Urban forest characteristics, tree size, condition, and species diversity for trees publicly and privately owned within neighborhoods defined by age, were studied in ten cities nationwide in 1980. Grand Junction, Colorado, included in the 1980 sample, was again sampled in 2004 for a comparative analysis that also included a survey of public perception. Species diversity on public property was far below that on private property and has decreased considerable during the intervening period. In older neighborhoods, the influence of ownership had little effect on overall species diversity. Diversity in the oldest neighborhoods was higher than that found in younger neighborhoods. Trees found on private property were also in better condition and represented by higher percentages of saplings than those on public property, although this percentage has decreased significantly over time. Condition rating and neighborhood age appear to be inversely related, a trend that remained unchanged over 24 years. Size appeared to increase incrementally with age of neighborhood. More large and medium size trees were found on public property. This has remained unchanged during the sample period, due to a reduction in tree planting on public property.... to defective births and children and families played adjacent to mines and buildings constructed with low-grade mine waste (Navajo 1997). Career uranium mine workers have developed otherwise inexplicable forms of respiratory problemsanbsp;...
|Title||:||Changes in the Urban Forest in Grand Junction, Colorado, 1980--2004|
|Author||:||Heidi Marie Frei|
|Publisher||:||ProQuest - 2007|