scholarly journals Ecological significance of hellebore growth (Epipactis helleborine) in artificial tree plantations of the Eastern Forest-Steppe forest reclamation area

2020 ◽  
Vol 0 (3) ◽  
pp. 58-62
Author(s):  
Ігор Ярославович Тимочко ◽  
Володимир Андрійович Соломаха
Keyword(s):  
Tree Plantations ◽  
Forest Steppe ◽  
Ecological Significance ◽  
Forest Reclamation ◽  
Reclamation Area ◽  
Epipactis Helleborine

Hydrological and gas regime of swamps in the conditions of forest reclamation

2021 ◽  
Vol 0 (6) ◽  
pp. 39-44
Author(s):  
Lidiya Inisheva ◽  
Leh Shaydak ◽  
Boris Babikov
Keyword(s):  
Western Siberia ◽  
Drainage System ◽  
Southern Taiga ◽  
The State ◽  
Natural State ◽  
Forest Steppe ◽  
Peat Deposits ◽  
Forest Reclamation

The effective of forest reclamation in oligotrophic and eutrophic swamps in the southern taiga and forest-steppe zones of Western Siberia are described. The state of the hydrological and gas regime of peat deposits is analyzed. It is concluded that forest reclamation 60 years ago on oligotrophic and eutrophic swamps has little effect on the hydrological and gas regime of the reclaimed territory at this moment. These regimes are approaching to their natural state, which indicates that the area is re-waterlogged in the absence of operation of the drainage system.

scholarly journals Populations of Cephalanthera damasonium (Mill.) Druce on the hills of the right bank of the River Dnieper (in Forest Steepe vegetation of Ukraine)

2020 ◽  
Vol 8 (2) ◽  
pp. 12-20
Author(s):  
lgor V. Solomakha ◽  
Vasyl L. Shevchyk ◽  
Iryna A. Tymchenko ◽  
Volodymyr A. Solomakha ◽  
Tetyana S. Dvirna
Keyword(s):  
Total Population ◽  
Natural Populations ◽  
Tree Plantations ◽  
Forest Steppe ◽  
Habitat Conditions ◽  
Eastern Border ◽  
The Right ◽  
Number Of Individuals ◽  
Cephalanthera Damasonium ◽  
Study Species

AbstractAs a result of studying the vegetation cover of artificial (possibly spontaneous) tree plantations on the hills of the right bank of the River Dnieper in the Forest-Steppe of Ukraine we discovered the formation of natural populations of Cephalanthera damasonium (Mill.) Druce. Information on the growth of this species was previously presented (more than 80 years ago) by F. Gryn (samples of which are in The National Herbarium of Ukraine, Kiev), who noted its distribution in these locations. The ecological and coenotic features of the distribution of this species as a part of available populations in the communities of classes Carpino-Fagetea sylvaticae, Quercetea pubescentis, Crataego-Prunetea, Alno glutinosae-Populetea albae have been studied. The largest eight new populations of C. damasonium have been identified on the eastern border of Ukraine. Habitat conditions, number and structure of all new populations were determined. Micropopulations of the species occupy an area from several to 750 m2 with a total population of more than 1,200 specimens. The ontogenetic spectrum is right-sided, with a dominance of generative individuals, and their share is 4/5 of the total number of individuals. The peculiarity of this locality is the high number of individuals in most of these populations, which may be due to favourable ecological-coenotic conditions and the absence of intensive anthropogenic influences. The identified habitats of the study species need protection.

scholarly journals Ecological and typological assessment of forest vegetation of the Middle Dnieper (Forest-steppe of Ukraine)

2021 ◽  
Author(s):  
I. Solomakha ◽  
O. Chornobrov
Keyword(s):  
Robinia Pseudoacacia ◽  
Essential Element ◽  
Alnus Glutinosa ◽  
Pine Forest ◽  
Forest Vegetation ◽  
Tree Plantations ◽  
Forest Steppe ◽  
Oak Wood ◽  
Small Areas ◽  
Dry Conditions

The paper shows the importance of a detailed study of various aspects of modern phytodiversity as an essential element of preservation of natural ecotypes for building national ecological network in the system of pan-European network. To do this, it is necessary to explore various aspects of natural and spontaneously formed vegetation. Based on the ecological specifics of the Middle Dnieper (Forest-Steppe of Ukraine), a detailed analysis of natural and artificially formed forests on the Dnipro cliffs, in ravine-beam systems and on the Dnipro floodplain is required. Peculiarities of forest vegetation conditions, distribution of tree species and ecological conditions of their growth are given. According to forest management data, the area covered with forest vegetation is 251341.3 hectares. The distribution of forest areas by edatopes is as follows: trophotopes — subors (78083.2 hectares, 31.07%), sugruds (77232.6 hectares, 30.73%), oak wood (72520.6 hectares, 28.85%) and pine forests (23504.9 hectares, 9.35%); hygrotopes — fresh conditions (183792.4 hectares, 73.13%), dry (34938.5 hectares, 13.90%), damp (19038.7 hectares, 7.57%), moist (11401.1 hectares, 4.54%), wet (1896.0 hectares, 0.75%) and very dry conditions (274.6 hectares, 0.11%). There are 62 types of forests areas covered with forest vegetation, which are dominated by fresh oak-pine forest (68319.9 hectares, 27.18%) and hornbeam oak wood (32871.8 hectares, 13.08%), a slightly smaller area occupied by fresh pine forest (17568.3 hectares, 6.99%), hornbeam-oak-pine sugrud (16952.2 hectares, 6.74%), maple-linden forest (15144.4 hectares, 6.03%) hornbeam-pine (13775.4 hectares, 5.48%) and hornbeam (9334.3 hectares, 3.71%) sudibrovas and dry maple-linden forest (12810.9 hectares, 5.10%). The composition of forest-forming species is quite diverse and is represented by 71 species of woody and shrubby plants. The main forest-forming species are Pinus sylvestris (116592.9 hectares, 46.39%) and Quercus robur (60049.7 hectares, 23.89%). Robinia pseudoacacia (26406.0 hectares, 10.51%), Alnus glutinosa (11391.7 hectares, 4.53%) and Fraxinus excelsior (7835.5 hectares, 3.12%) have slightly smaller areas, all other species occupy small areas. Identifying all the diversity of forest habitats will provide an opportunity to plan the conservation, reproduction and protection of phytodiversity, including species of sozophytes from different conservation lists, as well as to balance the provision of ecosystem services by tree plantations of the Middle Dnieper.

Soil Nutrient Analysis of Different Utilization Types in Coal Mining Subsidence Area

2015 ◽  
Vol 768 ◽  
pp. 752-757
Author(s):  
Xiu Jie Zhou ◽  
Hong Bo Zhao ◽  
Fei Liu ◽  
Qiang Zhang ◽  
Liang Zuo Shu
Keyword(s):  
Organic Matter ◽  
Coal Mining ◽  
Ph Value ◽  
Soil Nutrient ◽  
Mining Subsidence ◽  
Nutrient Analysis ◽  
Subsidence Area ◽  
Forest Reclamation ◽  
Reclamation Area ◽  
Coal Mining Subsidence

Soil nutrient of different utilization types in coal mining subsidence area had been analyzed. Results showed that: In greenhouse reclamation area, the content of organic matter and elements was higher, the pH-value was slightly high, followed by was cropland reclamation area; but in forest reclamation area (Include new reclamation area and intercropping reclamation area), as the reclamation and cropping were prolonged, soil fertility was improved.

scholarly journals COMPOSIÇÃO DO BANCO DE SEMENTES NO SOLO EM ÁREAS DE PRESERVAÇÃO PERMANENTE SOB DIFERENTES TIPOS DE COBERTURA

FLORESTA ◽  
2013 ◽  
Vol 43 (1) ◽  
pp. 49 ◽  
Author(s):  
Lauri Amandio Schorn ◽  
Tatiele Anete Bergamo Fenilli ◽  
Andres Krieger ◽  
Gabriel Corso Pellens ◽  
Juliana Jaqueline Budag ◽  
...  
Keyword(s):  
Seed Bank ◽  
Soil Seed Bank ◽  
Mixed Forest ◽  
Soil Samples ◽  
Native Forest ◽  
Plant Groups ◽  
Different Types ◽  
Forest Reclamation ◽  
Reclamation Area ◽  
Germinated Seeds

 Este estudo teve como objetivo avaliar a composição e similaridade do banco de sementes no solo em três áreas com diferentes históricos de cobertura do solo: I - floresta nativa remanescente; II - extração recente de Pinus; III - reflorestamento de Pinus. Foram coletadas 10 amostras de solo aleatoriamente, para cada uma das três áreas. As amostras de solo foram colocadas em bandejas de 60 x 40 x 10 cm e dispostas em canteiros a céu aberto no laboratório de silvicultura da FURB, em Blumenau, SC, para análise da germinação, entre junho de 2008 e maio de 2009. As plântulas germinadas foram classificadas em grupos: arbóreas, arbustivas, cipós, herbáceas, gramíneas, pteridófitas e arbóreas exóticas. Foram identificados 2223 indivíduos, pertencentes a 37 espécies e 22 famílias. As espécies com maior quantidade de sementes germinadas nos três ambientes foram Eupatorium compressum e Braquiaria subquadripara. A densidade de indivíduos/m2 foi de 2.846 (ambiente I), 4.292 (ambiente II) e 2.125 (ambiente III). O número de espécies, diversidade e equabilidade foram decrescentes do ambiente I para o ambiente III. Concluiu-se que o tipo de uso e cobertura da área tem relação com a densidade dos grupos de plantas presentes no banco de sementes no solo.Palavras-chave: Regeneração; Floresta Ombrófila Mista; recuperação de área.AbstractComposition of soil seed bank in areas of permanent preservation under different types of coverage. The aim of this study was to evaluate the composition of soil seed bank in three types of use of permanent preservation area: I - remaining native Forest; II - recent extraction of Pinus; III - reforestation of Pinus. 10 soil samples were collected in randomly points distributed in each one of the three areas. The soil samples were individually placed in plastic trays with 60 x 40 x 10cm and arranged in open plots in the Silviculture Laboratory of FURB in Blumenau - SC, for analysis of germination, from June 2008 to May 2009. The seedlings were classified into groups: trees, shrubs, vines, herbs, grasses, ferns and pine. 2223 individuals were identified; they belonged to 37 species and 22 families. The species with the largest number of germinated seeds within the three environments were Eupatorium compressum and Braquiaria subquadripara. The density was 2846 indivíduals.m2 (environment I), 4292 (environment II) and 2125 (environment III). The number of species and diversity values decreased from environment with native remaining forest to the environment area with Pinus. Results point to the fact that the type of use and coverage of the area is related to density of plant groups present in the soil seed bank. Keywords: Regeneration; Mixed Forest; reclamation area.  

EFFICIENCY OF THE FOREST RECLAMATION IN EROSION HAZARD AGROLANPSCAPES

1970 ◽  
pp. 65-68
Author(s):  
А. S. Manayenkov ◽  
Е. А. Korneeva
Keyword(s):  
Service Life ◽  
Economic Efficiency ◽  
Arable Land ◽  
Russian Plain ◽  
Annual Rainfall ◽  
Forest Steppe ◽  
Reclaimed Land ◽  
Forest Reclamation ◽  
Forest Belts ◽  
Bio Engineering

The economic analysis of the agro-economic efficiency of forest reclamation, based on the calculation of the cost of soil fertility and crop losses in the eroded arable land of the Russian Plain, prevented by runoff-regulating forest belts, shows that it depends on three main factors: site inclination and the degree of washout of the soil cover; natural and climatic conditions; bio-engineering features of afforestation. The control of forest strips of soil erosion in the agrolandscape occurs with optimal inter-band spaces, which decrease with increasing steepness of the slope and increase (in the zonal direction) as the annual rainfall norm and the volume of erosion-dangerous runoff decrease, and when forest-forming breeds adapt to washed-out soils. The most significant anti-erosion effect in annual terms in all natural areas is achieved with forest-meliorative development of slopes with a steepness of more than 5 degrees with strongly washed soils. Its value is about 60–200 thousand rubles per 1 hectare of reclaimed land. At the same time, the agro-meliorative effect is 6–7 thousand rubles / ha per year. Aggregate agro-economic efficiency for the entire service life of forest belts under the accepted conditions is equal to 0.5–8.0 million rubles (in prices of 2017). In the zonal section, the effectiveness of the anti-erosion forest melioration decreases from the forest-steppe to the dry steppe. Forest belts of fast-growing early ripening species exceed the forest belts from durable breeds by 9–33% by average annual efficiency. However, in the calculation for the entire service life of the stand, they are inferior to them by 14–26%.

scholarly journals FEATURES OF FORMATION OF PROTECTIVE PLANTINGS FROM A BIRCH HANGING IN THE CENTRAL FOREST-STEPPE OF RUSSIA

2020 ◽  
Vol 9 (4) ◽  
pp. 41-49
Author(s):  
Vyacheslav Mikhin ◽  
Elena Mikhina
Keyword(s):  
Plant Density ◽  
Arable Land ◽  
Soil Conditions ◽  
Forest Steppe ◽  
Natural Phenomena ◽  
Optimal Conditions ◽  
European Part Of Russia ◽  
Forest Reclamation ◽  
Protective Forest ◽  
Growth Indicators

Negative natural phenomena, erosive processes in agroforestry of the European part of Russia are stabilized using protective forest stands. When creating artificial linear plantations, it is necessary to take into account their silvicultural and reclamation properties. The most efficient are stands with the participation of fast-growing species. Using taxation methods, we studied the growth of tree species (drooping birch) in the age dynamics in various soil conditions and depending on forest cultural, agrotechnical methods of creation. More significant biometric growth indicators are observed in field-protecting forest strips 7.5-10.0 m wide with a plant density of 4-5 thousand trunks per 1 ha, where a highly efficient blown structure is formed. In narrow protective stands with the participation of birch, the biometric growth indicators (diameter, height) have a higher value (1.4-1.6 times) compared with forest reclamation objects, where the width exceeds 50 % or more in the compared variants. Pure horticultural forest strips are most effective when placing seats 4.0 × 4.0 m. In artificial middle-aged stands, growth rates are 12.0-26.8 % higher on chernozem typical in comparison with other soil conditions. The intervals of ameliorative influence on the landscape of protective planting systems were determined. To optimize agro-territories in the forest-steppe conditions, shelterbelts should occupy an area of at least 3.13 % from arable land. Protective planting systems, where optimal conditions for the growth of rocks are combined, and the placement parameters in the landscape make it possible to have biologically stable ecosystems with a high reclamation effect.

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