Robinia pseudoacacia L. in the Western Caucasus

2016 ◽  
Vol 7 (2) ◽  
pp. 105-118 ◽  
Author(s):  
V. V. Akatov ◽  
T. V. Akatova ◽  
A. E. Shadzhe
Keyword(s):  
Robinia Pseudoacacia ◽  
Western Caucasus ◽  
The Western Caucasus ◽  
Robinia Pseudoacacia L

IgE-vermittelte Allergie gegen Robinienholz (Robinia pseudoacacia L.) – eine Fallbeschreibung

Pneumologie ◽  
2004 ◽  
Vol 58 (11) ◽  
Author(s):  
S Kespohl ◽  
R Merget ◽  
M Gellert ◽  
T Brüning ◽  
M Raulf-Heimsoth
Keyword(s):  
Robinia Pseudoacacia ◽  
Robinia Pseudoacacia L

Productivity and Environmental Role of Forest Shelterbelts of Robinia pseudoacacia L. of the Kuban Lowland

2020 ◽  
pp. 88-97
Author(s):  
V.V. Tanyukevich ◽  
◽  
S.V. Tyurin ◽  
D.V. Khmeleva ◽  
A.A. Kvasha ◽  
...  
Keyword(s):  
Agricultural Land ◽  
Land Reclamation ◽  
Poa Pratensis ◽  
Robinia Pseudoacacia ◽  
Average Height ◽  
Middle Aged ◽  
Aboveground Phytomass ◽  
Robinia Pseudoacacia L ◽  
Young Growth

Works on protective afforestation are carried out in order to protect agricultural land from degradation processes, as well as to improve the microclimate of land. The research purpose is to study the bioproductivity and environmental role of Robinia pseudoacacia L. forest shelterbelts in the conditions of the Kuban lowland. The approved and generally accepted methods of forest valuation, forest land reclamation, botany, and mathematical statistics were applied. Plantings were created according to the standard technology for the steppe zone of the Russian Federation. The area of forest shelterbelts is 62.4 ths ha, including 5 % of the young growth (I state class), 80 % of middle-aged forest plantings (II state class), 10 % of maturing plantings (II state class), 5 % of mature and overmature plantings (III state class). Living ground cover is formed by the following species: Koeleria pyramidata L., Poa pratensis L., Festuca pratensis H., Elytrígia repens L., Dactylis glomerata L., and Phlum pratense L. Aboveground phytomass is 100–300 g/m2; height is 25–32 cm. Plantings are characterized by the quality classes: young growth – I and II; middle-aged and maturing – III; mature and overmature – IV. At the age of natural maturity (70 years), the Robinia trunk reaches the average height of 15.1 m with the average diameter of 22.1 cm. The total stock of wood reaches 18, (ths m3), including (ths m3): young growth – 68 (ths m3); middleaged plantings – 14,871 (ths m3); maturing plantings – 2,187 (ths m3); mature and overmature plantings – 1,314 (ths m3). Aboveground phytomass in young growth is 20.2 t/ha; in mature and overmature plantings it is 391.2 t/ha. In the region it is estimated at 17,070 ths t, including (ths t): young growth – 64; middle-aged plantings – 13,753; maturing plantings – 2,032; mature and overmature plantings – 1,221. The share of stem mass reaches 84.5–80.8 %; woody greenery – 4.2–1.5 %; branches – 11.3–17.7 %. Recalculation coefficients of the stock into aboveground phytomass are the following for: young growth – 0.936; mature and overmature forest shelterbelts – 0.929. Phytosaturation of forest shelterbelts varies within 0.314–2.474 kg/m3. Forest shelterbelts have accumulated 8,534 ths t of carbon, which is estimated at 145.1 mln dollars. The sphere of application of the research results is the Krasnodar Krai forestry, which is recommended to create an additional 60 ths ha of forest shelterbelts, which will provide a normative protective forest cover of arable land of 5 % and annual carbon sequestration up to 3.4 t/ha.

scholarly journals Rock-Solubilizing Microbial Inoculums Have Enormous Potential as Ecological Remediation Agents to Promote Plant Growth

Forests ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 357
Author(s):  
Zhaohui Jia ◽  
Miaojing Meng ◽  
Chong Li ◽  
Bo Zhang ◽  
Lu Zhai ◽  
...  
Keyword(s):  
Plant Growth ◽  
Leaf Area ◽  
Ecological Restoration ◽  
Root Nodules ◽  
Robinia Pseudoacacia ◽  
Growth Index ◽  
Nodule Formation ◽  
Bare Rock ◽  
Mining Sites ◽  
Robinia Pseudoacacia L

Anthropogenic overexploitation poses significant threats to the ecosystems that surround mining sites, which also have tremendous negative impacts on human health and society safety. The technological capacity of the ecological restoration of mine sites is imminent, however, it remains a challenge to sustain the green restorative effects of ecological reconstruction. As a promising and environmentally friendly method, the use of microbial technologies to improve existing ecological restoration strategies have shown to be effective. Nonetheless, research into the mechanisms and influences of rock-solubilizing microbial inoculums on plant growth is negligible and the lack of this knowledge inhibits the broader application of this technology. We compared the effects of rock-solubilizing microbial inoculums on two plant species. The results revealed that rock-solubilizing microbial inoculums significantly increased the number of nodules and the total nodule volume of Robinia pseudoacacia L. but not of Lespedeza bicolor Turcz. The reason of the opposite reactions is possibly because the growth of R. pseudoacacia was significantly correlated with nodule formation, whereas L. bicolor’s growth index was more closely related to soil characteristics and if soil nitrogen content was sufficient to support its growth. Further, we found that soil sucrase activity contributed the most to the height of R. pseudoacacia, and the total volume of root nodules contributed most to its ground diameter and leaf area. Differently, we found a high contribution of total soil carbon to seedling height and ground diameter of L. bicolor, and the soil phosphatase activity contributed the most to the L. bicolor’ s leaf area. Our work suggests that the addition of rock-solubilizing microbial inoculums can enhance the supply capacity of soil nutrients and the ability of plants to take up nutrients for the promotion of plant growth. Altogether, our study provides technical support for the practical application of rock-solubilizing microbes on bare rock in the future.

On the History of the Anglo-Russian Confrontation in the Western Caucasus

2021 ◽  
pp. 66-72
Author(s):  
Zalina V. Sosranova ◽  
Zalina M. Basieva
Keyword(s):  
Black Sea ◽  
Political Activity ◽  
Legal Rights ◽  
The Black Sea ◽  
Western Caucasus ◽  
The Caucasus ◽  
European Continent ◽  
North West ◽  
The Western Caucasus ◽  
Xix Century

The article examines the scale and methods of the anti-Russian military-political activity of British emissaries in the Western Caucasus in the first half of the 19th century. The scientific novelty lies in the fact that for the first time in the work the intelligence activity of British “traveling” agents in the Western Caucasus is subjected to a special study, as an independent, gaining strength way of fighting in international contradictions for the Caucasus. The relevance of the topic of the proposed article seems to us indisputable due to the incompleteness of international rivalry and the eternal Eastern question. Russian Empire in the late 20s — early 30s XIX century. took possession of all legal rights to the North-West Caucasus and outlets to the Black Sea. With its confident military successes and new territorial accessions, Russia threw a serious challenge to the European powers, and especially England, the dominant power on the European continent at that time. One of the most important tasks of England is to nullify all the achievements of Russia in Turkey and prevent its consolidation in the territory of the Western Caucasus. England, adhering to the favorite method of “raking in the heat with someone else’s hands”, and in Circassia is testing its effectiveness. Since the 30s. XIX century. Numerous British agents flooded the Caucasus, turning the Circassians against Russia. The Black Sea coast of the Caucasus has become a place of uninterrupted supply of weapons to the mountaineers. As a result of the work, the author comes to the conclusion that the sources considered in the work can represent a scientific basis for confirming the involvement of Britain in anti-Russian agitation in the Western Caucasus. The uninterrupted supply of weapons to the highlanders organized by British agents helped to maintain military tension and a fighting spirit in Circassia.

The Para-O-Methylation of Apigenin to Acacetin by Cell-Free Extracts of Robinia pseudoacacia L.

1981 ◽  
Vol 36 (11-12) ◽  
pp. 916-920 ◽  
Author(s):  
Gary Kuroki ◽  
Jonathan E. Poulton
Keyword(s):  
Reaction Rate ◽  
Callus Tissue ◽  
Robinia Pseudoacacia ◽  
Methylation Pattern ◽  
Maximum Activity ◽  
Significant Activity ◽  
Coumaric Acid ◽  
Methyltransferase Activity ◽  
Robinia Pseudoacacia L ◽  
Homogenization Medium

Abstract Crude extracts from young Robinia pseudoacacia seedlings, shoots, and callus tissue catalyze the para-O-methylation of apigenin to acacetin using S-adenosyl-ʟ-methionine as methyl donor. Optimum activity was exhibited at pH 9.0, and Mg2+ was not required for maximum activity. EDTA (10 mᴍ) did not affect the reaction rate, but 47% inhibition was observed with SAH (100 μᴍ). β-Mercaptoethanol (5 mᴍ) was required in the homogenization medium for optimum O-methyltransferase activity. Apigenin (Km, 50 μᴍ) was the best substrate, but significant activity was shown towards caffeic acid, 5-hydroxyferulic acid, naringenin, and quercetin. Paracoumaric, ferulic, and sinapic acids were not methylated. The Km for S-adenosyl-ʟ-methionine was 31 μᴍ. Our demonstration of a para-O-methyltransferase activity methylating apigenin, but not para-coumaric acid, strongly supports the conclusion that the B-ring methylation pattern of acacetin is determined at the C15-level in Robinia pseudoacacia.

scholarly journals ЛАНДШАФТНО-ГЕОГРАФИЧЕСКИЙ ПОДХОД К ОЦЕНКЕ СОСТОЯНИЯ НАСАЖДЕНИЙ В БАЛКЕ «ОТРАДНОЙ»

2021 ◽  
Vol 13 (1) ◽  
pp. 174-194
Author(s):  
Dmitry K. Suchkov ◽  
Olga V. Ruleva
Keyword(s):  
Pinus Sylvestris ◽  
Robinia Pseudoacacia ◽  
Robinia Pseudoacacia L

Волгоград относится к промышленным городам, где роль зеленых насаждений особенно важна для сохранения экологической ситуации и снижения пресса на экосистему города. Целью исследования являлась оценка лесокультурных ландшафтов урбанизированных территорий с применением ландшафтно-географического подхода на основе картографирования по дистанционным данным. Материалы и методы. Использовались цифровые крупномасштабные космоснимки Quick Bird  (М 1:4000 - 1:17000) с разрешением 0,6 м, топографические карты на город Волгоград (М 1:100000) и др. справочные материалы. Основным методом исследований послужило ландшафтно-экологическое профилирование ключевых участков. Закладка таксационных пробных площадей в насаждениях проводилась на основании общепринятых методик по лесной таксации и агролесомелиоративному устройству. Результаты исследования описывают данные экспликации земель на 2 ключевых участках, расположенных в Кировском районе Волгограда и основные морфологические признаки древостоя: № 1 в 200-250м к югу от поселка Горная Поляна. Общая площадь участка - 412,6 га. облесенность территории ключевого участка составляет 74,9%. Ключевой участок № 2 расположен к югу от балки Отрадная, на межбалочном водоразделе балок Отрадная и Капустная. Общая площадь участка составляет 304,1 га. облесенность ключевого участка № 2 составляет 54,3%. Заключение. Практически весь плакор на ключевом участке № 1 занят массивом из сосны обыкновенной (Pinus sylvestris L.) и робинии псевдоакации (Robinia pseudoacacia L.), именно им обусловлен высокий показатель лесистости плакорного яруса. Высокая лесистость гидрографической сети (84 %) обусловлена естественным древесным массивом, сохранившимся в балке Отрадной. На ключевом участке № 2 показатели лесистости во всех ландшафтных полосах не превышают 70%.

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