scholarly journals Wild orchids of Tyumen and challenges, related to their preservation

2021 ◽  
Vol 38 ◽  
pp. 00053
Author(s):  
Mariya Kazantseva ◽  
Sergei Artyomenko

There are 11 plant species of the Orchidaceae family in the city area of Tyumen; eight of them are protected in the Tyumen region, one species is included in the Red Book of Russia. Representatives of the family are found in the urban forest complex, roadside forest belts, on lawns and in public gardens of the central part of the city. Most species are represented locally by single specimens or small groups; three species – Epipactis helleborine, Platanthera bifolia and Neottianthe cucullata can form large complete coenopopulations. The main anthropogenous factors negatively affecting the condition of orchids in the city are: reconstruction of roads and plantations, regular mowing of grass in the habitats of plants. The protection of species requires coordinated efforts of municipal services for the improvement of urban areas and environmental organizations.

2008 ◽  
Vol 68 (2) ◽  
pp. 419-426 ◽  
Author(s):  
MCB. Toledo ◽  
DM. Moreira

The aim of this work was to observe and describe the feeding habits and available food resources of the swallow-tailed hummingbird, Eupetomena macroura. The study was carried out in a municipal park located in the city of Taubaté, in the state of São Paulo. The observations took place between December 2003 and October 2004, recording the following variables: 1) the plant species visited for feeding and territorial defense; 2) the kinds of food resources; and 3) the kinds of flight to procure and obtain food. E. macroura visited 12 plant species. For territorial defense, Mangifera indica was the most visited, whereas Malvaviscus arboreus was most visited for feeding. The foliage was the plant part that received the most frequent visits. In order to obtain nectar, the only species visited was M. arboreus; to obtain arthropods, the species most visited were Mangifera indica and Hymenaea stilbocarpa. In the dry season, the hummingbirds visited flowers, whereas in the rainy season they visited leaves to acquire food. The arthropod groups most frequently found on leafy branches were Homoptera and Psocoptera. Finally, the results of the type of flight analysis showed that flight used to capture food was more often observed than were flights to search for food. In conclusion, these observations suggest that E. macroura shows plasticity in feeding behavior, which can help it to persist in urban areas.


Author(s):  
Jessa Marie S. Caabay

Air pollution gives negative effects to humans as well as to plants which are exposed all throughout the day in these pollutants. Assessment of plants' response to air pollutants may serve as a fundamental method in terms of environmental monitoring and management. Sensitive group of plants can serve as an indicator of air quality while the tolerant ones can be sinks. TheAir Pollution Tolerance Index (APTI) of selected plant species in Puerto Princesa City, namely: Bougainvillea (Bougainvillea spectabilis), Santan (Ixoracoccinea), Fire Tree (Delonixregia), Golden Bush (Durantarepens), and Acacia tree (Samaneasaman)were evaluatedusing relative water content, ascorbic acid content, leaf extract pH, and total leaf chlorophyll content.It was found out that B. spectabiliswas the most tolerant species, followed by S. samanwhile D. regiahas an intermediate index. D. repensand I. coccineaon the other hand were found to be sensitive plant species. Plants with high APTI values are the tolerant ones and are recommended to be planted in urban areas to absorb and off certain harmful gaseous pollutants while the sensitive ones have the potential to serve as bio-indicators for evaluation and monitoring.


2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Martika Dini Syaputri ◽  
Nany Suryawati

AbstractEnvironmental problems in urban areas are a problem that never stops. That every community needs a healthy life, but this seems difficult to become a reality for urban communities because the population continues to increase every year so that land conversion occurs which results in increased air and water pollution. Therefore, the central government hopes that each region or region can provide RTH 30% of the city area. The purpose of this study is to analyze the enforcement of the City Forest Regulations in Surabaya and to find out the efforts of local governments in fulfilling urban forest land in urban areas. This study uses a normative juridical method. As part of RTH, the development of urban forests in Surabaya is very much needed by the community, therefore cooperation between the government and the community is needed in the management and development of urban forests. Fulfillment of urban forest areas in Surabaya can be done by maximizing the form of urban forest that has been regulated based on the City Forest Regulation, either in the form of channels, groups or scattered.Keywords: city forest; green open space; urbanAbstrakMasalah lingkungan hidup diwilayah perkotaan merupakan masalah yang tak kunjung berakhir. Bahwa setiap masyarakat membutuhkan hidup sehat, namun hal tersebut seolah sulit menjadi kenyataan bagi masyarakat perkotaan yang disebabkan karena jumlah penduduk yang tiap tahun meningkat sehingga terjadi pengalihfungsian lahan yang berakibat pada semakin meningkatnya pencemaran udara maupun pencemaran air. Oleh karena itu, pemerintah pusat mengharapkan bagi setiap wilayah atau daerah menyediakan RTH 30% dari luasan kota. Tujuan dilakukannya penelitian ini adalah untuk menganalisa pemberlakuan Perda Hutan Kota di Surabaya serta mengetahui upaya pemerintah daerah dalam memenuhi lahan hutan kota pada wilayah perkotaan. Penelitian ini menggunakan metode yuridis normatif. Sebagai bagian dari RTH, pengembangan hutan kota di Surabaya sangat dibutuhkan oleh masyarakat oleh karenanya diperlukan kerjasama antara pemerintah dengan masyarakat dalam pengelolaan dan pengembangan hutan kota. Pemenuhan luasan hutan kota di Surabaya dapat dilakukan dengan mamaksimalkan bentuk dari hutan kota yang telah diatur berdasarkan pada Perda Hutan Kota, yakni dapat dengan bentuk jelaur, mengelompok maupun menyebar.


Author(s):  
Bertrand Nero ◽  
Nana Afranaa Kwapong ◽  
Raymond Jatta ◽  
Oluwole Fatunbi

In Africa, 80% of households in urban areas are food insecure and is coupled with a dramatically changing urban food culture towards increased consumption of sugary and fatty foods. Consequently, incidences of obesity and undernourishment in many African cities are becoming escalating. Urban and peri-urban forestry emerges as a complementary measure to contribute towards elimination of urban hunger and improved nutritional security. However, there is scanty knowledge about the composition, diversity and socioeconomic contributions of urban food trees in African cities and this hinders policy discussions integrating urban forestry into the food security discourse. This paper examines the diversity and composition of the urban forest and food trees of Accra and sheds light on perceptions of urbanites regarding food tree cultivation and availability in the city. Using a mixed methods approach, about 105 respondents in six neighbourhoods of Accra were interviewed while over 200 100-m2 plots were surveyed across five land use types. Twenty-two out of the 70 woody species in Accra are edible. The food tree abundance in the city is about half of the total number of trees enumerated. The species richness and abundance of the edible trees and all trees in the city were significantly different among land use types (p<0.0001) and neighbourhood types (p<0.0001). The diversity of food bearing tree species was much higher in the poorer neighbourhoods than in the wealthier neighbourhoods. Respondents in wealthier neighbourhoods indicated that tree and fruit tree cover of the city was generally low and showed greater interests in cultivating fruit trees and expanding urban forest cover than poorer neighbourhoods. These findings demonstrate the need for urban food policy reforms that integrate urban grown tree foods in the urban food system/culture.


Forests ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1440
Author(s):  
Beata Fornal-Pieniak ◽  
Barbara Żarska ◽  
Marcin Ollik

The purpose of the research was the recognition of edge effects regarding similarities and differences of vascular flora in undergrowth layers in the urban forest ecotones. Four types of urban forest neighborhoods were analyzed: ecotones adjacent to the manor park, the agriculture field, housing estates and the road. The plant compositions in the forest ecotones were compared with the plant compositions in the urban forest interior and the forest nature reserve. The phytosociological type of studied forests was a subcontinental oak-hornbeam one (Tilio-Carpinetum). Diagnostic plant species (e.g., characteristic) for forests from the non-diagnostic ones were identified. Forest consistent plant species dominated in the ecotone adjacent to the manor park and in the interior of urban forests too, but the best conditions for these plants were inside the forest nature reserve, where native consistent forest plants showed the highest dominance when comparing all studied areas. A higher anthropogenic pressure from the adjacent areas results in supporting the growth of inconsistent plant species in the forests, and these plants are mostly represented by plants belonging to grass and synanthropic communities. Another conclusion drawn from our research is that the protected forest, represented by a nature reserve in the city, provides better “shelter” for native forest plants than the urban forest without any protection. Ultimately, a permanent challenge is to achieve and maintain the balance between nature and the impact of anthropogenic activities on urban forests in the city. The high quality of green areas, biodiversity, including forests, implicates possibilities of sustainable development in cities. The research results will be useful for local urban planners and ecologists during their work on strategies of city development, including shaping of green infrastructure.


2021 ◽  
Vol 918 (1) ◽  
pp. 012028
Author(s):  
N Novriyanti ◽  
I Ihsan ◽  
B Irawan ◽  
C Wulan

Abstract This study aims to estimate the extent to which vegetation can encourage the presence of birds in the urban city area. Forest area, urban plantation, grove area, and residential area are The Muhammad Sabki Urban Forest location for bird and plant observed in some circular plots (r=25 m) in the morning and afternoon. Bird directly and identified using a field guide and marked plant species immediately identified using the Plantamor website. The data were analyzed using the Shannon-Wiener Index (H’), The Margalef Index (Dmg), and some using Correlative and regression analysis with IBM SPSS Statistics 28. The results obtained 23 species and a total of 534 individual birds from all observed urban space habitats. All Shannon-Wiener Index (H’) values in each studied habitat type showed a moderate diversity level and low species richness (Dmg). There are 22 plant species that have been identified as places of bird activity. Correlation analysis of the number of plant species on bird species and the number of bird species on bird individuals shows a strong relationship. However, regression analysis shows that the partially analyzed variables have no significant effect, so additional values are needed from other factors.


2018 ◽  
Vol 58 ◽  
pp. 4 ◽  
Author(s):  
Elienai Cândida e Silva ◽  
Benedito Baptista dos Santos ◽  
Walter Santos de Araújo

In this study we perform an inventory of the insect galls in savanna and forest sites of Hidrolândia, Goiás, Brazil. We found 150 insect gall morphotypes, distributed on 39 botanical families and 104 plant species. Among the insect galls, 81 gall morphotypes were recorded in the savanna site and 73 in the forest site. The plant taxa richest in insect galls were the family Fabaceae with 22 gall morphotypes, the genus Bauhinia (Fabaceae) with 15, and the species Siparuna guianensis (Siparunaceae) with seven gall morphotypes. We found gall-inducing insects belonging to orders Diptera, Coleoptera, Lepidoptera and Thysanoptera. The galling insects of family Cecidomyiidae (Diptera) were the most common inducing 48.1% of the gall morphotypes. This is the first systematic survey of insect galls realized in the city of Hidrolândia, being this the site with the higher insect gall diversity already cataloged to the Central region of Brazil.


FLORESTA ◽  
2017 ◽  
Vol 47 (4) ◽  
pp. 365
Author(s):  
Jorge Danilo Zea-Camaño ◽  
Patrícia Carneiro Souto ◽  
Antonio Lucineudo De Oliveira Freire ◽  
Jacob Silva Souto ◽  
Romualdo Medeiros Cortez Costa ◽  
...  

Partículas atmosféricas contaminantes em áreas urbanas associadas principalmente com a queima de combustíveis fosseis se depositam, em parte, na superfície das folhas das árvores. Isso promove alterações físicas nas plantas que podem ser analisadas por meio de suas respostas metabólicas. Este estudo objetivou avaliar a eficiência no acúmulo de particulados atmosféricos pela folhagem, assim como determinar a influência dos particulados nos pigmentos fotossintéticos clorofila a e b e carotenoides em árvores de Tabebuia aurea (Silva Manso) Benth. & Hook. f. ex S. Moore e Azadirachta indica A. Juss. localizadas em praças públicas na cidade de Patos-PB. Foram selecionadas árvores localizadas em dez praças públicas com alto e baixo fluxo veicular. O acúmulo de particulados atmosféricos nas folhas das árvores foi quantificado em laboratório e correlacionado com os resultados do teor dos pigmentos fotossintéticos. A determinação dos teores de clorofila a e b e carotenoides foi realizada segundo o método de Lichtenthaler e Buschmann com leitura em espectrofotômetro. Foi aplicado o teste t (p < 0,05) para comparação de médias e calculado o coeficiente de correlação de Pearson para avaliar as interações entre as variáveis. Os resultados evidenciam que a espécie T. aurea é mais eficiente do que A. indica na captura de partículas contaminantes suspensas no ar através de sua folhagem. Não foi demostrada uma tendência clara da influência do acúmulo de particulados atmosféricos na clorofila a e b e carotenoides, assim como da influência do fluxo veicular na retenção de particulados atmosféricos por ambas espécies.Palavras-chave: Poluição atmosférica, fotossíntese, arborização urbana, serviços ecossistêmicos, semiárido brasileiro.  AbstractAccumulation of atmospheric particulates and their influence on the photosynthetic pigments of two tree species in the city of Patos-PB, Brazil,..Contaminant atmospheric particles in urban areas associated with the burning of fossil fuels are deposited in part on the surface of the trees’ leaves; this promotes physical changes in the plants that can be analyzed through their metabolic responses. This study aimed to evaluate the efficiency of the accumulation of atmospheric particulates in the foliage as well as to determine the influence of the particulates in the photosynthetic pigments chlorophyll a and b and carotenoids in Tabebuia aurea (Silva Manso) Benth. & Hook. f. ex S. Moore and Azadirachta indica A. Juss. located in public squares, in the city of Patos-PB. Trees located in public places with both high and low vehicle traffic were selected. The accumulation of atmospheric particulates in the trees’ leaves was quantified in laboratory and correlated with the results of the content of the photosynthetic pigments. The determination of the levels of chlorophyll a and b and carotenoids was performed according to the method of Lichtenthaler and Buschmann with a spectrophotometer reading. The t test was used (p <0.05) to compare means and the Pearson correlation coefficient was calculated to evaluate the interactions between the variables. The results show that the T. aurea species is more efficient than A. indica at capturing contaminating particles suspended in the air through its foliage. A clear trend of the influence of the accumulation of atmospherics particulates on chlorophyll a and b and carotenoids has not been demonstrated, as well as the influence of the vehicular flow on the retention of atmospheric particulates by both species. Keywords: Air pollution, photosynthesis, urban forest, ecosystem services, Brazilian semiarid.


Author(s):  
Elena Koroleva

The purpose of the research is to study the renewal of the spatial and territorial environment of a city using the example of Barnaul. The key point of urbanized urban space is the concept of greening, since it is the most important component of the sphere of housing and communal services. The objectives of the urban greening system are to create healthy, appropriate and favorable living conditions for the urban population, so the conceptual methodology will serve to calculate greening standards and the system of criteria for selecting green spaces. The comparative analysis of expert opinions on this relevant issue and the study of the cases of other Russian cities enable the co-authors to devise a method for calculating greening standards. Measures to improve the landscaping system in cities can be developed through the analysis of the current situation in the main sub-sectors of landscaping. In the future, this will allow us to design an "efficient" and, most importantly, socially-oriented urban space.The issues of creating, preserving and improving the quality of green areas are relevant not only for the municipality, or the city of Barnaul, but also for each urban settlement of the Russian Federation. Intensified activities, abundant information, and a high pace of urban life lead to constant overstrain among city residents. In this regard, the presence of a well-groomed urban forest, landscaped parks, and ennobled river banks is of great importance. Currently, their condition is of concern to urban residents and there is a need to clean garbage, reconstruct the green zone, create reservoirs, make new alleys, restore fountains, clean the banks of urban rivers.


2021 ◽  
Vol 7 (2) ◽  
pp. 107-114
Author(s):  
Laily Dwi Arsyianti ◽  
Divary Raihan Pratama ◽  
Nadia Fauzana ◽  
Ryan Arif Basardi

Indonesia is one of countries affected by the pandemic of Covid-19. All aspects of prevention and countermeasures have been carried out by various parties around the world regarding the pandemic that has occurred from March 2020 to the present. The agricultural sector is of concern because it has an important role and is closely related to national food security, as well as the supporting sector to strengthen Indonesia economy, particularly in such condition. Agriculture also can offer a solution to avoid food crises. One of the activities is to diversify food and not rely entirely on the amount of food in the market. This activity attempts to utilized limited area available in the city, thus it becomes more productive especially during pandemic. The hydroponic and aquaponic system of agricultural cultivation technology provides an alternative to be used as an adequate source of income and can meet family food needs. This technique can be carried out by people who live both in rural and urban areas which is not required a wide space. This activity can strengthen family food security as well as become additional income or even the main income of the family.


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