scholarly journals On the state of the ground cover of shaded areas in urban landscaping objects

Author(s):  
L A Grechushkina-Sukhorukova
Keyword(s):  
2021 ◽  
Author(s):  
E. Zamiusskaya ◽  
V. Koza ◽  
I. Tolbina

This article presents information about the state of the herbaceous vegetation of the Rossoshansky district of the Voronezh Region. The studies were conducted on 2 trial sites. For this purpose, the eye — measuring method of ground cover accounting was used- accounting for the abundance of individual representatives of the ground cover on the Drude scale and on the Zh. Brown-Blanquet scale. Thanks to this, it was possible to identify plant species that predominate in this area, and species that occur only in a single instance.


2021 ◽  
Vol 10 (4) ◽  
pp. 142-149
Author(s):  
Olga Gavrilova ◽  
Egor Kolganov ◽  
Karina Pak

It is reported about the state of natural regeneration of pine in a burnt-out area in a lingonberry pine forest. After the fire, rocky outcrops were exposed on the hills. Organic layer was completely burned out with spots and it has not recovered in 10 years. Pine undergrowth appeared in the first or second years after the fire. The number of self-seeding pine reaches 4-6 thousand/ha. The maximum number of pines is observed on rocky heights, where other forest-forming species are represented by single trees. Birch dominates in the relief depressions. The undergrowth is represented by mountain ash, willow, and wild rose. Heather, lingonberry, thin-bladed grass, reed grass, green mosses and lichens grow in the composition of the living ground cover


Author(s):  
А.Е. МОРОЗОВ ◽  
С.В. ХОЛКИН ◽  
Е.А. СТРОГАНОВ

Приведены результаты оценки эффективности лесной рекультивации земель, нарушенных при добы- че торфа на Басьяновском торфяном месторождении. Целью исследований явилось выявление наиболее эффективных вариантов лесной рекультивации на основе оценки состояния лесных культур, созданных на отработанных торфяниках после их технической рекультивации и мелиоративной подготовки. В основу исследований положен метод пробных площадей. В результате исследований установлено, что эффектив- ность рекультивации определяется водным режимом осушенных территорий, который зависит от расстоя- ния между осушительными каналами, их состояния. На большинстве обследованных участков состояние лесных культур оценивается как хорошее. Основные причины гибели лесных культур – это угнетение их мягколиственными породами, поврежде- ние культур сосны дикими животными (лосями) и вымокание. Причиной угнетения культур мягколиствен- ными породами явилось отсутствие своевременного проведения мероприятий по уходу за молодняками (прочисток). При этом угнетению более подвержены культуры сосны. Лесные культуры ели оказались в целом более эффективными по сравнению с культурами сосны. При посадке культуры ели целесообразно высаживать под полог мягколиственных пород. На рекультивированных участках с нормальным водным режимом наблюдается формирование живого напочвенного покрова, типичного по составу для мелкотравно-зеленомошных и разнотравно-зеленомош- ных типов леса. Полученные результаты имеют практическое значение и могут быть использованы недропользователя- ми, органами исполнительной власти в области лесных отношений, проектно-изыскательскими организа- циями при проектировании, организации и проведении работ по лесной рекультивации на отработанных торфяных месторождениях. The article contains the results of assessing the effectiveness of forest reclamation of lands disturbed during peat extraction at the Basyanovskiy peat deposit. The aim of the research was to identify the most effi cient options for forest reclamation based on an assessment of the state of forest crops created on spent peatlands after their technical reclamation and reclamation preparation. The research is based on the trial plot method. As a result of the research, it was found that the effi ciency of reclamation is determined by the water regime of the drained territories, which depends on the distance between the drainage canals, their condition. In most of the surveyed areas, the state of forest cultures is assessed as well. The main reasons for the death of forest crops are their oppression by soft-leaved species, damage to pine crops by wild animals (elks) and soaking. The reason for the oppression of crops by soft-leaved breeds was the lack of timely measures for the care of young stands (cleanings). At the same time, pine crops are more subject to oppression. Spruce forest crops were generally more effective than pine crops. When planting spruce crops, it is advisable to plant under the canopy of soft-leaved species. In the reclaimed areas with a normal water regime, the formation of a living ground cover is observed, typical in composition for small-grass-green moss and forb-green moss types of forest.The results obtained are of practical importance and can be used by subsoil users, executive authorities in the fi eld of forest relations, design and survey organizations in the design, organization and implementation of forest reclamation work at spent peat deposits.


2020 ◽  
Vol 175 ◽  
pp. 12023
Author(s):  
Svetlana Vershinina ◽  
Lyudmila Gabyshcheva ◽  
Nikolay Tyutrin ◽  
Vasily Verkhoturov ◽  
Andrey Lagunov

This paper discusses the chronology and cause of forest fires on the territory of the State Reserve “Olekminsky”. Forest fires on the territory of the reserve are low-level, caused by dry thunderstorms. The overgrowth of burnt areas occurs at the expense of specific groups of pyrophyte plants. For 2-3 years after the fires, Camenerion angustifolium (L.) Scop., Corydalis sibirica (L.) Pers., Plantago canescens Adams, Crepis tectorum L. and others were found. In waterlogged areas, Tephroseris palustris (L.) Reichenb appear and subsequently do not occur, and mosses: Marshantia polymorpha L., Ceratodon purpureum (Hedw.) Brid. It was found that the restoration of ground cover is mainly due to species characteristic only for intermediate stages: Lichens - Baeomyces carneus, Dibaeis baeomyces and Trapeliopsis granulosa, as well as Arctous erythrocarpa (Small) M. Ivanova, Chamaenerion angustifolium (L.) Scop., Calamagrostis obtusata Trin, Сarex spp., cereals and green mosses. More than 40 species of lichens participate in the formation of the ground cover of the studied larch forests, mainly bushy species of Cladonia, Stereocaulon, Peltigera. Forest fires of a natural nature occurring on the territory of the reserve are the main limiting factor affecting bio-resources and theirrestoration.


Author(s):  
T. A. Welton

Various authors have emphasized the spatial information resident in an electron micrograph taken with adequately coherent radiation. In view of the completion of at least one such instrument, this opportunity is taken to summarize the state of the art of processing such micrographs. We use the usual symbols for the aberration coefficients, and supplement these with £ and 6 for the transverse coherence length and the fractional energy spread respectively. He also assume a weak, biologically interesting sample, with principal interest lying in the molecular skeleton remaining after obvious hydrogen loss and other radiation damage has occurred.


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