Tree and impervious cover change in U.S. cities
نویسندگان
چکیده
منابع مشابه
Impacts of impervious cover, water withdrawals, and climate change on river flows in the conterminous US
Rivers are essential to aquatic ecosystem and societal sustainability, but are increasingly impacted by water withdrawals, land-use change, and climate change. The relative and cumulative effects of these stressors on continental river flows are relatively unknown. In this study, we used an integrated water balance and flow routing model to evaluate the impacts of impervious cover and water wit...
متن کاملTree and impervious cover in the United States
Using aerial photograph interpretation of circa 2005 imagery, percent tree canopy and impervious surface cover in the conterminous United States are estimated at 34.2% (standard error (SE) = 0.2%) and 2.4% (SE = 0.1%), respectively. Within urban/community areas, percent tree cover (35.1%, SE = 0.4%) is similar to the national value, but percent impervious cover is significantly higher (17.5%, S...
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متن کاملTemperature and mortality in nine US cities.
BACKGROUND Extreme temperatures have been associated with increased mortality worldwide. The extent to which air pollutants may confound or modify this association remains unclear. METHODS We examined the association between mean apparent temperature and total mortality in 9 cities across the United States during the warm season (May to September) from 1999 to 2002. We applied case-crossover ...
متن کاملHuman Capital and Productivity in US Cities
In an empirical analysis, considering 236 U.S. cities in the period 1980-1990, we document a strong positive correlation between local supply of education skills and their return. In SMSA’s where the average education of workers is high the education premium is also high. This is true both considering the levels of the variables in 1980, 1990 and considering their changes. Technical progress, a...
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ژورنال
عنوان ژورنال: Urban Forestry & Urban Greening
سال: 2012
ISSN: 1618-8667
DOI: 10.1016/j.ufug.2011.11.005