scholarly journals Nature-oriented potential resource and melliferous value of forest belts in steppe agro-forest landscapes

2018 ◽  
Vol 60 (2) ◽  
pp. 99-107 ◽  
Author(s):  
Irina Samsonova ◽  
Anatoly Gryazkin ◽  
Natalia Belyaeva ◽  
Vladimir Belyaev ◽  
Vitaliy Petrik ◽  
...  
Keyword(s):  
Carbon Fixation ◽  
Black Locust ◽  
Robinia Pseudoacacia ◽  
Mixed Forest ◽  
Steppe Zone ◽  
Oxygen Production ◽  
Local Conditions ◽  
Climatic Regions ◽  
Forest Belts ◽  
Potential Resource

Abstract Creation of forest shelterbelts in steppe zone is important because they allow to obtain the highest yields of grains of cereals where the area of the most favorable conditions for growth is formed in comparison with many other soil-climatic regions. Melliferous and pollen production value of lands changes as a result of anthropic landscape conversion from agrarian to forest agrarian. There are a lot of melliferous trees and shrubs in forest belts; some of them have been introduced from the other floristic regions and are well naturalised in the local conditions. Nature-oriented potential resource of forest belts is in carbon deposition and oxygen production by phytomass of the main species. The aim of the research is to evaluate the bioresource potential of forest belts in the conditions of steppe agrarian landscapes. Bioresource potential (Brp) of forests for honey supply in the region was defined according to the distribution of species in the area. Potential honey stock of melliferous lands, represented by forest stands was assigned according to their area, given by the Forestry Department of Rostov region, and the average normative honey productivity of 1 ha of these crops. The number of beehives (N) necessary for honey supply that use ½ of bioresource forest potential was calculated according to the need of a bee family in honey per year. Value of nature-oriented resource of black locust (Robinia pseudoacacia) stands was defined according to the amount of oxygen produced and carbon deposed. Pure and mixed forest belts with the share of black locust from 60 to 80% (335.0–494.5 kg/ha) in composition with ash (Fraxinus sp.), Norway maple, Siberian elm (Ulmus pumila), apricot and dense structure of honey suckle and Siberian pea tree underbrush have the highest productivity. The total volume of possible honey yield from forest belts of agro-forest landscapes in the studied region is 26,379.8 t. Maximum indices of carbon fixation and oxygen production are observed in the maturing stands of black locust, and the largest honey stock dominate in average age stands and are 3,755,000 t, 10,288,000 t and 25,200 t, respectively. The role of the whole system in the increase of landscape honey productivity and formation of forage conveyor for bees and enthomophages might be much more if the recommended assortment of the best melliferous and pollen bearing species would be more completely used when forest belts are created.

scholarly journals ГНЕЗДОВАЯ БИОЛОГИЯ ГРАЧА (CORVUS FRUGILEGUS) В АНТРОПОГЕННО ИЗМЕНЕННЫХ СТЕПНЫХ ЭКОСИСТЕМАХ (НА ПРИМЕРЕ БОТИЕВСКОЙ ВЭС)

2016 ◽  
Vol 6 (01) ◽  
pp. 41-62
Author(s):  
A. O. Dranga ◽  
P. I. Gorlov ◽  
A. V. Matsyura ◽  
R. Budgey
Keyword(s):  
Wind Farm ◽  
Black Locust ◽  
Robinia Pseudoacacia ◽  
Mixed Forest ◽  
Forest Belt ◽  
Breeding Area ◽  
Corvus Frugilegus ◽  
Quantitative Characteristics ◽  
Nesting Behaviour ◽  
Forest Belts

<p>The article gives a space-structural characteristic of rook (Corvus frugilegus) nesting places in the territory of Botievo wind farm (Zaporizhzhia region). The distribution of the rook colonies around the territory, the structure of the colonies, the dependence of the location of the nests on the height, diameter, condition and species composition of tree and shrub plantings are analyzed and studied. The types and methods of the localization of nests in the trees and their quantitative characteristics are highlighted. The consortium relations of the rook and the risks associated with living near existing wind turbines are described.</p><p>In 2015 some six colonies were found: 2 medium (51-100 nests) and 4 large (101-500 nests) ones. All the colonies were located in the forest belts, mainly represented by locust trees <em>Gleditsia triacanthos</em> (5 colonies) and in the mixed forest consisting of the mulberry <em>Morus sp.</em>, maple <em>Acer</em>, black locust <em>Robinia pseudoacacia,</em> and locust trees (1 colony). The area occupied by colonies had a four-fold difference between 977-3994 m<sup>2</sup>, while the number of the rook nests fluctuated in a seven-fold range - 52-343 nests.</p><p>Analysis of different indicators describing the structure of the rook colonies revealed certain dependence between the breeding area and the number of the occupied trees (r = 0.98); the breeding area and the number of nests (r = 0.71); the number of nests in the colony and the closeness of the trees in the forest belts (r = 0.96); the number of nests and the number of the occupied trees (r = 0.81), the height of the tree and the nest on it (r = 0.64). The characteristic of the location of nests in different rows of the forest belt revealed the shift of the density of the occupation of trees in large colonies to one of the outer rows, where there were 34.8-50.7 percent of all the nests.</p><p>Typology and localization of rook nests in the trees has 11 options of the location. The type of the location of nests near the trunk of the tree dominated (59.74 percent of trees and 67.02 percent of all nests). It is shown that rooks demonstrate the plasticity of the nesting behaviour to the changing environmental conditions.</p><p><em>Keywords: Rook (Corvus frugilegus), Zaporizhia region, wind farm, nesting area, colony structure, spatial distribution, colony.</em></p>

scholarly journals PHYTOTOMASS OF ROBINIA PSEUDOACACIA L. TRUNK COMPONENTS IN THE PLANTED BLACK LOCUST STANDS WITHIN NORTHERN STEPPE ZONE OF UKRAINE

2018 ◽  
pp. 141-147
Author(s):  
S. A. Sytnyk
Keyword(s):  
Mathematical Model ◽  
Strong Correlation ◽  
Black Locust ◽  
Robinia Pseudoacacia ◽  
Steppe Zone ◽  
Data Set ◽  
Constant Height ◽  
Dry Conditions ◽  
Robinia Pseudoacacia L ◽  
Three Factor

The results of simulation of the above-ground phytomass of the components of Black locust tree trunks in the planted stands within the Northern Steppe zone of Ukraine are presented. Correlation and statistical analyses of the data set from model trees were carried out. A reliable strong correlation between the formation of the trunk timber volume and the volume of the trunk in the bark and the values of the diameter of the trunk and the height of the trees were established. The mathematical dependences for estimating the volume of the black locust trunk fractions, namely, the volume of the trunk timber, the volume of the trunk bark and the volume of the trunk in the bark, were developed as two- and three-factor mathematical models. The graphical interpretation of changes in the trunk volume in the bark of trees at the constant height was presented under the developed mathematical model. The results of the development of normative support for evaluation of components of the trunk phytomass in freshly cut and absolutely dry conditions were given.

scholarly journals Biogecoenological approaches to creating standing woods in the steppe zone

2018 ◽  
Vol 47 ◽  
pp. 29-39
Author(s):  
W. A. Gorejiko
Keyword(s):  
Management Practices ◽  
Forest Cover ◽  
Mixed Forest ◽  
Cost Effective ◽  
Steppe Zone ◽  
Theoretical Background ◽  
Experimental Comparison ◽  
Ecological Requirements ◽  
Moisture Deficit ◽  
Forest Belts

Feasibility of modern biogecoenological approaches to creating standing woods in the steppe zone of Ukraine has been demonstrated. Theoretical background of increasing forest cover percentage in the steppe zone based on the typology of standing woods by A. L. Belgard has been revealed. Experience gained in creating standing woods in Ukraine, achievements and errors depending on the technology used for forest planting are described. Experimental comparison of forest improvement efficiency allowed to develop and recommend long-range structure of wood and shrub species and their balance in mixed forest stands. Cost-effective technology of soil cultivation for planting forests has been revealed. Validated design of protective belts, ways of keeping soils free of weeds as well as silvicultural management practices are recommended. Basic techniques of forest improvement on gully and ravine lands, particularly ways of relief optimization, are described in detail. Technological characteristics of thinning in standing woods delivering the best possible wind permeability of protective belts are given. Actions aimed at reducing soil moisture deficit as well as improving microclimatic characteristics of forest belts and making the process of forest improvement more affordable are revealed. Therefore, based on all-around study of standing woods under the conditions of the steppe zone of Ukraine, more advanced and cost-effective techniques of creating standing woods that better meet silvicultural, reclamative and ecological requirements have been offered.

scholarly journals Basic density and crown parameters of forest forming species within Steppe zone in Ukraine

2018 ◽  
Vol 45 (2) ◽  
pp. 82-91
Author(s):  
Svitlana Sytnyk ◽  
Viktoriia Lovynska ◽  
Petro Lakyda ◽  
Katerina Maslikova
Keyword(s):  
Scots Pine ◽  
Prediction Models ◽  
Black Locust ◽  
Robinia Pseudoacacia ◽  
Basic Density ◽  
Steppe Zone ◽  
Tree Crown ◽  
Crown Volume ◽  
Branch Biomass ◽  
Crown Characteristics

Abstract The parameters of wood density (WD), bark density (BD) and tree crown characteristics are not only important for estimation of the aboveground biomass, but they also serve as indicators for the timber quality. This study had two objectives: Black locust (Robinia pseudoacacia L.) – an introduced species; Scots pine (Pinus sylvestris L.) – an aboriginal species. Black locust and Scots pine from the Steppe zone in Ukraine were compared in their WD and BD, and in the morphological parameters of their tree crowns. There were determined basic WD and BD for differently aged individuals of Black locust and Scots pine. Generally, a higher WD was found for Black locust trees. The average Black locust WD was 518 kg m−3, ranging from 375 kg m−3 to 612 kg m−3; with the average BD – 294 kg m−3, ranging from 214 kg m−3 to 421 kg m−3. The average Scots pine WD was 414 kg m−3, ranging from 254 to 491 kg m−3; with average BD – 317 kg m−3, ranging from 178 to 433 kg m−3. The dependences between WD, BD and biometric tree parameters were identified by correlation analysis. The crown diameter for Black locust and Scots pine was described with fixed prediction models. We proposed particular equations for relationships between foliage biomass and branch biomass, derived from the crown volume of the investigated species.

scholarly journals Characteristics of artificial forest belts invasion by Parectopa robiniella (Clemens, 1863) (Gracillariidae stainton, 1854) in Dnipropetrovsk oblast

2021 ◽  
Vol 50 ◽  
pp. 63-69
Author(s):  
K. K. Holoborodko ◽  
M. V. Shulman ◽  
I. M. Loza ◽  
O. Ye. Pakhomov
Keyword(s):  
Leaf Development ◽  
Leaf Blade ◽  
Black Locust ◽  
Robinia Pseudoacacia ◽  
Age Groups ◽  
Tree Age ◽  
Forest Belt ◽  
Leaf Segment ◽  
Age Related ◽  
Forest Belts

We studied characteristics of invasion by Parectopa robiniella Clemens, 1863 the black locust (Robinia pseudoacacia Linnaeus, 1753) plantations used for field protection and anti-erosion purposes on the example of an artificial forest belt in Mayorka village in Dnipropetrovsk district, Dnipropetrovsk Oblast (Mykilsky Forestry of the Dnipro Forest Enterprise). Monitoring surveys were conducted during the growing seasons of 2014–2021. The invasion of field-protective forest belts does not appear evenly; we found that the tree age is the main factor in this process. Because black locust plantings occupy the most significant area among artificial field-protective plantings in Ukraine, we studied the characteristics of their invasion by the insect species. It was found that R. pseudoacacia manifests itself relatively actively in almost all natural zones in Ukraine, mainly due to its spread by root growth. The forest belt surveys allowed us to distinguish three age-related variants of R. pseudoacacia trees (initial trees planted in composition of a forest belt (50–70 years), sprouting trees (15–25 years), and young trees (up to 15 years)). Monitoring surveys have shown varying degrees of P. robiniella invasion of three age groups of trees. It was discovered that the invader mainly develops mines on the leaves of young trees (up to 15 years old). According to the results of calculating the average number of mines on a simple leaf, it turned out that P. robiniella most often formed the mine on the lower (near the petiole) leaf segment in all three age tree groups. Determination of the characteristics of the relative invasion of simple leaflets from the total number of damaged leaflets showed that the invasion of the leaf blade was highest within the location of the middle leaflets on Robinia complex leaf. Such characteristics of invasion can be explained by the different growth rates of R. pseudoacacia leaf blade and the quality characterization of leaf tissues. Thus, our survey confirmed the assumption of O. V. Sinchuk (2016) that the topical specificity of invasion derived from the peculiarities of divergent leaf development and acropetal leaf development of the feeding plant.

Improved allometric equations for black locust (Robinia pseudoacacia) in the Coweeta Basin

2021 ◽  
Author(s):  
Joel L. Scott ◽  
Chelcy F. Miniat ◽  
Jessie Motes ◽  
Sarah L. Ottinger ◽  
Nina Wurzburger ◽  
...  
Keyword(s):  
Black Locust ◽  
Robinia Pseudoacacia ◽  
Allometric Equations

scholarly journals HEAT-INDUCED CHEMICAL AND COLOR CHANGES OF EXTRACTIVE-FREE BLACK LOCUST (ROBINIA PSEUDOACACIA) WOOD

BioResources ◽  
2012 ◽  
Vol 7 (2) ◽  
Author(s):  
Yao Chen ◽  
Jianmin Gao ◽  
Yongming Fan ◽  
Mandla A. Tshabalala ◽  
Nicole M. Stark
Keyword(s):  
Black Locust ◽  
Robinia Pseudoacacia ◽  
Color Changes ◽  
Free Black
Sign in / Sign up

Export Citation Format

Share Document