Abstract In an urban area, the care of large trees is problematic. When they age, branches, peaks should be trimmed. The use logging machines hampered by their size and also significantly pollutes environment, due to significant emissions harmful substances into atmosphere. addition, felling delimbing process itself not safe, its in environment poses a threat human life, integrity buildings inf...

Studies that assess the distribution of benefits provided by ecosystem services across urban areas are increasingly common. Nevertheless, current knowledge of both the supply and demand sides of ecosystem services remains limited, leaving a gap in our understanding of balance between ecosystem service supply and demand that restricts our ability to assess and manage these services. The present ...

A study was carried out in Addis Ababa, the capital city of Ethiopia. Urban forests in Addis Ababa are affected by various problems such as encroachment, illegal cuttings, low legal enforcement and improper tree selection. Consequently, the main objective of this study was to assess the challenges and problems of the city’s urban forests and to provide recommendations for different stakeholders...

Heavy metal pollutionis one of the largest problems in the Environment and human being. In industrial and urban areas trees can give better quantifications for pollutant concentrations and atmospheric deposition than non-biological samples. In order to know ability of Fraxinus excelsior­ (Ash tree) to reduce the concentrations of heavy metals and compared with the concentration of thes...

Several hurricanes struck Florida, U.S. in 2004 and 2005 causing widespread damage to urban and rural areas. We measured the impacts of five of these hurricanes on the urban forest and combined these results with four other hurricanes to present an assessment of wind resistance for southeastern United States coastal plain tree species. Urban forest loss was positively correlated with wind speed...

Urban green spaces provide ecosystem properties fundamental to the provision of ecosystem services, such as the sequestration of carbon and nutrients and serving as a reservoir for organic matter. Although, urban vegetation influences soil physico-chemical properties, it remains unknown whether ecosystem properties depend on plant species portfolios. We tested the influence of three common func...

This publication has been reviewed by: Dr. Jeff Stringer, Un. of Kentucky; Dr. George Parker, Purdue University; Dr. Burnell Fischer, IDNR Division of Forestry; Dr. John Kershaw, Un. of New Brunswick; Mr. Ron Rathfon, Purdue University Trees and shrubs often grow too large for the available space in urban areas. In the past, costly mechanical trimming was the sole method available to arborists ...

In our System we have employed a number of different vegetation visualization methods, including point-based rendering, impostors and billboard clouds. Based on these experiences we have designed an urban rendering system that can deal with thousands of trees, facilitating real-time visualization of urban recreation areas such as parks and green-belts. Based on the application different techniq...

Soil microbes play a key role in controlling ecosystem functions and providing ecosystem services. Yet, microbial communities in urban green space soils remain poorly characterized. Here we compared soil microbial communities in 41 urban parks of (i) divergent plant functional types (evergreen trees, deciduous trees and lawn) and (ii) different ages (constructed 10, ∼50 and >100 years ago). The...