Population Structure of Vegetation in Urban Environment of Sarguja , Chhattisgarh , India (original) (raw)
Related papers
Ecology, Environment and Conservation
'New Delhi' capital of India is under immense pressure to sustain increasing population and to cope up with urbanization. It has urban forests or ridges, which aids the Delhi's healthy lifestyle by balancing ecosystem. To assess the forest health the species composition, density, basal area, IVI, diversity indices, regeneration status of tree species were evaluated. Three sites namely Kamla Nehru Ridge (KR), Central Ridge (CR) and Southern Ridge (SR) were selected. A total of 51 tree species belonging to 21 families were reported. Species richness varied for trees (20-37), saplings (5-20) and seedlings (5-11). Densities ranged between (517-1043 Individuals/ha) for trees, saplings (133-470 Individuals/ha) and seedlings (53-273 Individuals/ha) respectively. Species diversity ranged between for trees (2.3-3.3), saplings (1.4-2.2) and seedlings (1.5-2.1). Total basal area varied from 4.87 to 22.94 m 2 /ha (trees), 0.26 to 0.49 m 2 /ha (saplings) and 0.17 to 0.02 m 2 /ha (seedlings). Maximum species (20-70%) showed 'no' regeneration whereas, (30-50%) showed 'poor' regeneration and only Acacia leucocephala showed 'fair' regeneration in SR. It was observed that Prosopis juliflora was the dominant species in all three sites; it is an exotic species which hinders the understory growth. All over regeneration status of Delhi's urban forest was found 'poor', which is a matter of concern. For balance environment and for proper inflow of ecosystem services provided by urban forest to sustain healthy lifestyle in city, it is necessary to implement proper strategies for conservation and maintenance of these forests.
Differences in tree species diversity along the rural-urban gradient in Bengaluru, India
Urban Forestry & Urban Greening, 2019
Trees are invaluable and multifunctional elements of many land cover types. In urban areas trees serve particularly important ecological and environmental functions. In order to manage the multi-functionality of trees as efficiently as possible, biophysical information on the presence and distribution of species is helpful, as is general information about their provenance, utilization and services. This study examined the tree species diversity along the rural-urban gradient in the rapidly expanding megacity of Bengaluru, India, where the focus was on density and species composition. A number of 23 observation plots of 1-ha each in built-up environments were established within a 50 × 5 km transect running from the city center to the rural surroundings. Tree species diversity decreased with increasing distance to the city center due to the abundance of non-native ornamental tree species in the urban areas. The percentage of native species was about the same along the gradient (around 35% in urban, transition and rural areas). Our study offers a comprehensive description of tree species diversity along the rural-urban gradient in Bengaluru, which may bear connections, for example, to bird and insect diversity, and which may also be of interest and relevant for city planners and administrators as well as for researchers and the general public. Moreover, our study does adds to the relatively limited information available on this topic in South Asia and suggests a design that is transferable to other urban areas. In addition, we hope to raise a critical awareness that contributes to protecting and developing the unique tree cover in Bengaluru.
Environmental Science and Pollution Research, 2019
The vegetation plays important role in urban environment and associated ecology. Urban vegetation experienced various changes due to biotic and natural interference which alter the vegetation structure, function and ecology. The present study deals with the assessment of shrub species structure, diversity, biomass, volume, C storage and CO 2 mitigation potential in an urban setup. Total four sites were selected, viz., east, west, north and south directions of Ambikapur City. A sum of eight shrub species representing seven families was recorded in Ambikapur City area. The highest representatives were recorded towards east direction (seven species with six families) and lowest towards south direction (five species with five families). The total density of shrubs ranged between 230 and 570 individual ha − 1 being highest at east direction and least at south direction. The higher diversity was found at east direction. The shrub biomass was ranged between 0.999 and 2.603 t/ha being highest at north direction and lowest at east direction. The shrub volume, C storage and CO 2 mitigation values reflected similar trend as in case of shrub biomass. The shrub volume, C stock and CO 2 mitigation values were ranged from 0.141 to 0.250 m 3 /ha, 0.437 to1.132 t/ha and 1.597 to 4.156 t/ha, respectively, among the various sites. The species like Cestrum nocturnum and Nerium oleander are found to be potential in terms of various ecological services such as biomass, C storage and CO 2 mitigation in different sites. However, Lantana camara was also found to be potential species under urban setup which can be utilized for its various ecological functions. Further, it was found that the contribution of the non-native species was higher over native species in terms of stand density, basal area, biomass, C stock, volume and CO 2 mitigation potential among different study sites.
Urban Tree Diversity of Honnavara, Uttara Kannada District, Karnataka, India
International Journal of Engineering and Scientific Research, 2014
Urban trees serve many useful functions such as climate change mitigation by carbon sequestration, air quality improvement by air pollution abatement, biodiversity conservation and source of ecosystem goods to urban inhabitants. They also have aesthetic, socio-religious and recreational value in urban contexts. In spite of the importance, they have not received much scientific attention. This paper investigates the diversity and density of tree species growing both
Assessment of Urban Tree Diversity of Kadapa City, Andhra Pradesh
The International Journal of Plant, Animal and Environmental Sciences, 2016
Trees in urban ecosystem are very important as they protect the environment and maintain the ecological balance by reducing air and noise pollution. The purpose of avenue trees in urban areas is as ornamentals, shade giving, aesthetic and medicinal value. A small study has been undertaken to assess the avenue and other amenity tree species in the urban areas of Kadapa city of Andhra Pradesh, India. Totally 58 species belonging to 51 genera and 27 families are inventoried which are grown as avenue trees, ornamentals, shade plants etc. All these species are grown in different areas of the city. They are mainly grown in the road dividers, along road sides, premises of government offices and educational institutions, temple yards, house yards etc.
Assessment of tree diversity of Urban and rural area at Jaunpur district, Uttar Pradesh
Journal of Pharmacognosy and Phytochemistry, 2018
The present work aimed to study the stand parameters (Crown size, basal area, frequency, density, dominance, IVI, species diversity and richness) were calculated on the tree species diversity at urban and rural area of Jaunpur, district, U.P. A total number of 3911 trees representing 54 species of trees and 23 families of the species were identified. Species were classified into diverse classes according to their occurrence. The importance value index (IVI) for each species was determined. The Shannon diversity index values obtained in an urban area are lower than those obtained in a rural area. In the Rural area, Mangifera indica has the highest IVI with 196.15 and lowest was of Pongamia pinata with 56.81. In an urban area, high IVI was of Azadirachta indica with 176.69 and Cassia fistula was lowest IVI with 72.22.From these studies it is evident that rural area sites was having an edge cover and was highly dominant and urban area sites in terms of species diversity, dominance and ...
Tree Diversity and Tree Community Composition in Northern Part of Megacity Bengaluru, India
Sustainability
Trees are natural capital assets, especially for cities, as they provide immense environmental benefits and improve urban biodiversity and ecology. However, urbanization has largely destroyed the original native ecosystems and has caused a homogenization where frequently native species are replaced by non-native species. When attempting to understand the role of trees in urban settings, it is important to generate science-based data on the spatial distribution of trees, their species composition and tree species diversity as a function of the degree of urbanization. Such information may specifically inform the planning of effective long-term management of trees across urban and rural gradients. A total of 23 of 1 ha each were surveyed along a Northern research transect laid out along the urban–rural gradient of the metropolitan area of Bengaluru, India. Plots were randomly selected from the stratum “settlement areas”, where WorldView-3 imagery supported both stratification and plot ...
URBAN TREE DIVERSITY OF KARWAR, KARNATAKA, INDIA
International Journal of Engineering, Science and Mathematics, 2012
Urban trees serve many useful functions such as climate change mitigation by carbon sequestration, air quality improvement by air pollution abatement, biodiversity conservation and source of ecosystem goods to urban inhabitants. They also have aesthetic, socio-religious and recreational value in urban contexts. In spite of the importance, they have not received much scientific attention. This paper investigates the diversity and density of tree species growing both within the built environment as well as roadside avenues in the seaside town of Karwar which is the administrative headquarters of Uttara Kannada district of Karnataka. The total area of the town is 27.15 km 2 and population (2001 census) is 62,973.
URBAN TREE DIVERSITY OF KARWAR, KARNATAKA
Urban trees serve many useful functions such as climate change mitigation by carbon sequestration, air quality improvement by air pollution abatement, biodiversity conservation and source of ecosystem goods to urban inhabitants. They also have aesthetic, socio-religious and recreational value in urban contexts. In spite of the importance, they have not received much scientific attention. This paper investigates the diversity and density of tree species growing both within the built environment as well as roadside avenues in the seaside town of Karwar
ISVS e journal, 2023
Street trees form an essential part of a green infrastructure which contribute to the resilience of a city. Stewardship and stake holder preferences are some of the factors in the sustainability of street trees and their diversity and composition in residential areas. This study aims to understand the existing conditions and practices in the plantation of street trees in residential areas. Plotted residential layouts of areas ranging between 18-25acres with road widths less than 9mtrs., 9mtrs to 12mtrs and greater than12mtrs are taken to compare and assess for diversity, density, composition, and distribution along with the shade analysis across six zones of the city of Visakhapatnam, India. A total stem count of 1903 trees accounting to 86 species, 73 genus and 32 families are recorded across the selected neighborhoods. The diversity is rated high when evaluated against the Shannon index and the Simpson's index. It is found that the Sant amour formula of the species diversity as indicated 10/20/30 is not met with. The density of the trees per 100-meter length ranged from 9 trees to 20 trees, but the tree sizes differ, which would have varying results in the ecosystem services provided. The composition of native to exotic trees are 60-40% respectively. As the neighborhood character keeps changing with re-densification, there are frequent replacements of trees resulting in younger trees accounting for a higher share as against the old trees. The recent plantation drives also replace them with the fast growing trees. The parameters assessed gives us evidence to the approach residents of the neighborhood take in the planting patterns. The patterns that evolve in this process can indeed become indicators for evolving a framework and enable better practices of planting trees.