---
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caption: "This comprehensive map\r\ncombines four independently developed maps of biomass for Canada, Alaska, the conterminous United States, and\r\nMexico (Beaudoin et al., 2014; Blackard et al., 2008; Wilson et al., 2013; MREDD+ Alliance 2013). A common legend,\r\nmap projection, and spatial resolution of 250 m were applied to the individual maps with no attempt to harmonize the\r\nmethods used for each of the original map products. Biomass of nonforest areas is masked by including only landcover\r\nand land-use categories 1–6 from the North American Land Change Monitoring System (NALCMS 2018). Base\r\nyears of the original maps are Canada, 2001; Alaska, 2004; conterminous United States, 2000–2009; and Mexico,\r\n2007. [Figure source: Kevin McCullough, U.S. Forest Service. North American Biomass and Disturbance Mapping\r\nWorking Group, 2014.]"
chapter:
  doi: 10.7930/SOCCR2.2018.Ch9
  identifier: forests
  number: 9
  report_identifier: second-state-carbon-cycle-report-soccr2-sustained-assessment-report
  sort_key: 90
  title: Forests
  url: https://carbon2018.globalchange.gov/chapter/9/
chapter_identifier: forests
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create_dt: 2018-02-06T00:04:14
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    title: Aboveground Forest Biomass Across North America
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title: Hectares (ha) of Aboveground Forest Biomass Across North America
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