Forwarding pl. ---------- Forwarded message ---------- From: Dr K V Gururaja <[email protected]> Date: 12 February 2010 13:02 Subject: Fwd:[seminar] cistup : 16th Feb 2010 : "Impact of street tree canopies on pollution and microclimate in Bangalore"
Dear all, Might be interest to many of us, with best wishes gururaja >Dear all, > > Centre for infrastructure, Sustainable Transportation and Urban Planning > (CiSTUP) > INDIAN INSTITUTE OF SCIENCE > BANGALORE -560 012 > > Cordially invites you to a talk on > > Impact of street tree canopies on pollution and microclimate in Bangalore > > by > > Dr. Harini Nagendra, > DST Ramanujan Fellow and Urban Ecology > Coordinator, > Ashoka Trust for Research in Ecology and the Environment (ATREE), Bangalore > Asia Research Coordinator, > Center for the Study of Institutions, Population and Environmental Change, > Indiana University, USA > > > Date: Tuesday, 16th February 2010 > Venue: CiSTUP Conference Hall > Time: 11.00AM > Tea: 10:45AM > All are cordially invited > > Chairman, CiSTUP > > ---------------- > Abstract: Cities generate considerable levels of air pollution, largely > generated by vehicular movement. Such pollution, in addition to generating > severe health discords, also contributes significantly to global warming. > City streets face the worst of this pollution, while asphalted roads also > contribute to microclimatic changes by constituting micro-scale urban heat > islands. The city of Bangalore is no exception to such issues of > atmospheric pollution, heat islands, and consequent health and climatic > impacts. Rapidly growing in size, the vehicular traffic on the streets is > a challenge for urban managers. While Bangalore was once famous for its > tree-lined streets, in the past couple of years, the city has witnessed > large scale tree felling on roads, as a consequence of road expansion > activities as well as construction of the Metro. This research > investigates the environmental benefits of street trees in the rapidly > expanding city of Bangalore, and assesses the impact of street tree > canopies on mitigating environmental pollution and buffering microclimatic > variations in the city. > > We select ten roads distributed in various parts of the city, including > major transport corridors, and smaller, internal conduits. Within each > road, we identify a paired set of sampling locations, one in a section of > road which is lined with trees, and the second in a section of the same > road which is devoid of trees. We use two high volume air samplers, to > simultaneously record information on primary air pollutants, including > nitrates, sulphur dioxide, and suspended particulate matter at these > paired sampling locations. We also compare ambient air temperatures, noise > levels and traffic densities across paired sampling points. > > Across all ten roads, our results indicate that street trees have a high > capacity to buffer microclimatic changes in urban environments, by > reducing heat island effects, and absorbing gaseous and suspended > atmospheric pollutants. These findings indicate the critical role played > by street tree canopies in urban environments, a role often downplayed or > ignored by urban managers. > > Resume: Dr. Harini Nagendra is a DST Ramanujan Fellow and Urban Ecology > Coordinator at the Ashoka Trust for Research in Ecology and the > Environment (ATREE), Bangalore, as well as Asia Research Coordinator > at the Center for the Study of Institutions, Population, and > Environmental Change at Indiana University. She coordinates a program > of urban ecology focusing on land cover change, urban forestry and > biodiversity, and environmental change in Bangalore and Delhi. She has > also conducted extensive studies of on forest change in community and > state protected areas in Nepal and India. Dr. Nagendra holds a PhD > from the Indian Institute of Science, and was a recipient of the first > international Society in Science: Branco Weiss fellowships awarded in > 2003 from the Swiss Federal Institute of Technology, Zurich, as well > as a Young Associate of the Indian Academy of Sciences. Her research > has been published in journals including Ambio, Proceedings of the > National Academy of Sciences, and Landscape Ecology, and recognized by > awards from the Indian National Science Academy, the Global Change > System for analysis, research and Training (START), and the > Proceedings of the US National Academy of Sciences (PNAS). -- Dr K V Gururaja Research Scientist Centre for infrastructure, Sustainable Transport and Urban Planning, Indian Institute of Science, Bangalore - 560 012, INDIA. 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