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Title: Carbon storage and sequestration by urban trees in the USA
Author: Nowak, David J.; Crane, Daniel E.
Source: Environmental Pollution. 116: 381-389.
Publication Series: Journal/Magazine Article (JRNL)
Description: Based on field data from 10 USA cities and national urban tree cover data, it is estimated that urban trees in the coterminous USA currently store 700 million tonnes of carbon ($14,300 million value) with a gross carbon sequestration rate of 22.8 million tC/yr ($460 rnillion/year). Carbon storage within cities ranges From 1.2 million tC in New York, NY, to 19,300 tC in Jersey City, NJ. Regions with the greatest proportion of urban land are the Northeast (8.5%) and the southeast (7.1%). Urban forests in the north central, northeast, south central and southeast regions of the USA store and sequester the most carbon, with average carbon storage per hectare greatest in southeast, north central, northeast and Pacific northwest regions, respectively. The national average urban forest carbon storage density is 25.1 tC/ha, compared with 53.5 tC/ha in forest stands. These data can be used to help assess the actual and potential role of urban forests in reducing atmospheric carbon dioxide, a dominant greenhouse gas.
Keywords: global climate change, carbon dioxide, urban forestry, carbon storage, carbon sequestration
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Nowak, David J.; Crane, Daniel E. 2002. Carbon storage and sequestration by urban trees in the USA. Environmental Pollution. 116: 381-389.
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