Characteristics of free air carbon dioxide enrichment of a northern temperate mature forest

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Characteristics of free air carbon dioxide enrichment of a northern temperate mature forest. / Hart, Kris M; Curioni, Giulio; Blaen, Phillip; Harper, Nicholas J; Miles, Peter; Lewin, Keith F; Nagy, John; Bannister, Edward J; Cai, Xiaoming M; Thomas, Rick M; Krause, Stefan; Tausz, Michael; MacKenzie, A Robert.

In: Global Change Biology, 03.08.2019.

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@article{bc5733101b6a455e824d2dcdfcac5e5b,
title = "Characteristics of free air carbon dioxide enrichment of a northern temperate mature forest",
abstract = "In 2017, the Birmingham Institute of Forest Research (BIFoR) began to conduct Free Air Carbon Dioxide Enrichment (FACE) within a mature broadleaf deciduous forest situated in the United Kingdom. BIFoR FACE employs large-scale infrastructure, in the form of lattice towers, forming 'arrays' which encircle a forest plot of ~30 m diameter. BIFoR FACE consists of three treatment arrays to elevate local CO2 concentrations (e[CO2 ]) by +150 µmol/mol. In practice, acceptable operational enrichment (ambient [CO2 ] + e[CO2 ]) is ±20% of the set point 1-min average target. There are a further three arrays that replicate the infrastructure and deliver ambient air as paired controls for the treatment arrays. For the first growing season with e[CO2 ] (April to November 2017), [CO2 ] measurements in treatment and control arrays show that the target concentration was successfully delivered, that is: +147 ± 21 µmol/mol (mean ± SD) or 98 ± 14% of set point enrichment target. e[CO2 ] treatment was accomplished for 97.7% of the scheduled operation time, with the remaining time lost due to engineering faults (0.6% of the time), CO2 supply issues (0.6%) or adverse weather conditions (1.1%). CO2 demand in the facility was driven predominantly by wind speed and the formation of the deciduous canopy. Deviations greater than 10% from the ambient baseline CO2 occurred <1% of the time in control arrays. Incidences of cross-contamination >80 µmol/mol (i.e. >53% of the treatment increment) into control arrays accounted for <0.1% of the enrichment period. The median [CO2 ] values in reconstructed three-dimensional [CO2 ] fields show enrichment somewhat lower than the target but still well above ambient. The data presented here provide confidence in the facility setup and can be used to guide future next-generation forest FACE facilities built into tall and complex forest stands.",
keywords = "Quercus robur, FACE, United Kingdom, Woodland, deciduous, elevated carbon dioxide, oak, performance",
author = "Hart, {Kris M} and Giulio Curioni and Phillip Blaen and Harper, {Nicholas J} and Peter Miles and Lewin, {Keith F} and John Nagy and Bannister, {Edward J} and Cai, {Xiaoming M} and Thomas, {Rick M} and Stefan Krause and Michael Tausz and MacKenzie, {A Robert}",
note = "{\textcopyright} 2019 The Authors. Global Change Biology published by John Wiley & Sons Ltd.",
year = "2019",
month = aug
day = "3",
doi = "10.1111/gcb.14786",
language = "English",
journal = "Global Change Biology",
issn = "1354-1013",
publisher = "Wiley",

}

RIS

TY - JOUR

T1 - Characteristics of free air carbon dioxide enrichment of a northern temperate mature forest

AU - Hart, Kris M

AU - Curioni, Giulio

AU - Blaen, Phillip

AU - Harper, Nicholas J

AU - Miles, Peter

AU - Lewin, Keith F

AU - Nagy, John

AU - Bannister, Edward J

AU - Cai, Xiaoming M

AU - Thomas, Rick M

AU - Krause, Stefan

AU - Tausz, Michael

AU - MacKenzie, A Robert

N1 - © 2019 The Authors. Global Change Biology published by John Wiley & Sons Ltd.

PY - 2019/8/3

Y1 - 2019/8/3

N2 - In 2017, the Birmingham Institute of Forest Research (BIFoR) began to conduct Free Air Carbon Dioxide Enrichment (FACE) within a mature broadleaf deciduous forest situated in the United Kingdom. BIFoR FACE employs large-scale infrastructure, in the form of lattice towers, forming 'arrays' which encircle a forest plot of ~30 m diameter. BIFoR FACE consists of three treatment arrays to elevate local CO2 concentrations (e[CO2 ]) by +150 µmol/mol. In practice, acceptable operational enrichment (ambient [CO2 ] + e[CO2 ]) is ±20% of the set point 1-min average target. There are a further three arrays that replicate the infrastructure and deliver ambient air as paired controls for the treatment arrays. For the first growing season with e[CO2 ] (April to November 2017), [CO2 ] measurements in treatment and control arrays show that the target concentration was successfully delivered, that is: +147 ± 21 µmol/mol (mean ± SD) or 98 ± 14% of set point enrichment target. e[CO2 ] treatment was accomplished for 97.7% of the scheduled operation time, with the remaining time lost due to engineering faults (0.6% of the time), CO2 supply issues (0.6%) or adverse weather conditions (1.1%). CO2 demand in the facility was driven predominantly by wind speed and the formation of the deciduous canopy. Deviations greater than 10% from the ambient baseline CO2 occurred <1% of the time in control arrays. Incidences of cross-contamination >80 µmol/mol (i.e. >53% of the treatment increment) into control arrays accounted for <0.1% of the enrichment period. The median [CO2 ] values in reconstructed three-dimensional [CO2 ] fields show enrichment somewhat lower than the target but still well above ambient. The data presented here provide confidence in the facility setup and can be used to guide future next-generation forest FACE facilities built into tall and complex forest stands.

AB - In 2017, the Birmingham Institute of Forest Research (BIFoR) began to conduct Free Air Carbon Dioxide Enrichment (FACE) within a mature broadleaf deciduous forest situated in the United Kingdom. BIFoR FACE employs large-scale infrastructure, in the form of lattice towers, forming 'arrays' which encircle a forest plot of ~30 m diameter. BIFoR FACE consists of three treatment arrays to elevate local CO2 concentrations (e[CO2 ]) by +150 µmol/mol. In practice, acceptable operational enrichment (ambient [CO2 ] + e[CO2 ]) is ±20% of the set point 1-min average target. There are a further three arrays that replicate the infrastructure and deliver ambient air as paired controls for the treatment arrays. For the first growing season with e[CO2 ] (April to November 2017), [CO2 ] measurements in treatment and control arrays show that the target concentration was successfully delivered, that is: +147 ± 21 µmol/mol (mean ± SD) or 98 ± 14% of set point enrichment target. e[CO2 ] treatment was accomplished for 97.7% of the scheduled operation time, with the remaining time lost due to engineering faults (0.6% of the time), CO2 supply issues (0.6%) or adverse weather conditions (1.1%). CO2 demand in the facility was driven predominantly by wind speed and the formation of the deciduous canopy. Deviations greater than 10% from the ambient baseline CO2 occurred <1% of the time in control arrays. Incidences of cross-contamination >80 µmol/mol (i.e. >53% of the treatment increment) into control arrays accounted for <0.1% of the enrichment period. The median [CO2 ] values in reconstructed three-dimensional [CO2 ] fields show enrichment somewhat lower than the target but still well above ambient. The data presented here provide confidence in the facility setup and can be used to guide future next-generation forest FACE facilities built into tall and complex forest stands.

KW - Quercus robur

KW - FACE

KW - United Kingdom

KW - Woodland

KW - deciduous

KW - elevated carbon dioxide

KW - oak

KW - performance

UR - http://www.scopus.com/inward/record.url?scp=85073953519&partnerID=8YFLogxK

U2 - 10.1111/gcb.14786

DO - 10.1111/gcb.14786

M3 - Article

C2 - 31376229

JO - Global Change Biology

JF - Global Change Biology

SN - 1354-1013

ER -