Plant communities of the Bol'šoj Čivyrkuj River Valley, Barguzinskij Range, East Siberia

1995 ◽  
Vol 25 (3) ◽  
pp. 399-434 ◽  
Author(s):  
Milan Chytrý ◽  
Oleg A. Anenchonov ◽  
Jiří Danihelka
Keyword(s):  
Plant Communities ◽  
River Valley ◽  
East Siberia

Large-scale vegetation mapping of the Pinega river valley (the surroundings of Golubino village, Arkhangelsk oblast)

2018 ◽  
pp. 19-39
Author(s):  
M. A. Makarova
Keyword(s):  
Plant Communities ◽  
Indicator Species ◽  
Dominant Species ◽  
Large Scale ◽  
Vegetation Mapping ◽  
River Valley ◽  
Floodplain Forests ◽  
Floodplain Vegetation ◽  
Wet Meadows ◽  
Arkhangelsk Oblast

Geobotanical survey of floodplain natural complexes near gypsum outcrops in the Pinega river valley was done in 2015. Large-scale geobotanical map of the key polygon (scale 1 : 30 000) was composed. Typological units of vegetation were selected on the basis of the composition of dominant species and groups of indicator species. Homogeneous and heterogeneous territorial units of vegetation (serial series, combinations, environmental series) were used. 53 mapped unit types (25 homogeneous types and 28 heterogeneous types) were recognized. The floodplain vegetation consists of 17 homogeneous types of plant communities, 3 series, 14 combinations and 6 ecological series. The sites of old floodplain forests, such as willow forests with Urtica sondenii rare in the Arkhangelsk region and oxbow wet meadows with Scolochloa festucacea were identified.

scholarly journals Floristic diversity and use value of phytocoenoses in a section of the Wieprz river valley in Roztocze National Park for feeding the konik polski horse

2020 ◽  
Vol 74 (4) ◽  
pp. 123-134
Author(s):  
TERESA GRAŻYNA WYŁUPEK ◽  
HANNA KLIKOCKA ◽  
MARIUSZ KULIK ◽  
HALINA LIPIŃSKA ◽  
ADAM GAWRYLUK
Keyword(s):  
Plant Community ◽  
Plant Communities ◽  
National Park ◽  
Dry Weight ◽  
Wiener Index ◽  
River Valley ◽  
Use Value ◽  
Floristic Diversity ◽  
Feeding Preferences ◽  
Phytosociological Relevés

The paper describes the floristic diversity and specifies its use value in terms of feeding preferences of konik polski horses and their consumption of permanent grassland in a section of the Wieprz river valley in Roztocze National Park. The flora assessment was conducted by analyzing 79 phytosociological relevés using the Braun-Blanquet method. The results of phytosociological surveys made it possible to distinguish 7 complexes in the Phragmitetea class, 5 complexes and 1 plant community in the Molinio-Arrhenatheretea class, and 1 complex in the Nardo-Callunetea class. Natural values of the examined associations were described based on the total and average number of species in a phytosociological relevé, the Shannon-Wiener index, and the phytosociological structure of plant communities. The use value of dry weight of the analyzed meadows and pastures was estimated by means of the use value number (UVN) and taking into account the and yield size. The phytocoenoses identified in the meadows in the section of the Wieprz river valley under study exhibited high natural values (H’ = 3.20–4.62). The dry weight yields of the examined communities varied (from 1.32 to 5.37 t ha–1), but their sward usually had poor and very poor use value (UVN = from –0.55 to 5.8). Furthermore, it should be noted that the sward of wet meadows is readily consumed by the grazing animals, which contributes to the improvement of the natural and use value of meadows.

scholarly journals Characteristics of Serratula centauroides (Compositae) Coenopopulations in Transbaikalia (East Siberia)

2021 ◽  
Vol 36 ◽  
pp. 16-23
Author(s):  
V. M. Shishmarev ◽  
◽  
T. M. Shishmareva ◽  
Keyword(s):  
Plant Communities ◽  
Raw Materials ◽  
Raw Material ◽  
East Siberia ◽  
Biological Resources ◽  
The Republic ◽  
Growing Conditions ◽  
Made In

The coenopopulations of Serratula centauroides in various plant communities of Transbaikalia have been studied. In the study areas 10 geobotanical descriptions were made in plant communities with the participation of S. centauroides. In the investigated area S. centauroides is found on dry rocky slopes, in herb and sandy steppes. Depending on the growing conditions, the density of individuals in coenopopulations ranges from 0.18 to 1.80 individuals per 1 m2. The highest occurrence of S. centauroides is noted in communities dominated by Gramineous and Artemisia: Gramineous-Artemisia-herb, Filifolium-Artemisia-Gramineous, Gramineous-Artemisia, Oxytropis-Gramineous and Allium-Artemisia. Studied coenopopulations S. centauroides are confined to the following communities: Filifolium-herb, Gramineous- Artemisia-herb, Sophora-herb, Filifolium-Artemisia-Gramineous, Gramineous-Artemisia, Agropyron- Carex, Carex-herb, Oxytropis-Gramineous and Allium-Artemisia. The phytomass, biological and exploitation resources, the possible volumes of annual harvesting of raw material of S. centauroides were determined. The phytomass of S. centauroides herb ranges from 8.10±3.46 to 75.93±19.55 g/m2 (air-dry raw material). The average phytomass of 1 individual of S. centauroides herb varies from 13.67±3.59 to 67.14±14.30 g (air-dry raw materials). The total biological resources of S. centauroides herb is 777.9 t (fresh raw materials) and 266.8 tons (air-dry raw materials). The total exploitation resources of S. centauroides herb is 224.7 t (fresh raw materials) and 79.8 t (air-dry raw materials). The possible volume of annual harvesting of raw materials of S. centauroides in the studied coenopopulations on the territory of the Trans-Baikal Territory and the Republic of Buryatia amounts to 37.5 t (fresh raw materials) and 13.3 t (air-dry raw materials).

scholarly journals The Natural Environment of the Namib Desert

Afrika Focus ◽  
1992 ◽  
Vol 8 (3-4) ◽  
pp. 203-214
Author(s):  
Patrick van Damme ◽  
Patrick Vernemmen
Keyword(s):  
Plant Communities ◽  
Natural Environment ◽  
River Valley ◽  
Namib Desert

The Topnaar basically live in two distinct areas in the Namib Desert i.e. the Kuiseb river valley and the Sesfontein area. The ecology of both these zones is presented and discussed in detail. Specific attention is given to the plant communities that occur in both of them.

scholarly journals The Natural Environment of the Namib Desert

Afrika Focus ◽  
1992 ◽  
Vol 8 (3-4) ◽  
Author(s):  
Patrick Van Damme ◽  
Patrick Vernemmen
Keyword(s):  
Plant Communities ◽  
Natural Environment ◽  
River Valley ◽  
Namib Desert

The Topnaar basically live in two distinct areas in the Namib Desert i.e. the Kuiseb river valley and the Sesfontein area. The ecology of both these zones is presented and discussed in detail. Specific attention is given to the plant communities that occur in both of them. 

scholarly journals The lichens of the plant communities in the middle reaches of the Uty River Valley

2019 ◽  
Vol 16 ◽  
pp. 00027
Author(s):  
Alena Sagalakova ◽  
Olga Zyryanova ◽  
Mariya Larina
Keyword(s):  
Plant Communities ◽  
Life Form ◽  
River Valley ◽  
Number Of Species

The article presents the data on the species communities situated in the middle reaches of the Uty river valley (Beisky District, Republic of Khakassia). The taxonomic list of lichens is represented by 51 taxa of a species rank belonging to 24 genera and 11 families. The largest number of species is characterized by the crustose life form. Mesophytes and epiphytes are predominant in the terms of ecological substrate.

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