scholarly journals Minnesota trees and shrubs : an illustrated manual of the native and cultivated woody plants of the State / Frederic E. Clements, C. Otto Rosendahl, Frederic K. Butters.

1912 ◽  
Author(s):  
Frederic E. Clements ◽  
F. K. Butters ◽  
C. O. Rosendahl
Keyword(s):  
Woody Plants ◽  
The State ◽  
Trees And Shrubs

Жизненное состояние древесных насаждений в условиях города Актобе (Казахстан)

2017 ◽  
Vol 7 (4) ◽  
pp. 51-55
Author(s):  
S. A. Abiev ◽  
S. A. Aipeisova ◽  
N. A. Utarbaeva
Keyword(s):  
Urban Area ◽  
Woody Plants ◽  
Health State ◽  
Urban Habitats ◽  
Resistant Species ◽  
Vital State ◽  
Ulmus Laevis ◽  
Urban Conditions ◽  
The City ◽  
Trees And Shrubs

<p>The purpose of our work is to assess the health state of woody plants growing in different habitats of the city of Aktobe. We have studied the health state of arboreal and shrubby plants growing in various urban habitats; the survey was conducted during 2016-2017 by route-visual method. We performed the analysis of species diversity, abundance and density in urban area. The assessment of health state of the trees was made according to V.A. Alekseev. From your data and literature review we established that such species as Ulmus pinnato-ramosa, Acer negundo, Populus tremula, Populus nigra, and Syringa vulgaris have strong winter resistnce in the territory of Aktobe; we registered that only their apex buds and emds of the shoots were frozen in severe winters. The medium-resistant speices include Ulmus laevis and Acer platonoides. They are less plastic and suffer from late spring and early autumn frosts. The Amorpha fruticosa, Vitis vinifera, and Parthenocissus guinguefolia could be considered as the non-resistant species, since they usually freeze up to the snow cover line. The analysis of the vital state made it possible to assess the resistance to urban conditions of the majority of trees and shrubs registered in urban habitats of Aktobe. According to the preliminary data, the origin of the plant and its winter resistance are of main importance when introducing new species to urban area.</p>

scholarly journals Availability and use of woody plants in a agrarian reform settlement in the cerrado of the state of Goiás, Brazil

2013 ◽  
Vol 27 (3) ◽  
pp. 604-612 ◽  
Author(s):  
Vanessa Pessanha Tunholi ◽  
Marcelo Alves Ramos ◽  
Aldicir Scariot
Keyword(s):  
Woody Plants ◽  
Agrarian Reform ◽  
The State

scholarly journals The assessment of woody plants vital state in the landscaping of Ishim

2020 ◽  
Vol 9 (3) ◽  
pp. 142-147
Author(s):  
Olga E. Tokar
Keyword(s):  
Woody Plants ◽  
Current State ◽  
Quantitative Characteristics ◽  
Vital State ◽  
Total Composition ◽  
Vitality Index ◽  
First Time ◽  
The Town ◽  
Trees And Shrubs ◽  
Qualitative And Quantitative Characteristics

This paper analyzes the current state of landscaping in Ishim. The data on the qualitative and quantitative characteristics of woody plants have been obtained for the first time; the assessment of trees and shrubs state is based on the analysis of the vitality index. A database of green plants within 21 objects in Ishim was created and analyzed. The paper also contains data on the species diversity of trees and shrubs in Ishim. It turned out that the objects under study have trees and shrubs placed in special dividing strips, linearly, in rows or in small compact groups, less often they are planted singly. The species composition is represented by 47 species from 28 genera, 16 families and 2 divisions. The biomorphological structure is represented by trees (25, or 53% of species) and shrubs (22, or 47% of species). The total composition of tree and shrub plantations, determined by the number of trunks (bushes) and the percentage of woody plants, is 2854; the composition of the preserved ones is 2 815 (99%) pieces; the ones assigned for removal are 39 (1%) pcs. The vitality index shows that among 85% of the studied objects of the town at the time of the survey were healthy, among 10% of the objects they were qualified as damaged, among 5% of them were severely damaged. Based on the results of examining crowns and trunks of woody plants, signs of diseases and pests, a plan of measures for the treatment, restoration and preservation of woody plants was drawn up and recommendations were given for caring, sanitary felling and removal of single specimens.

scholarly journals Influence of Anthropogenic Factors on the State of Woody Plants in Volgograd

2021 ◽  
pp. 5-11
Author(s):  
Tatyana Tereshchenko ◽  
Galina Sroslova ◽  
Margarita Postnova ◽  
Yuliya Zimina ◽  
Mikhail Sroslov
Keyword(s):  
Woody Plants ◽  
Chemical Elements ◽  
Green Building ◽  
The State ◽  
Young Age ◽  
Solid Particles ◽  
Anthropogenic Factors ◽  
Horse Chestnut ◽  
Negative Factors ◽  
The City

Studies conducted in different cities have shown that trees growing in urbanized areas reduce noise levels and cleanse the air of solid particles, ozone, sulfur dioxide, carbon monoxide, nitric oxide and other pollutants contained in car fumes, transport dust and generated by industry. The reaction to the influence of negative factors in woody plants is in disturbances in metabolism and biochemical composition, their general development also changes, and their population decreases. The indicators of disorders occurring at the cellular and tissue levels are more sensitive to the influence of negative anthropogenic factors in comparison with external manifestations. The research was carried out on woody plants: small-leaved linden (L. Tíliacordáta), horse chestnut (L. Aésculus); the soil. The research was carried out in 9 districts of Volgograd. The assessment of the state of woody plants was carried out by the visual method based on external signs. GOST methods were used to determine the concentrations of chemical elements in the foliage and soil of woody plants. Using physical and chemical methods, the concentrations of chemical elements in the soil and biomass of woody plants taken from the selected areas of the city of Volgograd were obtained, and the correlation between these indicators and the life state of woody plants was determined. The dependence of the indicators of the concentration of nutrients in the soil and the state and viability of woody plants was well traced. In general, the state of most of the woody plants of the city was healthy or moderately weakened. Such a high level of the life state is explained by the relatively young age structure of the studied plants, because at a young age woody plants are more resistant to negative factors of the urban environment. The revealed features of the life of woody plants in the city can be taken into account in the practice of city green building.

Nectria cinnabarina. [Descriptions of Fungi and Bacteria].

1977 ◽  
Author(s):  
C. Booth
Keyword(s):  
Hong Kong ◽  
New Zealand ◽  
Geographical Distribution ◽  
Woody Plants ◽  
Considerable Importance ◽  
Northern Europe ◽  
Wide Range ◽  
The World ◽  
Facultative Parasite ◽  
Trees And Shrubs

Abstract A description is provided for Nectria cinnabarina. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Many species including Ribes and Robinia. This species occurs on conifers and on a wide range of broad-leaved trees and shrubs. DISEASE: Coral spot fungus. Evidence supports the view that this species is a facultative parasite of considerable importance on blackcurrants (48, 3063); it occurs as the cause of cankers of Robinia (54, 1020) and may attack many other woody plants (55, 655). GEOGRAPHICAL DISTRIBUTION: It is very common and widespread in Northern Europe and has frequently been reported from temperate parts of the world, USA, Canada, Australia and New Zealand, and also from India and Hong Kong. TRANSMISSION: Because of the slimy nature of the conidia and the fact that they form a hard crust in dry weather, wind is not considered as important as water in their dispersal. Even the ascospores appear to be extruded or discharged only in moist weather (Jorgensen, 1952). Entry is usually through wounds or dead buds (47, 1181; 48, 3063).

scholarly journals The Survival and Growth Rates of Woody Vegetation in the Man-Made Radějov Biocorridor During the Period of 1993 - 2012

2014 ◽  
Vol 6 (2) ◽  
pp. 88-117
Author(s):  
Boleslav Jelínek ◽  
Luboš Úradníček
Keyword(s):  
Czech Republic ◽  
Growth Rates ◽  
Woody Plants ◽  
Growth And Development ◽  
Agricultural Land ◽  
Woody Vegetation ◽  
The Czech Republic ◽  
Survival And Growth ◽  
The Given ◽  
Trees And Shrubs

AbstractThe first biocorridors were established in the territory of the Czech Republic in the 1990s. One of them, planted on a former agricultural land, was the Radějov biocorridor. This paper deals with the growth and development of trees and shrubs on three permanent research plots in 1993 - 2012. Repeated inventories of trees as well as monitoring of their biometrical parameters were carried out in both tree and shrub layers. The number of trees decreases with the increasing level of stand canopy. Moreover, mean heights, diameters and crown projection areas of selected woody plants were compared. Under the given conditions, the growth of these woody plants can be positively evaluated.

scholarly journals Analysis of dendroflora of the taras shevchenko park in the city of Ternopil

2021 ◽  
Author(s):  
R. B. Dudyn ◽  
◽  
O. M. Bahatska ◽  
M. P. Kurnytsʹka ◽  
L. S. Yashchuk ◽  
...  
Keyword(s):  
Woody Plants ◽  
Growth And Development ◽  
Deciduous Trees ◽  
Habitat Conditions ◽  
Large Area ◽  
Dead Trees ◽  
Regional Centers ◽  
Favorable Conditions ◽  
The City ◽  
Trees And Shrubs

The city of Ternopil is one of the regional centers of Ukraine, the rate of landscaping which is one of the highest. Among the plantations of the city with a large area (22,0 hectares) stands out the park of Taras Shevchenko, located on the banks of the Ternopil pond. V.M. Chernyak, V.O. Burma, I.O. Pyatkivsky, R.B. Dudyn, P.P. Tsaryk, S.M. Pidkhovna and others studied the flora of the city of Ternopil and the region. The dendroflora of the park includes 55 taxa of trees, shrubs and vines, which belong to 38 genera and 24 families. The most numerous in terms of number of representatives are the families Rosaceae and Pinaceae. The total number of woody plants is 1836 specimens. The park is significantly dominated by deciduous trees and shrubs (82%). In general, trees make up 77%, of which conifers – 12,4%. All woody plants of the park are phanerophytes, and mesophanerophytes dominate – 62%. In relation to light, light-loving species predominate (68%). 51% of plants are cold-resistant and only 19% are heat-loving. Most of the park's plants are resistant to environmental pollution (only 10% are not gas-resistant). The results of the study of plants in relation to fertility and soil moisture indicate favorable conditions for their growth and development, as most of them show medium and high demands on habitat conditions: 69% are meso- and mesohygrophytes and 56% – megatrophs. Based on the sanitary assessment of the plantations, it was found that about 8,5% of the park's plants have various damages: frost cracks, core rot, coppice, hollows. 8 dead trees were found, 32 specimens need sanitary pruning. 17 plants are recommended for removal for various reasons.

scholarly journals DIGITAL TECHNOLOGIES AT ANALYSIS OF THE WOOD PLANTS STATE

2020 ◽  
Vol 8 (1) ◽  
pp. 59-63
Author(s):  
Nina Kamalova ◽  
Nikolay Matveev ◽  
S. Ivannikov
Keyword(s):  
Environmental Factors ◽  
Woody Plants ◽  
Digital Technologies ◽  
Environmental Safety ◽  
Urban Environments ◽  
The State ◽  
Destructive Testing ◽  
Environmental Disasters ◽  
Macromolecular Systems ◽  
State Of Affairs

The state of woody plants determines the viability of forests and environmental safety in urban environments largely. Therefore, scientific studies of the tree response as a complex biosystem on environmental factors changes are especially relevant due to the growing threat of environmental disasters (environmental pollution, active felling, etc.). Many modern methods for assessing the state of such complex macromolecular systems are verbal in nature due to the lack of non-destructive testing methods with controlled accuracy. The shortage of experimental measurements retards the development of modeling the state of trees and, consequently, the development of methods for predicting their response on the influence of external factors. The development of digital technology can change the current state of affairs in this sphere. In the report, within the framework of a systematic approach, the possibility of using digital technologies at analyzing the response of the state of woody plants on environmental factors changes has analyzed. The results of studying the flow of salt solutions in the xylem of tree trunks are presented to solve the problem. Based on experimental data, models are proposed that can become the basis of calculation systems for analyzing the state parameters of woody plants and predicting the occurrence of environmental disasters.

scholarly journals Influence of the natural and climatic factors on variation in a crown shape, mechanical resistance and an accident rate of woody plants on the example of Juniperus virginiana L

2020 ◽  
pp. 93-100
Author(s):  
V. O. Kornienko
Keyword(s):  
Woody Plants ◽  
Climatic Factors ◽  
The State ◽  
Mechanical Resistance ◽  
Juniperus Virginiana ◽  
Accident Risk ◽  
Wind Force ◽  
Additional Mass ◽  
Accident Rate ◽  
Crown Shape

It has been experimentally found that the mono groups of Juniperus virginiana L. have less resistance to the natural and climatic factors, this is firstly due to increase in the height of biomass of the tree and secondly to application of loads in the form of a wind force, as well as an additional mass in precipitation. According to the results of diagnostics of the state and monitoring of sustainability of Juniperus virginiana L.plantings, the accident risk is estimated at 14% of the total number (585 units).

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