BSU bulletin. Biology, geography
Bibliographic description:
CLEISTOGENES SQUARROSA STEPPE IN REPUBLIK OF BURYATIA // BSU bulletin. Biology, geography. - 2017. №3. . - С. 78-82.
Title:
CLEISTOGENES SQUARROSA STEPPE IN REPUBLIK OF BURYATIA
Financing:
Codes:
UDK: 582.3 (171.54)
Annotation:
The article discusses the features of composition and structure of Cleistogenes squarrosa (Trin.) Keng.) steppes within Buryatia. The communities occupy small areas on sandy and sandy loamy soils, often they are subjected to grazing on old fallow lands. Usually the communities Cleistogenes squarrosa steppes aresmall species of plants. Analysis of phytocoenotic and ecological characteristics of the communities showed that they belong to digressional variant of herb-bunchgrass true steppes. Coenoflora of formation is characterized by very low diversity (66 species of higher vascular plants). Forest-steppe and steppe elements are dominant. Tap root and long rhizome xeromesophytic plants dominate in the morphological structure. There are two associations: association Cleistogenes squarrosa – Poa botryoides — Veronica incana and the second association Cleistogenes squarrosa – Artemisia commutata — Potentilla bifurca.
Keywords:
steppe vegetation, Buryatia, Cleistogenes squarrosa, coenoflora, association.
List of references:
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Kholboeva S. A., Namzalov B. B. Stepi Tunkinskoi kotloviny[Steppes of Tunkinskaya Depression]. Ulan-Ude: Buryat. gos. univ., 2000. 119 p.
Cacenkin I. A., Dmitrieva S. I., Beljaeva N. V., Savchenko I. V. Metodicheskie ukazani- ja po jekologicheskoj ocenke kormovyh ugodij lesostepnoj i stepnoj zon Sibiri po rastitel'nomu pokrovu [Methodical Recommendations on the Ecological Assessment of Grasslands of the Forest-Steppe and Steppe Zones of Siberia by the Plant Cover]. M., 1974. 247 p.
Koroljuk A.Yu. Ekologicheskie optimumy rastenij juga Sibiri [Ecological optima for plants of southern Siberia] // Botanicheskie issledovanija Sibiri i Kazahstana. Sbornik nauchn. tr. Barnaul, Kemerovo: Irbis, 2006. Vyp 2. P. 3-29.
Koroljuk A.Yu., Namzalov B. B., Dulepova N. A., Sandanov D. V. Fitocenoticheskoe raznoobrazie i prostranstvennaja struktura rastitel'nogo pokrova landshafta sosnovoj lesostepi (bassejn r. Dzhida, Respublika Burjatija) [Phytocoenotic diversity and spatial structure of pine forest-steppe landscapes (Dzhida river basin, Republic of Buryatia)]. Vestnik Tomskogo gosu- darstvennogo universiteta. Biologija. 2013. № 1 (21). P. 44–58.
Lavrenko E. M., Karamysheva Z. V., Nikulina R. I., Stepi Evrazii[Eurasian Steppes]. Leningrad: Nauka, 1991.146 p.
Namzalov B. B. Stepi Yuzhnoi Sibiri[Steppes of Southern Siberia]. Ulan-Ude: Buryat. Nauch. Tsentr Sib. Otd. Ross. Akad. Nauk, 1994. 307 p.
Peshkova G. A. Stepnaja flora Bajkal'skoj Sibiri [Steppe flora of Baikalian Siberia]. M.: Nauka, 1972. 207 p.
Reshhikov M. A. Stepi Zapadnogo Zabajkal'ja [Steppe of West Transbaikalia]. M.: Izd- vo AN SSSR, 1961. 176 p.
Kholboeva S. A., Namzalov B. B. Stepi Tunkinskoi kotloviny[Steppes of Tunkinskaya Depression]. Ulan-Ude: Buryat. gos. univ., 2000. 119 p.
Cacenkin I. A., Dmitrieva S. I., Beljaeva N. V., Savchenko I. V. Metodicheskie ukazani- ja po jekologicheskoj ocenke kormovyh ugodij lesostepnoj i stepnoj zon Sibiri po rastitel'nomu pokrovu [Methodical Recommendations on the Ecological Assessment of Grasslands of the Forest-Steppe and Steppe Zones of Siberia by the Plant Cover]. M., 1974. 247 p.
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