, p = 0.003, r = 0.73; for stages 2 and 3, p < 0.001, r = 0.78). Species with an initially higher projective cover were more likely to grow on plots in the first year after the fire: p < 0.03. Plots with rare and frequent fires had similar projective cover of individual species (r = 0.64, p < 0.001). We conclude that in the course of pyrogenic succession, communities are gradually replaced over at least ten years. At the same time, the composition of a plant community at the initial point of succession depends on the prevalence of species in the community before the fire. No fundamental effect of the frequency of fires on the composition of plant communities has been revealed.

show abstract

Section: Discussionmentioning

confidence: 99%

Influence of Fires on Desert Plant Communities at the Chernye Zemli (SW Russia)

Klink,

Lednev,

Semenkov

et al. 2024

Fire

View full text Add to dashboard Cite

show abstract

“…The average annual precipitation is 400 mm. This is the northernmost area of Chernozems in the Tomsk region, where these soils are sporadically found [25,26]. The loesslike loams of the Elovskaya suite serve as parent materials.…”

Section: Study Sitementioning

confidence: 99%

“…Work in each field season was carried out in the middle and second half of July (13-15 July 2021; 24-27 July 2022; 17-20 July 2023) before mowing of the background areas in the territory of the BEC. In parallel with the current study, the influence of fires on the properties of the uppermost part of the humus horizon of soils was assessed at the same experimental sites [26].…”

Section: Data Processingmentioning

confidence: 99%

Fire as a Factor in the Dynamics of Meadow Vegetation: A Model Experiment in Western Siberia

Lednev,

Kasymov,

Semenkov

et al. 2024

Fire

View full text Add to dashboard Cite

The state of meadow vegetation in areas with different ages of experimental spring burnout (from 1 to 12 years ago) was studied in the Tomsk region for 3 years. On experimental plots of 1 m2 and 100 m2 (small- and middle-scale levels, respectively), the dynamics of species richness, total projective cover of vegetation, and aboveground phytomass reserves were characterized, and the structure of communities was analyzed. It was revealed that a single fire in the spring significantly reduces species richness for small-scale plots and increases the total projective cover for middle-scale plots. Structural differences from control plots can be traced from 1 to 4 years for different characteristics. The effects of fire are more prominent for small-scale plots. To suppress tree growth and maintain the existence of meadows, grass fires seem to be a less effective practice than mowing. At the same time, the results obtained potentially allow us to consider prescribed burning as a tool for maintaining the stability of meadow plant communities in the south of Western Siberia, preventing them from becoming overgrown with tree undergrowth, in cases with a controlled frequency of burning and the use of appropriate fire safety measures.

show abstract

Influence of Spring Burns on the Properties of Humus Horizon of Chernozem in the Southeast of Western Siberia

Cited by 2 publications

References 34 publications

Influence of Fires on Desert Plant Communities at the Chernye Zemli (SW Russia)

Influence of Fires on Desert Plant Communities at the Chernye Zemli (SW Russia)

Fire as a Factor in the Dynamics of Meadow Vegetation: A Model Experiment in Western Siberia

Contact Info

Product

Resources

About