The impact of historical land use change from 1850 to 2000 on secondary particulate matter and ozone

Heald, Colette L.; Geddes, Jeffrey A.

doi:10.5194/acp-16-14997-2016

Cited by 37 publications

(41 citation statements)

References 61 publications

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“…The historical land use change has led to decreases in surface ozone concentrations up to 5-7 ppbv for the summer mean over most regions except for some areas in western Europe, North China, and central Africa where there are slight increases. These results are consistent with the recent work of Heald and Geddes (2016) that investigated the impacts of changes in land types and agricultural activities on surface air quality. The land-use-induced surface ozone changes are largely caused by a shift of forest trees with high biogenic emission factors to grasslands and croplands with low emission factors from 1860 to 2000.…”

Section: Comparisons With Climate-and Land-use-driven Surface Ozone Csupporting

confidence: 82%

“…The land-use-induced surface ozone changes are largely caused by a shift of forest trees with high biogenic emission factors to grasslands and croplands with low emission factors from 1860 to 2000. This shift in land types has also led to changes in ozone dry deposition velocity by up to 10 % due to the combined impacts of LAI changes, cropland expansion (enhancing ozone vegetation uptake), and deforestation (decreasing ozone dry deposition velocity; Heald and Geddes, 2016).…”

Section: Comparisons With Climate-and Land-use-driven Surface Ozone Cmentioning

confidence: 99%

“…As listed in Table 2, we conduct the GEOSChem simulations by using the 1986-1990 MERRA fields (for comparison with the 2006-2010 fields) or the preindustrial land use data (1860 vs. the present-day condition for 2000), generally following the previous work of Fu and Tai (2015) and Heald and Geddes (2016). The impacts of climate change on wildfire emissions (Yue et al, 2015) are not considered here.…”

Section: Asynchronous Coupling and Model Experimentsmentioning

confidence: 99%

“…The GEOS-Chem model has been applied in a number of studies to simulate atmospheric nitrogen deposition Ellis et al, 2013;Zhao et al, 2015Zhao et al, , 2017, surface ozone air quality (Zhang et al, , 2014, and recently impacts of land use changes on atmospheric composition through biosphere-atmosphere exchange processes (Fu and Tai, 2015;Fu et al, 2016;Geddes et al, 2016;Heald and Geddes, 2016). It includes a detailed simulation of tropospheric NO x -VOC-O 3 -aerosol chemistry (Park et al, 2004;Mao et al, 2010).…”

Section: The Geos-chem Chemical Transport Modelmentioning

confidence: 99%

“…A number of studies have investigated how surface air quality may respond to perturbations of these processes driven by historical land use change (Fu and Tai, 2015;Val Martin et al, 2015;Fu et al, 2016;Heald and Geddes, 2016) and climate change (Fu and Tai, 2015;Fu et al, 2016). Atmospheric nitrogen deposition, by enhancing plant growth and soil mineral nitrogen content, is thus expected to modulate the production and loss of surface ozone.…”

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confidence: 99%

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Responses of surface ozone air quality to anthropogenic nitrogen deposition in the Northern Hemisphere

et al. 2017

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Abstract. Human activities have substantially increased atmospheric deposition of reactive nitrogen to the Earth's surface, inducing unintentional effects on ecosystems with complex environmental and climate consequences. One consequence remaining unexplored is how surface air quality might respond to the enhanced nitrogen deposition through surface-atmosphere exchange. Here we combine a chemical transport model (GEOS-Chem) and a global land model (Community Land Model, CLM) to address this issue with a focus on ozone pollution in the Northern Hemisphere. We consider three processes that are important for surface ozone and can be perturbed by the addition of atmospheric deposited nitrogen -namely, emissions of biogenic volatile organic compounds (VOCs), ozone dry deposition, and soil nitrogen oxide (NO x ) emissions. We find that present-day anthropogenic nitrogen deposition (65 Tg N a −1 to the land), through enhancing plant growth (represented as increases in vegetation leaf area index, LAI, in the model), could increase surface ozone from increased biogenic VOC emissions (e.g., a 6.6 Tg increase in isoprene emission), but it could also decrease ozone due to higher ozone dry deposition velocities (up to 0.02-0.04 cm s −1 increases). Meanwhile, deposited anthropogenic nitrogen to soil enhances soil NO x emissions. The overall effect on summer mean surface ozone concentrations shows general increases over the globe (up to 1.5-2.3 ppbv over the western US and South Asia), except for some regions with high anthropogenic NO x emissions (0.5-1.0 ppbv decreases over the eastern US, western Europe, and North China). We compare the surface ozone changes with those driven by the past 20-year climate and historical land use changes. We find that the impacts from anthropogenic nitrogen deposition can be comparable to the climate-and land-use-driven surface ozone changes at regional scales and partly offset the surface ozone reductions due to land use changes reported in previous studies. Our study emphasizes the complexity of biosphere-atmosphere interactions, which can have important implications for future air quality prediction.

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Section: Comparisons With Climate-and Land-use-driven Surface Ozone Csupporting

confidence: 82%

Section: Comparisons With Climate-and Land-use-driven Surface Ozone Cmentioning

confidence: 99%

Section: Asynchronous Coupling and Model Experimentsmentioning

confidence: 99%

Section: The Geos-chem Chemical Transport Modelmentioning

confidence: 99%

mentioning

confidence: 99%

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Responses of surface ozone air quality to anthropogenic nitrogen deposition in the Northern Hemisphere

et al. 2017

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Investigating Dry Deposition of Ozone to Vegetation

Silva

Heald

2018

JGR Atmospheres

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Atmospheric ozone loss through dry deposition to vegetation is a critically important process for both air quality and ecosystem health. The majority of atmospheric chemistry models calculate dry deposition using a resistance‐in‐series parameterization by Wesely (1989), which is dependent on many environmental variables and lookup table values. The uncertainties contained within this parameterization have not been fully explored, ultimately challenging our ability to understand global scale biosphere‐atmosphere interactions. In this work, we evaluate the GEOS‐Chem model simulation of ozone dry deposition using a globally distributed suite of observations. We find that simulated daytime deposition velocities generally reproduce the magnitude of observations to within a factor of 1.4. When correctly accounting for differences in land class between the observations and model, these biases improve, most substantially over the grasses and shrubs land class. These biases do not impact the global ozone burden substantially; however, they do lead to local absolute changes of up to 4 ppbv and relative changes of 15% in summer surface concentrations. We use MERRA meteorology from 1979 to 2008 to assess that the interannual variability in simulated annual mean ozone dry deposition due to model input meteorology is small (generally less than 5% over vegetated surfaces). Sensitivity experiments indicate that the simulation is most sensitive to the stomatal and ground surface resistances, as well as leaf area index. To improve ozone dry deposition models, more measurements are necessary over rainforests and various crop types, alongside constraints on individual depositional pathways and other in‐canopy ozone loss processes.

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Land-Use Change Scenarios

Ahmadpour

Shahraki

2019

Encyclopedia of the UN Sustainable Development Goals

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The impact of historical land use change from 1850 to 2000 on secondary particulate matter and ozone

Cited by 37 publications

References 61 publications

Responses of surface ozone air quality to anthropogenic nitrogen deposition in the Northern Hemisphere

Responses of surface ozone air quality to anthropogenic nitrogen deposition in the Northern Hemisphere

Investigating Dry Deposition of Ozone to Vegetation

Land-Use Change Scenarios

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