scholarly journals Ecological and biological properties of lawn coverages of city of Nikopol (Dnepropetrovsk area)

2018 ◽  
Vol 47 ◽  
pp. 11-19
Author(s):  
L. P. Mytsyk ◽  
A. A. Polischuk ◽  
O. I. Lisovets
Keyword(s):  
Species Composition ◽  
Lolium Perenne ◽  
Poa Pratensis ◽  
Ambrosia Artemisiifolia ◽  
Mutual Correlation ◽  
Statistical Probability ◽  
Wide Range ◽  
Projective Coverage ◽  
The City ◽  
Poa Angustifolia

The value of lawns shows up completer in all, when they occupy 40 – 90 % of the areas of green plantations. However in industrial cities their part is less, they have the mainly unsatisfactory state, contain the ruderal species. Therefore an ecological ground of creation of proof lawn phytocenosis in cities with high technogenic pressure, and also development of research and practice measures of their arrangement in the conditions of certain anthropogenic landscape taking into account the ecologic and biologic features of turf-forming species and terms of the urbanized environment is the scientific issue. The aim of our research is: on the basis of ecologo-phytocenotic researches to set the phytocenotic features of lawns and coverage of lawn type of the urbanized ecosystems on the example of Nikopol for development of ecological bases of creation of proof cenosis in municipal habits and decision of questions of optimization of environment. The trial areas under study were located among grasses of grass type and ornamental lawns in the city of Nikopol. The administrative and residential areas of the city were covered. In total, thirty test sites of size 1m2 (metrics) were described, divided into 120 areas of size 0,0625 m2. Characteristics were studied on each test area: illumination, species composition, percentage of projective coverage of each species found, percentage of free plant area. In the 30 trial sites covered by our research, 44 species of plants belonging to 15 families were identified. Species saturation of investigated test areas (1m2) varied from 10 to 17 species. Among the families, the primacy of the species composition was occupied by Asteraceae and Poaceae.Taking into account the instructions of V.V. Tarasov, the spectrum of the first percentages of the occurrence of families reproduces the composition of the regional flora with the dominance of cereals and herbs. The analysis of herbaceous vegetation was carried out taking into account the prevalence (in the event of a species) and the quantitative role in the formation of grass (projective coverage). This made it possible to find out the potentialities of species in a certain growth area, that is, competing ability.The triumphal triumph in the whole spectrum of the species we found among the grasses are Trifolium repens L. (occurrence of 93%), Polygonum aviculare L. (90 %), Taraxacum officinale Webb. ex Wigg. (83 %), Ambrosia artemisiifolia L. (80 %), Achillea submillefolium Klok. et Krytska (70 %), Convolvulus arvensis L. (70 %) etc. These are representatives of weed vegetation, for the most part – ruderal species, and even those that are quarantine and undesirable for urban lawn phytocoenoses.Of the Poaceae family, Poa angustifolia L. (87%), Elytrigia repens (L.) Nevsky (77%), Lolium perenne L. (70%) have high incidence. The indicated plants are representatives of both steppe flora, and ray and even forest, which speaks of a wide range of ecological conditions of location among studied lawn phytocoenoses. Typical species that are able to form the most decorative grass cover (according to the classification of O. Laptev) are represented by the species Poa angustifolia, Lolium perenne, Poa pratensis L., Festuca valesiaca Gaud. Their prevalence in the herb is quite variable: from the presence on most of the test areas - Poa angustifolia, to those who met quite rarely  – Festuca valesiaca.Most of the investigated test areas form a thin-grasshopper and pyrite-grass-mixed grass group, which corresponds to the specific structure of meadow lawns and conventional urban grasslands. The ecological and phytocenotic composition of the investigated vegetation groups of the lawn type reflects the system formed by certain representatives that make up the botanical and ecological basis for the creation of stable long-lived grass coverings in the urban agglomeration of the steppe zone, is an objective benchmark for targeting the corresponding phytocoenic processes in the desired direction.Correlations analysis of projective coatings was performed to find out the relationship between Ambrosia artemisiifolia and other representatives of the lawn flora. The calculation is based on data from the area of ​​0.25m2 (120 sites). The obtained materials allowed to reveal a mutual correlation of quantitative indicators with a high degree of statistical probability. Thus, a probable negative correlation between the parameters of the projective cover of the plants of the family Fabaceae and Ambrosia artemisiifolia was found.

scholarly journals Seasonal dynamics of lawn coverages of Nikopol city (Dnepropetrovsk area)

2019 ◽  
Vol 48 ◽  
pp. 14-24
Author(s):  
O. I. Lisovets ◽  
A. A. Polischuk
Keyword(s):  
Species Composition ◽  
Lolium Perenne ◽  
Seasonal Dynamics ◽  
Urban Areas ◽  
Poa Pratensis ◽  
Growing Season ◽  
Ambrosia Artemisiifolia ◽  
Projective Cover ◽  
Polygonum Aviculare ◽  
Poaceae Family

The features of the seasonal dynamics of the species composition, the total projective cover, the ecomorphic structure and the decorative score of the lawn coverings of the city of Nikopol are studied. It was revealed that during the growing season, representatives of the Poaceae family dominate in the projective cover and species composition of grass communities in urban areas. In spring, the participation of Brassicaceae and Lamiaceae is increased, in summer and autumn – Fabaceae and Asteraceae. A study of the dynamics of the species composition showed that Poa angustifolia L. and Polygonum aviculare L. dominate in the majority of Nikopol's lawns in spring. In summer, Lolium perenne L. and Ambrosia artemisiifolia L. are added to them. In autumn, the most active are Lolium perenne and Poa pratensis L. Analysis of the seasonal dynamics of the total projective coverage of test areas showed that the average values ​​of this indicator are observed at the beginning of the growing season. In summer, the total area of ​​the green parts of the plants is reduced. At the end of the growing season, due to the increase in productive soil moisture, the photosynthetically active plant area increases significantly in areas with low anthropogenic impact, remains at summer levels in places of medium anthropogenic loading and significantly decreases in areas with high anthropogenic load. In the species composition, throughout the entire growing season in the biomorph spectrum, hemicryptophytes are the most active, among ecomorphs are xeromesophytes, mesotrophs, ruderants and stepants. Decorativeness is quite low, on a five-point scale, ranges from 2.23 to 3.49, due to the presence of weeds and high anthropogenic stress. In order to improve the decorative, phytomeliorative and hygienic properties of the grass cover, it is advisable to recommend systematic grass cutting (to reduce the activity of annual weeds), as well as the spread of perennial forest and meadow species.

Death in the City

2017 ◽  
Author(s):  
Kathryn A. Sloan
Keyword(s):  
Scientific Inquiry ◽  
The United States ◽  
Violent Death ◽  
Special Relationship ◽  
Intimate Friend ◽  
Counter Narrative ◽  
Wide Range ◽  
European Heritage ◽  
The City ◽  
The Temple

Popular culture has long conflated Mexico with the macabre. Some persuasive intellectuals argue that Mexicans have a special relationship with death, formed in the crucible of their hybrid Aztec-European heritage. Death is their intimate friend; death is mocked and accepted with irony and fatalistic abandon. The commonplace nature of death desensitizes Mexicans to suffering. Death, simply put, defines Mexico. There must have been historical actors who looked away from human misery, but to essentialize a diverse group of people as possessing a unique death cult delights those who want to see the exotic in Mexico or distinguish that society from its peers. Examining tragic and untimely death—namely self-annihilation—reveals a counter narrative. What could be more chilling than suicide, especially the violent death of the young? What desperation or madness pushed the victim to raise the gun to the temple or slip the noose around the neck? A close examination of a wide range of twentieth-century historical documents proves that Mexicans did not accept death with a cavalier chuckle nor develop a unique death cult, for that matter. Quite the reverse, Mexicans behaved just as their contemporaries did in Austria, France, England, and the United States. They devoted scientific inquiry to the malady and mourned the loss of each life to suicide.

Museum Preserves in the Sphere of “Cultural Tourism”: Through the Example of the Cultural Preserves of Tatarstan

2019 ◽  
Vol 9 (4) ◽  
pp. 193-198
Author(s):  
Lyudmila S. Timofeeva ◽  
Albina R. Akhmetova ◽  
Liliya R. Galimzyanova ◽  
Roman R. Nizaev ◽  
Svetlana E. Nikitina
Keyword(s):  
19Th Century ◽  
Art Museum ◽  
Medium Size ◽  
Business Elite ◽  
Wide Range ◽  
The Subject ◽  
Tourist Center ◽  
Regional Authorities ◽  
The 19Th Century ◽  
The City

Abstract The article studies the existence experience of historical cities as centers of tourism development as in the case of Elabuga. The city of Elabuga is among the historical cities of Russia. The major role in the development of the city as a tourist center is played by the Elabuga State Historical-Architectural and Art Museum-Reserve. The object of the research in the article is Elabuga as a medium-size historical city. The subject of the research is the activity of the museum-reserve which contributes to the preservation and development of the historical look of Elabuga and increases its attractiveness to tourists. The tourism attractiveness of Elabuga is obtained primarily through the presence of the perfectly preserved historical center of the city with the blocks of integral buildings of the 19th century. The Elabuga State Historical-Architectural and Art Museum-Reserve, which emerged in 1989, is currently an object of historical and cultural heritage of federal importance. Museum-reserves with their significant territories and rich historical, cultural and natural heritage have unique resources for the implementation of large partnership projects. Such projects are not only aimed at attracting a wide range of tourists, but also stimulate interest in the reserve from the business elite, municipal and regional authorities. The most famous example is the Spasskaya Fair which revived in 2008 in Elabuga. It was held in the city since the second half of the 19th century, and was widely known throughout Russia. The process of the revival and successful development of the fair can be viewed as the creation of a special tourist event contributing to the formation of new and currently important tourism products.

Forest path condition monitoring based on crowd-based trajectory data analysis

2020 ◽  
pp. 1-18
Author(s):  
Francisco Arcas-Tunez ◽  
Fernando Terroso-Saenz
Keyword(s):  
Information Acquisition ◽  
Road Network ◽  
Road Networks ◽  
Trajectory Data ◽  
Country Road ◽  
Wide Range ◽  
Sport Activities ◽  
Path Condition ◽  
Spatio Temporal ◽  
The City

The development of Road Information Acquisition Systems (RIASs) based on the Mobile Crowdsensing (MCS) paradigm has been widely studied for the last years. In that sense, most of the existing MCS-based RIASs focus on urban road networks and assume a car-based scenario. However, there exist a scarcity of approaches that pay attention to rural and country road networks. In that sense, forest paths are used for a wide range of recreational and sport activities by many different people and they can be also affected by different problems or obstacles blocking them. As a result, this work introduces SAMARITAN, a framework for rural-road network monitoring based on MCS. SAMARITAN analyzes the spatio-temporal trajectories from cyclists extracted from the fitness application Strava so as to uncover potential obstacles in a target road network. The framework has been evaluated in a real-world network of forest paths in the city of Cieza (Spain) showing quite promising results.

scholarly journals TARGET MODAL SPLIT MODEL

Transport ◽  
2012 ◽  
Vol 26 (4) ◽  
pp. 418-424 ◽  
Author(s):  
Valentina Basarić ◽  
Jadranka Jović
Keyword(s):  
Public Transport ◽  
Stepwise Regression ◽  
Statistical Data ◽  
Transport Policy ◽  
Wide Range ◽  
Policy Measures ◽  
Novi Sad ◽  
The Relationship ◽  
The City ◽  
Statistical Results

The research presented in this paper is aimed at defining a model that enables the management of the relationship between private vehicles and public transport applying the available instruments of city transport policy such as parking policy and public transport policy measures. Statistical data used for modelling is sourced from the database in a wide range of EU cities. The target model was developed in the form of stepwise regression analysis. Very favourable statistical results were obtained, and the subsequent tests on the city of Novi Sad (250000 inhabitants) led to the conclusion that the obtained results were suitable for implementation in practice. The results of the implemented procedure are of great importance for the enhancement of the existing transport policies in cities, as they enable the development of strategies for finding combinations of instruments that would bring the transport system and urban environment into a desired-viable rather than consequential condition.

A Comparison of Urban with Rural Support Networks: Liverpool and North Wales

1995 ◽  
Vol 15 (1) ◽  
pp. 59-81 ◽  
Author(s):  
G. Clare Wenger
Keyword(s):  
Rural Communities ◽  
Support Networks ◽  
Support Network ◽  
Social Variables ◽  
North Wales ◽  
Care And Support ◽  
Wide Range ◽  
Highly Correlated ◽  
High Level ◽  
The City

AbstractThis paper compares findings on the distribution of support networks in the City of Liverpool and in rural communities in North Wales. It demonstrates that while support network type is highly correlated with a wide range of demographic and social variables in both urban and rural samples, the nature of the relationships are not always comparable. The paper shows how cultural, migration and socio-economic factors interact to affect the formation of different types of support networks. As a result of a more stable elderly population, more old people in Liverpool have network types able to provide a high level of informal care and support.

Visual Arts, Representations and Interventions in Contemporary China

2018 ◽  
Keyword(s):  
Urban Space ◽  
Visual Arts ◽  
Cultural Production ◽  
Mainland China ◽  
Social Changes ◽  
Power Structures ◽  
Cultural Activism ◽  
Political Issues ◽  
Wide Range ◽  
The City

This edited volume provides a multifaceted investigation of the dynamic interrelations between visual arts and urbanization in contemporary Mainland China with a focus on unseen representations and urban interventions brought about by the transformations of the urban space and the various problems associated with it. Through a wide range of illuminating case studies, the authors demonstrate how innovative artistic and creative practices initiated by various stakeholders not only raise critical awareness on socio-political issues of Chinese urbanization but also actively reshape the urban living spaces. The formation of new collaborations, agencies, aesthetics and cultural production sites facilitate diverse forms of cultural activism as they challenge the dominant ways of interpreting social changes and encourage civic participation in the production of alternative meanings in and of the city. Their significance lies in their potential to question current values and power structures as well as to foster new subjectivities for disparate individuals and social groups.

Cannabis Consumption in Amsterdam, Bremen and San Francisco: A Three-City Comparison of Long-Term Cannabis Consumption

2002 ◽  
Vol 32 (2) ◽  
pp. 395-412 ◽  
Author(s):  
Susanne Borchers-Tempel ◽  
Birgitta Kolte
Keyword(s):  
San Francisco ◽  
Consumption Patterns ◽  
Research Focus ◽  
Wide Range ◽  
Drug Policies ◽  
Cannabis Consumption ◽  
The City ◽  
Detailed Questionnaire ◽  
Consumer Types

Long-term cannabis consumers in Amsterdam, Bremen and San Francisco were asked in a detailed questionnaire about their experiences with cannabis products. The research focus was the question of how the consumption of cannabis is realized under the conditions established through different drug policies. The research utilized a sample of 522 cannabis consumers exhibiting a wide range of experiences and different consumption patterns. The authors were able to elaborate five 1different consumer types. The prevalence of these specific user types was closely associated with the city where the consumers reside. There were also some direct consequences of the different drug politics in place in the different cities, such as the level of fear associated with the potential criminal consequences of use, and the sources for the purchase of cannabis products.

Bubble dynamics and oxygen transfer in a hypolimnetic aerator

1998 ◽  
Vol 37 (2) ◽  
pp. 293-300 ◽  
Author(s):  
Vickie L. Burris ◽  
John C. Little
Keyword(s):  
Gas Phase ◽  
Bubble Size ◽  
Oxygen Transfer ◽  
Bubble Dynamics ◽  
Water Flow Rate ◽  
Flow Rates ◽  
Wide Range ◽  
The City ◽  
Close Fit ◽  
Water Supply Reservoirs

A hypolimnetic aerator operating in one of the City of Norfolk's water supply reservoirs was tested. Dissolved oxygen (DO) profiles, water flow rate, and gas-phase holdup were measured over a wide range of applied air flow rates. A model that was developed to predict oxygen transfer in a Speece Cone was modified to conform to the conditions of the hypolimnetic aerator. By varying a single parameter (the initial bubble size) the model was found to provide a close fit to the experimental DO profiles as well as the observed gas-phase holdup. The model was used to show that a doubling in oxygen transfer may be achieved if initial bubble size is reduced from 5 mm to 2.5 mm. Knowing the initial bubble size, it should be possible to predict water velocity by incorporating the effect of momentum. Further work is now underway to test this approach and to examine the possibility of extending this generalized model to cover the range of hypolimnetic aeration and oxygenation devices.

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