Sentences with phrase «urban tree cover»

But new research published recently in Urban Forestry and Urban Greening finds urban tree cover — and the myriad benefits it provides — appears to be declining in the U.S..

«We would see some vibrant urban trees covered in scale insects, but we'd also see other clearly stressed and struggling urban trees covered in scale insects,» says Emily Meineke, a postdoctoral researcher at Harvard and first author of a paper on the study.

Not exact matches

Co-author Dr Rachel McInnes, Senior Climate Impacts Scientist at the Met Office, added: «This finding that the effects of different types of vegetation — green space and gardens, and tree cover — differ at both very high and very low air pollution levels is particularly relevant for public health and urban planning policies.

The study into the impact of urban greenery on asthma suggests that respiratory health can be improved by the expansion of tree cover in very polluted urban neighbourhoods.

Her team is working with a number of Puget Sound urban areas, including Olympia, Tacoma, Seattle and Bainbridge Island, to map tree cover and explore socioeconomic issues related to having greater or fewer trees in a neighborhood.

«If trees were to be established throughout their potential cover area, they would serve to filter air and water pollutants and reduce building energy use, and improve human well - being while providing habitat and resources for other species in the urban area.»

The other, smaller and more urban, sat on a forlorn stretch of dust - covered road pocked by squat houses and occasional palm trees on Phoenix's south side.

«Despite city tree benefits, California urban canopy cover per capita lowest in US.»

William Cronon in his book Changes in the Land describes the regeneration of forest cover in the US northeast as agriculture moved west and the northeast became increasingly urban and suburban with yards, parks, street trees, conservation areas and places that simply reverted to nature.

In Grand Rapids, MI, to offset the urban heat island effect, the city plans to increase its tree canopy cover to at least 37.5 % between 2011 and 2015.

Urbanization is on the rise; so is the urban heat island effect — a situation that is worsening with the decline of tree cover in U.S. metropolitan areas

When researchers with the USDA Forest Service researchers David Nowak and Eric Greenfield analyzed tree cover extent in urban areas between 2009 and 2014, they found significant drop - offs in many areas.

Overall, the researchers estimate that urban areas lost a collective total of 1 percent of their tree cover in five years.

«If trees were to be established throughout their potential cover area, they would serve to filter air and water pollutants and reduce building energy use, and improve human well - being while providing habitat and resources for other species in the urban area.»