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The climate benefits of high-sugar grassland may be compromised by ozone pollution

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The climate benefits of high-sugar grassland may be compromised by ozone pollution. / Hewitt, Daniel; Mills, G.; Hayes, F. et al.
In: Science of the Total Environment, Vol. 565, 15.09.2016, p. 95-104.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Hewitt, D, Mills, G, Hayes, F & Davies, WJ 2016, 'The climate benefits of high-sugar grassland may be compromised by ozone pollution', Science of the Total Environment, vol. 565, pp. 95-104. https://doi.org/10.1016/j.scitotenv.2016.04.151

APA

Hewitt, D., Mills, G., Hayes, F., & Davies, W. J. (2016). The climate benefits of high-sugar grassland may be compromised by ozone pollution. Science of the Total Environment, 565, 95-104. https://doi.org/10.1016/j.scitotenv.2016.04.151

Vancouver

Hewitt D, Mills G, Hayes F, Davies WJ. The climate benefits of high-sugar grassland may be compromised by ozone pollution. Science of the Total Environment. 2016 Sept 15;565:95-104. Epub 2016 May 6. doi: 10.1016/j.scitotenv.2016.04.151

Author

Hewitt, Daniel ; Mills, G. ; Hayes, F. et al. / The climate benefits of high-sugar grassland may be compromised by ozone pollution. In: Science of the Total Environment. 2016 ; Vol. 565. pp. 95-104.

Bibtex

@article{d5b5eeaab8f64ce182653957f879db8e,
title = "The climate benefits of high-sugar grassland may be compromised by ozone pollution",
abstract = "High sugar ryegrasses (HSG) have been developed to improve the uptake, digestion and nitrogen (N)-utilisation of grazing stock, with the potential to increase production yields and benefit climate by reducing methane (CH4) and nitrous oxide (N2O) emissions from livestock farming. In this study, the effects of tropospheric ozone pollution on the seasonal growth dynamics of HSG pasture mesocosms containing Lolium perenne cv. AberMagic and Trifolium repens cv. Crusader were investigated. Species-specific ozone (O3) dose-response relationships (seasonal means: 35, 41, 47, 51, 59 & 67 ppb) based on the Phytotoxic Ozone Dose (PODy) were constructed for above and below ground biomass, injury, N-fixation and forage quality. The dynamics of effects of ozone exposure on HSG pasture changed over the course of a season, with the strongest responses occurring in the first 4–8 weeks. Overall, strong negative responses to ozone flux were found for root biomass, root nodule mass and N-fixation rates, and ozone adversely impacted a range of forage quality parameters including total sugar content and relative and consumable food values. These results indicate that increasing ozone pollution could decrease the N-use efficiency and reduce the sugar content of managed pasture, and thereby partially detract from some of the suggested benefits of HSG.",
keywords = "Climate-smart grass, Ozone, Nodulation, Clover, Forage quality",
author = "Daniel Hewitt and G. Mills and F. Hayes and Davies, {William John}",
year = "2016",
month = sep,
day = "15",
doi = "10.1016/j.scitotenv.2016.04.151",
language = "English",
volume = "565",
pages = "95--104",
journal = "Science of the Total Environment",
issn = "0048-9697",
publisher = "Elsevier Science B.V.",

}

RIS

TY - JOUR

T1 - The climate benefits of high-sugar grassland may be compromised by ozone pollution

AU - Hewitt, Daniel

AU - Mills, G.

AU - Hayes, F.

AU - Davies, William John

PY - 2016/9/15

Y1 - 2016/9/15

N2 - High sugar ryegrasses (HSG) have been developed to improve the uptake, digestion and nitrogen (N)-utilisation of grazing stock, with the potential to increase production yields and benefit climate by reducing methane (CH4) and nitrous oxide (N2O) emissions from livestock farming. In this study, the effects of tropospheric ozone pollution on the seasonal growth dynamics of HSG pasture mesocosms containing Lolium perenne cv. AberMagic and Trifolium repens cv. Crusader were investigated. Species-specific ozone (O3) dose-response relationships (seasonal means: 35, 41, 47, 51, 59 & 67 ppb) based on the Phytotoxic Ozone Dose (PODy) were constructed for above and below ground biomass, injury, N-fixation and forage quality. The dynamics of effects of ozone exposure on HSG pasture changed over the course of a season, with the strongest responses occurring in the first 4–8 weeks. Overall, strong negative responses to ozone flux were found for root biomass, root nodule mass and N-fixation rates, and ozone adversely impacted a range of forage quality parameters including total sugar content and relative and consumable food values. These results indicate that increasing ozone pollution could decrease the N-use efficiency and reduce the sugar content of managed pasture, and thereby partially detract from some of the suggested benefits of HSG.

AB - High sugar ryegrasses (HSG) have been developed to improve the uptake, digestion and nitrogen (N)-utilisation of grazing stock, with the potential to increase production yields and benefit climate by reducing methane (CH4) and nitrous oxide (N2O) emissions from livestock farming. In this study, the effects of tropospheric ozone pollution on the seasonal growth dynamics of HSG pasture mesocosms containing Lolium perenne cv. AberMagic and Trifolium repens cv. Crusader were investigated. Species-specific ozone (O3) dose-response relationships (seasonal means: 35, 41, 47, 51, 59 & 67 ppb) based on the Phytotoxic Ozone Dose (PODy) were constructed for above and below ground biomass, injury, N-fixation and forage quality. The dynamics of effects of ozone exposure on HSG pasture changed over the course of a season, with the strongest responses occurring in the first 4–8 weeks. Overall, strong negative responses to ozone flux were found for root biomass, root nodule mass and N-fixation rates, and ozone adversely impacted a range of forage quality parameters including total sugar content and relative and consumable food values. These results indicate that increasing ozone pollution could decrease the N-use efficiency and reduce the sugar content of managed pasture, and thereby partially detract from some of the suggested benefits of HSG.

KW - Climate-smart grass

KW - Ozone

KW - Nodulation

KW - Clover

KW - Forage quality

U2 - 10.1016/j.scitotenv.2016.04.151

DO - 10.1016/j.scitotenv.2016.04.151

M3 - Journal article

VL - 565

SP - 95

EP - 104

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

ER -