scholarly journals Aphids (Homoptera, Aphidodea) inhabiting the trees Crataegus x media Bechst. in the urban green area. Part I. The population dynamics

2013 ◽  
Vol 57 (1-2) ◽  
pp. 145-156
Author(s):  
Bożena Jaśkiwicz ◽  
Aneta Sławińska
Keyword(s):  
Population Dynamics ◽  
Weather Conditions ◽  
Aphid Species ◽  
Warm Spring ◽  
Mild Winter ◽  
Green Area ◽  
Aphis Pomi ◽  
Air Temperatures ◽  
Urban Green Area ◽  
Green Areas

The studies were conducted in the years 1999-2001 in the green areas of Lublin, on the trees of <i>Crataegus</i> x <i>media</i> Bechst. The purpose of the studies was to establish the species composition and the population dynamics of aphids inhabiting hawthorn in the street and park sites. The studies found out the presence of four aphid species on the examined trees, namely <i>Aphis pomi</i> De Geer, aphids from the genus <i>Dysaphis</i> Börn., <i>Ovatus crataegarius</i> (Walk.) and <i>Rhopalosiphum insertum</i> (Walk.). More aphid species and bigger populations were found in the street site (A) as compa red with the park site (B).The weather conditions (air temperatures of over 30°C and stormy rainfalls) limited the population of all aphid species. On the other hand, a mild winter and a warm spring with the rainfalls within the norm caused that the number of aphids decreased considerably.

scholarly journals Aphids (Homoptera, Aphidodea) inhabiting the shrubs of Pinus mugo Turra in the green areas of Lublin. Part I. The population dynamics

2012 ◽  
Vol 58 (1) ◽  
pp. 153-164
Author(s):  
Bożenna Jaśkiewicz ◽  
Aneta Sławińska
Keyword(s):  
Population Dynamics ◽  
Species Composition ◽  
Weather Conditions ◽  
Aphid Population ◽  
Pinus Mugo ◽  
Mountain Pine ◽  
Air Temperatures ◽  
Green Areas

The studies were conducted on the shrubs of mountain pine (<i>Pinus mugo</i> Turra) in the years 1999-2001. Observations were performed on the plants growing in the green areas of Lublin in two sites: a street site (A) and a park one (B). The purpose of the studies was to establish the species composition and the population dynamics of aphids inhabiting dwarf mountain pine. The studies on the shrubs of the mountain pine found out the presence of four species of aphids: <i>Cinara pini</i> L., <i>Schizolachnus pineti</i> F., <i>Eulachnus rileyi</i> (Will.) and <i>Pineus pini</i> (Ratz.). Among those, only <i>C. pini</i> occurred in both sites in each of the studied years. Weather conditions had an effect on the development of aphid population. A delayed period of vegetation, air temperatures above 30<sup>°</sup>C as well as stormy rainfalls considerably limited the population of aphids.

scholarly journals Applying remote sensing techniques to monitor green areas in Tashkent Uzbekistan

2021 ◽  
Vol 258 ◽  
pp. 04012
Author(s):  
Ilhomjon Aslanov ◽  
Uzbekkhon Mukhtorov ◽  
Rahimjon Mahsudov ◽  
Umida Makhmudova ◽  
Saida Alimova ◽  
...  
Keyword(s):  
Accuracy Assessment ◽  
Ground Truth ◽  
Population Increase ◽  
Visual Interpretation ◽  
Ground Truth Data ◽  
Capital Cities ◽  
Green Area ◽  
Urban Green Area ◽  
Green Areas ◽  
Remote Sensing Techniques

Land use and land cover (LULC) change are one of the most important signals of regional environmental monitoring and study. Recently, the pull of capital cities has snowballed, an increasing number of people moving to the cities, especially in developing countries. Consequently, as more people arrive at cities, the more pressure will be on land. Land price getting high and constructions try using open green areas. A wide variety of green areas of different sizes will be solve many urban diseases and ecological problems at the same time improve the quality and life of urban residents, as urban green area provides various ecosystem services. The green area includes parks, woodlands, nature reserves and bare lands. With the population increase and expansion of cities, an increasing amount of open area, woodland and bare land has been converted into construction land, buildings due to the increasing demands and residential land. For the accuracy assessment, we applied an automatically supervised classification using the software QGIS 3.18. The reference values were based on ground truth data and visual interpretation.

scholarly journals LAND COVER CHANGE DETECTION ANALYSIS ON URBAN GREEN AREA LOSS USING GIS AND REMOTE SENSING TECHNIQUES

2013 ◽  
Vol 11 ◽  
Author(s):  
Noorzailawati Mohd Noor ◽  
Alias Abdullah ◽  
Mohd Nasrul Hanis Manzahani
Keyword(s):  
Remote Sensing ◽  
Urban Areas ◽  
Kuala Lumpur ◽  
Gis And Remote Sensing ◽  
Detection Analysis ◽  
Green Area ◽  
Urban Green Area ◽  
Green Areas ◽  
Erdas Imagine ◽  
Remote Sensing Techniques

The loss of green area has been rising all over the world particularly in big cities. For a number of decades, urban sprawl and developments have changed the natural landscapes of urban areas where areas with green areas have been converted into built up developments and other land uses. Thus this research intends to study the changes of green areas in Kuala Lumpur based on land use detection analysis approach where 3 series of remote sensing images namely SPOT2, SPOT4 and IKONOS for year 1990, 2001 and 2010 have been used to acquire the data on the green area changes aided by ERDAS IMAGINE 2011 and ARGIS 9.2. The finding of the study shows that there is a decrease in the size of green area in Kuala Lumpur from year 1990-2010 due to pressure of urban developments. Two significant factors which contribute to the changes of green area in Kuala Lumpur have been identified in the study, which are the increase in built up areas and sprawl development pattern.

scholarly journals ICMS Ecológico

2021 ◽  
Vol 17 (2) ◽  
Author(s):  
Matheus Maramaldo Andrade Silva ◽  
Maria do Carmo Lima Bezerra
Keyword(s):  
Quality Of Life ◽  
Financial Incentives ◽  
Conservation Units ◽  
Urban Green ◽  
Current Period ◽  
Green Area ◽  
Urban Green Area ◽  
Green Areas ◽  
Regulatory Instruments

The Urban Green Areas System (UGAS) performs relevant functions for the quality of life by making cities healthier, which has become even more necessary in the current period of pandemic. However, even with these benefits, the practice of urban management indicates difficulties not only in the implementation, but also in the maintenance of the UGAS. One of the aspects that may explain the challenge of implementing and maintaining green areas in cities is the absence of regulatory instruments and financial incentives that support this system. In this line, in order to contribute to this discussion, one of the instruments that proved to be effective in environmental management will be studied, in this case for the creation and implementation of Conservation Units: the “ICMS Ecológico”. This article will study the characteristics of the UGAS associated with ecological and urban functions; the logic of adopting the “ICMS Ecológico” and will seek to define criteria that can be used for the implementation of a UGAS that prioritizes ecosystem thinking associated with the function of urban health. We started with the discussion about the mechanisms for adopting the “ICMS Ecológico” and followed the analysis of the standards established in the states for its application. As a result, it was found that there are similarities that can be applied to an implementation in the urban green area systems, which allowed the recommendation of criteria that can be used as a reference for the application of the “ICMS Ecológico” to support the UGAS and the promotion of healthier cities.

scholarly journals Aphids (Homoptera, Aphidodea) inhabiting the trees Crataegus x media Bechst. in the urban green area. Part II. Domination and frequency of aphids, their enemies and the damage caused by aphids

2013 ◽  
Vol 57 (1-2) ◽  
pp. 157-167
Author(s):  
Aneta Sławińska ◽  
Bożena Jaśkiwicz
Keyword(s):  
Chemical Composition ◽  
Aphid Species ◽  
Urban Green ◽  
Plant Parts ◽  
Green Area ◽  
Urban Green Area ◽  
Predatory Arthropods

The studies were conducted in Lublin in the years 1999-2001 in two sites (street and park ones) on the trees <i>Crataegus</i> x <i>inedia</i> Bechst. The purpose was to determine the domination and frequency of particular aphid species, their effect on the decorative character of plants as well as the occurrence of the aphidophagous in aphid colonies. It was found out that A. <i>pomi</i> was the dominating species in both sites. The decorative character of the studied trees was lowered by aphids A. <i>pomi</i> and aphids from the genus <i>Dysaphis</i>. Aphids from the genus <i>Dysaphis</i> also caused changes in the chemical composition of the injured plant parts. The presence of predatory arthropods was observed in aphid colonies occurring on hawthorn. The most numerous of these were the larvae of <i>Syrphidae</i> and <i>Coccinellidae</i>. The culture of parasitized aphids gave numerous flights of parasitoids and hyperparasitoids. Greater number of both predators and parasitoids of I and II grades were observed in the street site as compared to the park site.

LAND COVER CHANGE DETECTION ANALYSIS ON URBAN GREEN AREA LOSS USING GIS AND REMOTE SENSING TECHNIQUES

2013 ◽  
Vol 11 (3) ◽  
Author(s):  
Norzailawati Mohd Noor ◽  
Alias Abdullah ◽  
Mohd Nasrul Hanis Manzahani
Keyword(s):  
Remote Sensing ◽  
Urban Areas ◽  
Kuala Lumpur ◽  
Gis And Remote Sensing ◽  
Detection Analysis ◽  
Green Area ◽  
Urban Green Area ◽  
Green Areas ◽  
Erdas Imagine ◽  
Remote Sensing Techniques

The loss of green area has been rising all over the world particularly in big cities. For a number of decades, urban sprawl and developments have changed the natural landscapes of urban areas where areas with green areas have been converted into built up developments and other land uses. Thus this research intends to study the changes of green areas in Kuala Lumpur based on land use detection analysis approach where 3 series of remote sensing images namely SPOT2, SPOT4 and IKONOS for year 1990, 2001 and 2010 have been used to acquire the data on the green area changes aided by ERDAS IMAGINE 2011 and ARGIS 9.2. The finding of the study shows that there is a decrease in the size of green area in Kuala Lumpur from year 1990-2010 due to pressure of urban developments. Two significant factors which contribute to the changes of green area in Kuala Lumpur have been identified in the study, which are the increase in built up areas and sprawl development pattern.

scholarly journals Importance of Urban Green at Reduction of Particulate Matters in Sihwa Industrial Complex, Korea

2020 ◽  
Vol 12 (18) ◽  
pp. 7647 ◽  
Author(s):  
Sin-Yee Yoo ◽  
Taehee Kim ◽  
Suhan Ham ◽  
Sumin Choi ◽  
Chan-Ryul Park
Keyword(s):  
Particulate Matter ◽  
Reduction Rate ◽  
Residential Area ◽  
Industrial Complex ◽  
Urban Green ◽  
Area Reduction ◽  
Green Area ◽  
Urban Green Areas ◽  
Urban Green Area ◽  
Green Areas

The utilization of urban green areas has increased, but it is unclear whether urban green areas can decrease the concentration of particulate matter at an industrial complex city in Korea. We measured the extent of particulate matter (PM) reduction at a buffer green area in the Sihwa Industrial Complex. PM was measured at the industrial complex, the urban green area, and a nearby residential area from April to October 2019. PM reduction rates were highest at the urban green area in August and October, which is related to increased atmospheric mixing height and the active west wind blowing from the industrial complex to the residential area. Reduction rates of PM10 and PM2.5 at the urban green area showed the lowest values, namely 14.4% and 25.3%, respectively. The air temperature, wind speed, and humidity could affect the PM reduction rate by influencing the movement and dispersion of PM at the micro-spatiotemporal scale. These results indicated that PM concentration could be reduced by the structural change of a forest layer at a micro scale in urban green areas.

scholarly journals Bird breeding biology and homogenization process in an urban green area at Atlantic rainforest of Southeastern Brazil

2019 ◽  
Vol 14 (1) ◽  
pp. 83-98 ◽  
Author(s):  
Gabriel Silva Santos ◽  
Isael Colonna Ribeiro ◽  
Luana D'Avila Centoducatte ◽  
Sérgio Lucena Mendes
Keyword(s):  
Bird Species ◽  
Southeastern Brazil ◽  
Bird Diversity ◽  
Reproductive Pattern ◽  
Urban Centers ◽  
Urban Green ◽  
Homogenization Process ◽  
Green Area ◽  
Urban Green Area ◽  
Green Areas

Urbanization is a major cause of biotic homogenization, once it modifies species habitat and creates new environments in which only a few species are able to survive. However, many authors propose that planned green areas within the bounds of urban centers work real islands, providing shelter for several animal species. In this study, we verified the reproductive pattern of a community of birds within an urban green area in southeastern Brazil. Also, we compared the composition of breeding sites and reproductive activities of birds in different environments available and provided insights about how homogenization process affects birds in the study site. We recorded 359 reproductive sites of 36 species. Our data represents 48% of bird species recorded by previous reports at this study site. Out of the total reproductive records, 68.5% were found in wooded areas, even though this land cover class represents only 26.8% of the analyzed landscape. The proportion and the uniqueness of species at this study site show its importance to maintenance of the local diversity of birds. Our results indicate that a local bird diversity homogenization is in process and they provide subsidies for better management practices of green areas within urban centers.

Vulnerability of sweet cherry cultivars to continuous periods of spring frosts in Plovdiv, Bulgaria

2020 ◽  
Vol 12 (4) ◽  
pp. 348-352
Author(s):  
S. Malchev ◽  
S. Savchovska
Keyword(s):  
Sweet Cherry ◽  
Weather Conditions ◽  
Frost Damage ◽  
Cold Weather ◽  
Bud Burst ◽  
Intermediate Group ◽  
Air Temperatures ◽  
Wide Range ◽  
Group Form ◽  
Sweet Cherry Cultivars

Abstract. The periods with continuous freezing air temperatures reported during the spring of 2020 (13 incidents) affected a wide range of local and introduced sweet cherry cultivars in the region of Plovdiv. They vary from -0.6°C on March 02 to -4.9°C on March 16-17. The duration of influence of the lowest temperatures is 6 and 12 hours between March 16 and 17. The inspection of fruit buds and flowers was conducted twice (on March 26 and April 08) at different phenological stages after continuous waves of cold weather conditions alternated with high temperatures. During the phenological phase ‘bud burst’ (tight cluster or BBCH 55) some of the flowers in the buds did not develop further making the damage hardly detectable. The most damaged are hybrid El.28-21 (95.00%), ‘Van’ (91.89%) and ‘Bing’ (89.41%) and from the next group ‘Lapins’ (85.98%) and ‘Rosita’ (83.33%). A larger intermediate group form ‘Kossara’ (81.67%), ‘Rozalina’ (76.00%), ‘Sunburst’ (75.00%), ‘Bigarreau Burlat’ (69.11%) and ‘Kuklenska belitza’ (66.67%). Candidate-cultivar El.17-90 ‘Asparuh’ has the lowest frost damage values of 55.00% and El.17-37 ‘Tzvetina’ with damage of 50.60%.

scholarly journals As paisagens coexistenciais interespecíficas, ou sobre humanos e não-humanos compartilhando espaços domésticos numa cidade amazônica

ILUMINURAS ◽  
2016 ◽  
Vol 17 (42) ◽  
Author(s):  
Flávio Leonel Abreu da Silveira
Keyword(s):  
Interspecific Interactions ◽  
Urban Wildlife ◽  
Green Spaces ◽  
Theoretical Discussion ◽  
Domestic Cats ◽  
Living Space ◽  
Green Area ◽  
Green Areas ◽  
The City

O artigo propõe uma discussão teórica acerca das paisagens coexistenciais interespecíficas na urbe, voltando-se especialmente à morada humana. Esta é percebida como o lugar da convivência entre humanos e não-humanos – também se considera o seu entorno, onde aparecem os quintais/pomares e os espaços verdes habitados pela fauna silvestre urbana. A coexistência interespecífica contribui para a diversidade na conformação das paisagens citadinas, sendo que as ambiências domésticas – a localidade do espaço habitado/lócus da experiência íntima – permitem a humanos e não-humanos o compartilhamento de uma vida juntos a partir de diferentes formas de interações simbólico-práticas. As áreas verdes revelam-se lugares de interações interespecíficas diversas na urbe, figurando enquanto espaços de contato. Para as reflexões que proponho realizar, parto de minha experiência de coabitação com gatos domésticos e de meu ofício de etnógrafo que pesquisa as relações entre humanos e não-humanos em uma área verde na cidade de Belém (PA) na Amazônia.Palavras-chave: Paisagens. Cidade. Habitat. Animais. Áreas verdes. Interespécies.The Coexistent and Interspecific Landscapes or About Humans and Nonhumans Sharing Domestics Places in an Amazonian City  AbstractThe paper proposes a theoretical discussion about the coexistent and interspecific landscapes at the urbis, regarding, specially, the human shelter. This is perceived as a place of coexistence between humans and nonhumans – its surroundings where there are yards/orchards and green spaces inhabited by urban wildlife is also considered. The interspecific coexistence contributes to the diversity in shaping cityscapes and the domestic ambiences - the location of the living space/locus of intimate experience - allow human and nonhuman sharing a life together, founded on different forms of symbolic and practical interactions. The green areas turn up in places of diverse and interspecific interactions at the urbis, constituting spaces of contact. Aiming at these reflections, I consider my own coexistence experience with domestic cats and my work as an ethnographer who studies the relationships between human and nonhumans in a green area in the city of Belém (PA) in Amazon.Key words: Landscapes. City. Habitat. Animals. Green areas. Interspecies.

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