The impact of historical land use change from 1850 to 2000 on secondary particulate matter and ozone
Anthropogenic land use change (LUC) since preindustrial (1850) has altered the vegetation distribution and density around the world. We use a global model (GEOS-Chem) to assess the attendant changes in surface air quality and the direct radiative forcing (DRF). We focus our analysis on secondary par...
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| Інші автори: | |
| Формат: | Стаття |
| Мова: | en_US |
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Copernicus GmbH
2017
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| Онлайн доступ: | http://hdl.handle.net/1721.1/107811 https://orcid.org/0000-0003-2894-5738 |
| _version_ | 1826213762271543296 |
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| author | Geddes, Jeffrey A. Heald, Colette L. |
| author2 | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Geddes, Jeffrey A. Heald, Colette L. |
| author_sort | Geddes, Jeffrey A. |
| collection | MIT |
| description | Anthropogenic land use change (LUC) since preindustrial (1850) has altered the vegetation distribution and density around the world. We use a global model (GEOS-Chem) to assess the attendant changes in surface air quality and the direct radiative forcing (DRF). We focus our analysis on secondary particulate matter and tropospheric ozone formation. The general trend of expansion of managed ecosystems (croplands and pasturelands) at the expense of natural ecosystems has led to an 11 % decline in global mean biogenic volatile organic compound emissions. Concomitant growth in agricultural activity has more than doubled ammonia emissions and increased emissions of nitrogen oxides from soils by more than 50 %. Conversion to croplands has also led to a widespread increase in ozone dry deposition velocity. Together these changes in biosphere–atmosphere exchange have led to a 14 % global mean increase in biogenic secondary organic aerosol (BSOA) surface concentrations, a doubling of surface aerosol nitrate concentrations, and local changes in surface ozone of up to 8.5 ppb. We assess a global mean LUC-DRF of +0.017, −0.071, and −0.01 W m−2 for BSOA, nitrate, and tropospheric ozone, respectively. We conclude that the DRF and the perturbations in surface air quality associated with LUC (and the associated changes in agricultural emissions) are substantial and should be considered alongside changes in anthropogenic emissions and climate feedbacks in chemistry–climate studies. |
| first_indexed | 2024-09-23T15:54:25Z |
| format | Article |
| id | mit-1721.1/107811 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:54:25Z |
| publishDate | 2017 |
| publisher | Copernicus GmbH |
| record_format | dspace |
| spelling | mit-1721.1/1078112022-09-29T16:59:29Z The impact of historical land use change from 1850 to 2000 on secondary particulate matter and ozone Geddes, Jeffrey A. Heald, Colette L. Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Heald, Colette L. Anthropogenic land use change (LUC) since preindustrial (1850) has altered the vegetation distribution and density around the world. We use a global model (GEOS-Chem) to assess the attendant changes in surface air quality and the direct radiative forcing (DRF). We focus our analysis on secondary particulate matter and tropospheric ozone formation. The general trend of expansion of managed ecosystems (croplands and pasturelands) at the expense of natural ecosystems has led to an 11 % decline in global mean biogenic volatile organic compound emissions. Concomitant growth in agricultural activity has more than doubled ammonia emissions and increased emissions of nitrogen oxides from soils by more than 50 %. Conversion to croplands has also led to a widespread increase in ozone dry deposition velocity. Together these changes in biosphere–atmosphere exchange have led to a 14 % global mean increase in biogenic secondary organic aerosol (BSOA) surface concentrations, a doubling of surface aerosol nitrate concentrations, and local changes in surface ozone of up to 8.5 ppb. We assess a global mean LUC-DRF of +0.017, −0.071, and −0.01 W m−2 for BSOA, nitrate, and tropospheric ozone, respectively. We conclude that the DRF and the perturbations in surface air quality associated with LUC (and the associated changes in agricultural emissions) are substantial and should be considered alongside changes in anthropogenic emissions and climate feedbacks in chemistry–climate studies. National Science Foundation (U.S.) (ATM- 0929282 and ATM-1564495) 2017-03-31T22:34:41Z 2017-03-31T22:34:41Z 2016-12 2016-11 Article http://purl.org/eprint/type/JournalArticle 1680-7324 http://hdl.handle.net/1721.1/107811 Heald, Colette L., and Jeffrey A. Geddes. “The Impact of Historical Land Use Change from 1850 to 2000 on Secondary Particulate Matter and Ozone.” Atmospheric Chemistry and Physics 16, no. 23 (December 5, 2016): 14997–15010. https://orcid.org/0000-0003-2894-5738 en_US http://dx.doi.org/10.5194/acp-16-14997-2016 Atmospheric Chemistry and Physics Creative Commons Attribution 3.0 License http://creativecommons.org/licenses/by/3.0/ application/pdf Copernicus GmbH Copernicus Publications |
| spellingShingle | Geddes, Jeffrey A. Heald, Colette L. The impact of historical land use change from 1850 to 2000 on secondary particulate matter and ozone |
| title | The impact of historical land use change from 1850 to 2000 on secondary particulate matter and ozone |
| title_full | The impact of historical land use change from 1850 to 2000 on secondary particulate matter and ozone |
| title_fullStr | The impact of historical land use change from 1850 to 2000 on secondary particulate matter and ozone |
| title_full_unstemmed | The impact of historical land use change from 1850 to 2000 on secondary particulate matter and ozone |
| title_short | The impact of historical land use change from 1850 to 2000 on secondary particulate matter and ozone |
| title_sort | impact of historical land use change from 1850 to 2000 on secondary particulate matter and ozone |
| url | http://hdl.handle.net/1721.1/107811 https://orcid.org/0000-0003-2894-5738 |
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