--- attributes: ~ caption: 'Top panel shows the impact of the alteration of the carbon cycle alone on radiative forcing. The bottom panel shows the impacts of the alteration of carbon, nitrogen, and sulfur cycles on radiative forcing. SO2 and NH3 increase aerosols and decrease radiative forcing. NH3 is likely to increase plant biomass, and consequently decrease forcing. NOx is likely to increase the formation of tropospheric ozone (O3) and increase radiative forcing. Ozone has a negative effect on plant growth/biomass, which might increase radiative forcing. CO2 and NH3 act synergistically to increase plant growth, and therefore decrease radiative forcing. SO2 is likely to reduce plant growth, perhaps through the leaching of soil nutrients, and consequently increase radiative forcing. NOx is likely to reduce plant growth directly and through the leaching of soil nutrients, therefore increasing radiative forcing. However, it could act as a fertilizer that would have the opposite effect.' chapter: description: ~ display_name: 'Chapter 15: Biogeochemical Cycles' doi: 10.7930/J0X63JT0 identifier: biogeochemical-cycles number: 15 report_identifier: nca3 sort_key: 150 title: Biogeochemical Cycles url: http://nca2014.globalchange.gov/report/sectors/biogeochemical-cycles chapter_identifier: biogeochemical-cycles cited_by: [] contributors: - display_name: 'Scientist : James Galloway (University of Virginia) ' href: http://52.38.26.42:8080/contributor/2532.yaml id: 2532 organization: country_code: US display_name: University of Virginia identifier: university-virginia name: University of Virginia organization_type_identifier: academic type: organization url: http://www.virginia.edu organization_uri: /organization/university-virginia person: display_name: James Galloway first_name: James id: 829 last_name: Galloway middle_name: ~ orcid: 0000-0001-7676-8698 type: person url: http://www.evsc.virginia.edu/2008/11/galloway-james-n/ person_id: 829 person_uri: /person/829 role_type_identifier: scientist uri: /contributor/2532 create_dt: 2014-03-20T12:07:10 description: 'Top panel shows the impact of the alteration of the carbon cycle alone on radiative forcing. The bottom panel shows the impacts of the alteration of carbon, nitrogen, and sulfur cycles on radiative forcing. SO2 and NH3 increase aerosols and decrease radiative forcing. NH3 is likely to increase plant biomass, and consequently decrease forcing. NOx is likely to increase the formation of tropospheric ozone (O3) and increase radiative forcing. Ozone has a negative effect on plant growth/biomass, which might increase radiative forcing. CO2 and NH3 act synergistically to increase plant growth, and therefore decrease radiative forcing. SO2 is likely to reduce plant growth, perhaps through the leaching of soil nutrients, and consequently increase radiative forcing. NOx is likely to reduce plant growth directly and through the leaching of soil nutrients, therefore increasing radiative forcing. However, it could act as a fertilizer that would have the opposite effect.' display_name: '15.4: Many Factors Combine to Affect Biogeochemical Cycles' files: - display_name: BGC_human_activities_v6.png file: f3/7f/96924172907c0babaa3578d6076e/BGC_human_activities_v6.png href: http://data.globalchange.gov/assets/f3/7f/96924172907c0babaa3578d6076e/BGC_human_activities_v6.png identifier: 8fce51f3-65c9-4fef-a903-d6ce746312c8 landing_page: ~ location: ~ mime_type: image/png sha1: 3e0b9d69d9bb62c0645532622199fbe84e0139ae size: 1109130 thumbnail: f3/7f/96924172907c0babaa3578d6076e/.thumb-8fce51f3-65c9-4fef-a903-d6ce746312c8.png thumbnail_href: http://data.globalchange.gov/assets/f3/7f/96924172907c0babaa3578d6076e/.thumb-8fce51f3-65c9-4fef-a903-d6ce746312c8.png type: file uri: /file/8fce51f3-65c9-4fef-a903-d6ce746312c8 url: http://data.globalchange.gov/assets/f3/7f/96924172907c0babaa3578d6076e/BGC_human_activities_v6.png href: http://52.38.26.42:8080/report/nca3/chapter/biogeochemical-cycles/figure/many-factors-combine-to-affect-biogeochemical-cycles.yaml identifier: many-factors-combine-to-affect-biogeochemical-cycles images: - attributes: ~ create_dt: 2014-03-20T12:07:10 description: ~ identifier: a1030f32-8780-4fc0-b7bd-713f4306e8ae lat_max: ~ lat_min: ~ lon_max: ~ lon_min: ~ position: ~ submission_dt: ~ time_end: ~ time_start: ~ title: Many Factors Combine to Affect Biogeochemical Cycles url: ~ usage_limits: ~ kindred_figures: [] lat_max: ~ lat_min: ~ lon_max: ~ lon_min: ~ ordinal: 4 parents: [] references: [] report: display_name: 'Climate Change Impacts in the United States: The Third National Climate Assessment' report_identifier: nca3 source_citation: ~ submission_dt: ~ time_end: ~ time_start: ~ title: Many Factors Combine to Affect Biogeochemical Cycles type: figure uri: /report/nca3/chapter/biogeochemical-cycles/figure/many-factors-combine-to-affect-biogeochemical-cycles url: http://nca2014.globalchange.gov/highlights/report-findings/ecosystems-and-biodiversity/graphics/many-factors-combine-affect usage_limits: Free to use with credit to the original figure source.