Tundra and Steppe Locations of Altai Highland Depressions: Features of Vegetation Community and Soil Cover and Their Thermal Regime

Chistyakov, К. V.; Amosov, Mikhail; Kurochkin, Yu. N.; Lessovaia, Sofia N.; Strelkov, Ivan; Tyusov, G. A.

doi:10.1134/s1995425521030045

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…The reasons are that these ecoregions have unfavorable conditions not only for tulips but for whole plant diversity. For example, the AAMT ecoregion is mostly considered as an alpine zone and consists of higher altitudes, a low temperature and widespread permafrost soil [49]. The next ecoregions are described as dry and cold, as having an extreme variability in temperature between winter and summer, as well as a richness in forest, plains and deserts, and territories [50][51][52][53].…”

Section: Ecoregional Distribution Of Tulips In Central Asiamentioning

confidence: 99%

Ecoregional and Phytogeographical Insights into the Distribution of Tulipa in the ‘Nature Imperiled’ Area of Central Asia for Effective Conservation

Asatulloev,

Dekhkonov,

Yusupov

et al. 2023

Diversity

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Tulipa L. (Liliaceae) comprises approximately 150 species. Although Central Asia, the main center of its diversity, includes around 66 species, detailed mapping of their distribution is limited and research on their ecoregional and phytogeographical dispersion is insufficient. This study aimed to map and analyze the distribution patterns of Tulipa across the Central Asian ecoregions and phytogeographical regions to identify potential hotspots for effective conservation efforts. The results identified the Gissaro-Alai open woodlands ecoregion, which hosts 41 species of Tulipa, as the leading hotspot ecoregion. The Ferghana Valley phytogeographical district (Afghano-Turkestan province) was found to be the most suitable habitat for 25 species of Tulipa. We also determined that altitude has a strong influence on the diversity of Tulipa and indicating increase of species richness as elevation rises. However, as elevation rises up from ca. 2000 m a.s.l. species richness also decreases slightly. An analysis of the distribution of sections of Tulipa in Central Asia revealed that around 61% of all species dwell in this area and that the sections Kolpakowskianae and Biflores, which have their greatest diversity of species, are specific to this area. The findings provide valuable insights into the distribution of Tulipa and allow for feasible recommendations and suggestions for their conservation.

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Section: Ecoregional Distribution Of Tulips In Central Asiamentioning

confidence: 99%

Ecoregional and Phytogeographical Insights into the Distribution of Tulipa in the ‘Nature Imperiled’ Area of Central Asia for Effective Conservation

Asatulloev,

Dekhkonov,

Yusupov

et al. 2023

Diversity

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“…Vegetation type can also affect soil carbon emissions [ 22 , 23 ]. Therefore, the ecological ecotone also requires consideration in studies of permafrost carbon release given that soil moisture levels, thermal regimes, and microhabitat types vary among ecological ecotones [ 24 ]. However, the response of soil carbon emissions and the bacterial community to the FTCs in different ecotones of permafrost regions are rarely known.…”

Section: Introductionmentioning

confidence: 99%

Response of Carbon Emissions and the Bacterial Community to Freeze–Thaw Cycles in a Permafrost-Affected Forest–Wetland Ecotone in Northeast China

Liu

Dong

et al. 2022

Microorganisms

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Climate warming can affect freeze–thaw cycle (FTCs) patterns in northern high-latitude regions and may affect permafrost carbon emissions. The response of carbon release and microbial communities to FTCs has not been well characterized. Here, we conducted laboratory incubation experiments to investigate the relationships among carbon emissions, bacterial community, and soil variables in a permafrost-affected forest–wetland ecotone in Northeast China. The emission rates of CO2 and CH4 increased during the FTCs. FTC amplitude, FTC frequency, and patch type had significant effects on carbon emissions. FTCs increased the contents of soil DOC, NH4+-N, and NO3--N but reduced bacterial alpha diversity. CO2 emissions were mainly affected by bacterial alpha diversity and composition, and the inorganic nitrogen content was the important factor affecting CH4 emissions. Our findings indicated that FTCs could significantly regulate CO2 and CH4 emissions by reducing bacterial community diversity and increasing the concentration of available soil substrates. Our findings shed new light on the microorganism-substrate mechanisms regulating the response patterns of the soil carbon cycle to FTCs in permafrost regions.

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Tundra and Steppe Locations of Altai Highland Depressions: Features of Vegetation Community and Soil Cover and Their Thermal Regime

Cited by 2 publications

References 8 publications

Ecoregional and Phytogeographical Insights into the Distribution of Tulipa in the ‘Nature Imperiled’ Area of Central Asia for Effective Conservation

Ecoregional and Phytogeographical Insights into the Distribution of Tulipa in the ‘Nature Imperiled’ Area of Central Asia for Effective Conservation

Response of Carbon Emissions and the Bacterial Community to Freeze–Thaw Cycles in a Permafrost-Affected Forest–Wetland Ecotone in Northeast China

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