The structure of plant communities in the dry steppes of Central Mongolia and their response to irrigation

Danzhalova, E. V.; Бажа, С. Н.; Ariunbold, E.

doi:10.1134/s2079096111030024

Cited by 6 publications

(5 citation statements)

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“…These plants are common in the arid regions of Central Asia and in the south of Mongolia (Gobi Desert) where they are being tested for potential use as fodder and medical plants with increased environmental capacity [8].…”

Section: Methodsmentioning

confidence: 99%

Xerophytic and halophytic shrubs as the main biomaterials for phytomeliorational resource-saving technologies in arid lands

Erdenegerel,

Enkhtaiwan,

Ulziibat

et al. 2023

Advances in Engineering Research

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In recent years, the attention of scientists from the arid territories of the world, including countries from Central Asia, has been attracted by the problem of studying and developing halophytes and xerophytes in culture. Among the flora of the Gobi Desert, there are plant species that can function normally and reproduce on settled soils or irrigation with mineralized water. Currently, in the world practice, there are two directions in the use of halophytes and xerophytes in agriculture: the first is the ecological restoration of degraded arid pasturelands without the use of irrigation. The second is the selection of promising species of halophytes and xerophytes and the development of a technology for their cultivation for the production of high-protein energy-saturated feed. One of the main reasons for the low efficiency of forest nursery management is the insufficient supply of soils with mineral nutrition elements and, foremost, with humus. Our aim was to develop and study the technology of obtaining a peat-free substrate with optimal agro-chemical parameters for growing standard mycorrhizae planting biomaterial halophytes and xerophytes with a closed root system. For growing standard seedlings of halophyte and xerophyte plant species with a closed root system, the quality of the substrate is of great importance. Currently, almost all the substrates used are prepared on the basis of peat. The use of the proposed peat-free substrates for growing coniferous seedlings with a closed root system will help to increase the yield of mycorrhiza standard planting material by optimizing the physical-chemical properties of the substrate.

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Section: Methodsmentioning

confidence: 99%

Xerophytic and halophytic shrubs as the main biomaterials for phytomeliorational resource-saving technologies in arid lands

Erdenegerel,

Enkhtaiwan,

Ulziibat

et al. 2023

Advances in Engineering Research

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“…For the steppes of Central Mongolia, it was also been shown that the accumulation of aboveground biomass depends on the moisture conditions of a particular year, and with an increase in moisture, plants of the Poaceae family predominate, while with a decrease, the proportion of Asteraceae increases (Bazha et al 2008). It has been pointed out that a prolonged lack of moisture and increased anthropogenic pressure on steppes can result not only in a decrease in the ecological characteristics of dominant species, but also in irreversible death of the indigenous inhabitants of the steppes (Danzhalova et al 2011).…”

Section: Changes In the Biodiversity Of Steppe Plants Associated With...mentioning

confidence: 99%

The Effect of Plant Biodiversity Changes on the Chemical Composition of Steppe Soils during Climate Aridization

Kudrevatykh

Kalinin²,

Mitenko³

2022

Preprint

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AimsIn time to the climate changes occurring in the recent decades, studies on the assessment of the influence of climatic factors on the changing natural ecosystems are becoming particularly relevant. This study assesses the relationship between vegetation response to climate aridization and the effect of these changes on soil properties, which is crucial for understanding the sustainability of steppe among the trend toward further global warming. Methods The study demonstrates the influence of climatic factors on the changes in plant biodiversity and biomass, the dynamics of the total stock and the rate of return of chemical elements to the upper soil horizons with the plant organic matter. The chemical composition of soils of different types of steppe was studied, and the effect of changes in vegetation cover on the variability of these soil parameters was estimated. Results The study revealed that during aridization in the steppe zone, there is a change in plant association, what lead to the biomass and bio-productivity of steppe decrease, and chemical elements associated with salts accumulate in soils (Ca, Mg, Na, S, Sr). The accumulation of Ca, K, Na, S, Cl by arid species leads to further degradation of the soil cover (salinization, forming of cambic horizon) and a decrease in its sustainability.Conclusions The data obtained will contribute to a better understanding of the role of plants in the sustainability of the soil cover of modern steppes, which is necessary to predict the response of landscapes to future climate changes.

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“…Sampling and measurement. Danzhalova et al [2011] described species diversity and composition, total coverage, aboveground biomass of plant communities and indicator species distribution as key indicators to determine stages of land degradation [Danzhalova et al, 2011;Bunning et al, 2016]. We assumed changes in vegetation cover, species composition, ecological group, phytocenosis origin of plant species and species diversity as main indicator of land degradation.…”

Section: Study Areamentioning

confidence: 99%

“…Particularly, cutting down trees without proper approach and massive tree cutting in an area with poor tree growths abandoning main dominant tree species and collecting hay every year causes loss of soil moisture and changes in forest area. 1 Danzhalova et al [2011] has revealed that plant community structure changed considerably the native steppe species including Agropyron cristatum, Stipa krylovii, Stipa gobica, Koeleria cristata, Cleistogenes squarrosa have ceded by digressively active (Artemisia adamsii, Artemisia frigida, and Ephedra sinica) and weedy (Artemisia scoparia, Artemisia pectinata) species. An analysis of the spatio-temporal distribution of the NDVI showed an increase in the areas with low index values (0.0-0.1) because of a decrease in the species composition, the loss of steppe herbage replaced by more xerophytic species [Zharnikova et al, 2018] in an arid zone of Mongolia including steppe and desert steppe.…”

Section: Introductionmentioning

confidence: 99%

Результаты Мониторинга Растительности Горно-Луговых Степей, Степных И Лесных Районов Монголии

Ахмади¹

2022

Природа Внутренней Азии Nature of Inner Asia

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Due to climate change and human activities plant community transformation occurred in Central Mongolia, and however it is a long-term process, there are some changes in vegetation community properties. Our research aim was to detect vegetation community change under anthropogenic activities at monitoring sites situated in the mountain meadow steppe, steppe, and forest based on data collected during 2011-2015. Vegetation community as regard of important component of ecosystem can be main indicator to detect the land degradation. We determined changes in vegetation cover, species composition, ecological group, phytocenosis origin of plant species and species diversity as main indicator of land degradation. Our study in selected monitoring points indicated possibility of mountainmeadow steppe change into mountain steppe, birch forest into meadow steppe, Siberian pine forest into mountain steppe in Khugnu-Tarna National Park. We suggest that this is due to climate change and drought occurrence.

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The structure of plant communities in the dry steppes of Central Mongolia and their response to irrigation

Cited by 6 publications

References 0 publications

Xerophytic and halophytic shrubs as the main biomaterials for phytomeliorational resource-saving technologies in arid lands

Xerophytic and halophytic shrubs as the main biomaterials for phytomeliorational resource-saving technologies in arid lands

The Effect of Plant Biodiversity Changes on the Chemical Composition of Steppe Soils during Climate Aridization

Результаты Мониторинга Растительности Горно-Луговых Степей, Степных И Лесных Районов Монголии

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