scholarly journals PLANT COMMUNITIES OF ENVIRONMENTAL CONTACT AS INDICATORS OF DIRECTION OF THE VEGETATION FORMATION (some theoretical aspects)

2021 ◽  
Vol 11 (4) ◽  
pp. 815-818
Author(s):  
Alexander Sizykh ◽  
◽  
Tatyana Konovalova
Keyword(s):  
Plant Communities ◽  
Vegetation Formation

scholarly journals Moneses uniflora (L.) A. Gray on industrial dumps of the Middle Urals

2021 ◽  
Vol 20 (1) ◽  
pp. 102-107
Author(s):  
M. A. Glazyrina ◽  
N. Yu. Barkova ◽  
N. V. Lukina ◽  
E. I. Filimonova
Keyword(s):  
Plant Communities ◽  
Southern Taiga ◽  
Middle Urals ◽  
Morphological Parameters ◽  
The Middle Urals ◽  
Arbutoid Mycorrhiza ◽  
Southern Taiga Subzone ◽  
Vegetation Formation

The article presents the results of studying the coenopopulations of Moneses uniflora (L.) A. Gray (familyEricaceae Juss.) found during the monitoring of vegetation formation on the dumps of the mining and processing industryof the Sverdlovsk region (Middle Urals, southern taiga subzone). Studies have shown that the M. uniflora (family EricaceaeJuss.) coenopopulations in plant communities formed on industrial dumps and in natural phytocenosis are normal, fullfledged, young. The morphological parameters of generative individuals are significantly influenced by coenotic andedaphic factors. Arbutoid mycorrhiza was found in the thin roots of M. uniflora in all the studied habitats.

scholarly journals Strip clay application accelerates for 15–20 years the vegetation formation in ash dump (Middle Urals, Russia)

2021 ◽  
Vol 31 ◽  
pp. 00016
Author(s):  
Natalia Lukina ◽  
Tamara Chibrik ◽  
Elena Filimonova ◽  
Margarita Glazyrina ◽  
Evgeniy Rakov ◽  
...  
Keyword(s):  
Plant Community ◽  
Plant Communities ◽  
Time Scale ◽  
Southern Taiga ◽  
Projective Cover ◽  
Middle Urals ◽  
Power Station ◽  
Absolute Time ◽  
Number Of Species ◽  
Vegetation Formation

As a result of a generalization of 45-year monitoring observations at on the ash dump of the Verkhniy Tagil Power Station, the absolute time scale was made, stabilization rates during succession of different plant communities characteristics were assessed in two areas: recultivated and non-recultivated. Recultivation consisted of clay strips applying (5–8 m wide, 10–15 cm thick) on ash surface. All characteristics of plant communities (total projective cover by plants, total number of species in plant community) are formed 15–20 years faster in recultivated area. So, a simple technical recultivation, (clay strips applying), significantly accelerates the formation of plant communities main characteristics on ash surface in subzone of the southern taiga in Middle Urals.

Weed plant communities of orchards in Siwa Oasis, Egypt

1994 ◽  
Vol 105 (5-6) ◽  
pp. 387-398
Author(s):  
M. M. Abd El-Ghani
Keyword(s):  
Plant Communities ◽  
Weed Plant

Temporal dynamics of mycorrhizal fungal communities and co-associations with grassland plant communities following experimental manipulation of rainfall

2019 ◽  
Author(s):  
Coline Deveautour ◽  
Sally Power ◽  
Kirk Barnett ◽  
Raul Ochoa-Hueso ◽  
Suzanne Donn ◽  
...  
Keyword(s):  
Community Composition ◽  
Plant Community ◽  
Plant Communities ◽  
Fungal Community ◽  
Mycorrhizal Fungi ◽  
Temporal Dynamics ◽  
Arbuscular Mycorrhizal ◽  
Fungal Communities ◽  
Plant Responses ◽  
Rainfall Regimes

Climate models project overall a reduction in rainfall amounts and shifts in the timing of rainfall events in mid-latitudes and sub-tropical dry regions, which threatens the productivity and diversity of grasslands. Arbuscular mycorrhizal fungi may help plants to cope with expected changes but may also be impacted by changing rainfall, either via the direct effects of low soil moisture on survival and function or indirectly via changes in the plant community. In an Australian mesic grassland (former pasture) system, we characterised plant and arbuscular mycorrhizal (AM) fungal communities every six months for nearly four years to two altered rainfall regimes: i) ambient, ii) rainfall reduced by 50% relative to ambient over the entire year and iii) total summer rainfall exclusion. Using Illumina sequencing, we assessed the response of AM fungal communities sampled from contrasting rainfall treatments and evaluated whether variation in AM fungal communities was associated with variation in plant community richness and composition. We found that rainfall reduction influenced the fungal communities, with the nature of the response depending on the type of manipulation, but that consistent results were only observed after more than two years of rainfall manipulation. We observed significant co-associations between plant and AM fungal communities on multiple dates. Predictive co-correspondence analyses indicated more support for the hypothesis that fungal community composition influenced plant community composition than vice versa. However, we found no evidence that altered rainfall regimes were leading to distinct co-associations between plants and AM fungi. Overall, our results provide evidence that grassland plant communities are intricately tied to variation in AM fungal communities. However, in this system, plant responses to climate change may not be directly related to impacts of altered rainfall regimes on AM fungal communities. Our study shows that AM fungal communities respond to changes in rainfall but that this effect was not immediate. The AM fungal community may influence the composition of the plant community. However, our results suggest that plant responses to altered rainfall regimes at our site may not be resulting via changes in the AM fungal communities.

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