DOI: 10.1111/gcb.14786
论文题名: Characteristics of free air carbon dioxide enrichment of a northern temperate mature forest
作者: Hart K.M. ; Curioni G. ; Blaen P. ; Harper N.J. ; Miles P. ; Lewin K.F. ; Nagy J. ; Bannister E.J. ; Cai X.M. ; Thomas R.M. ; Krause S. ; Tausz M. ; MacKenzie A.R.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2020
卷: 26, 期: 2 语种: 英语
英文关键词: deciduous
; elevated carbon dioxide
; FACE
; oak
; performance
; Quercus robur
; United Kingdom
; Woodland
Scopus关键词: ambient air
; carbon dioxide
; deciduous forest
; enrichment
; performance assessment
; stand dynamics
; temperate forest
; wind velocity
; woodland
; United Kingdom
; Quercus robur
英文摘要: 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. © 2019 The Authors. Global Change Biology published by John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159854
Appears in Collections: 气候变化与战略
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作者单位: Birmingham Institute of Forest Research (BIFoR), University of Birmingham, Birmingham, United Kingdom; School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, United Kingdom; Yorkshire Water, Bradford, United Kingdom; Brookhaven National Laboratory, Upton, NY, United States; Department of Agriculture, Science and the Environment, School of Medical, Health and Applied Sciences, Central Queensland University, Rockhampton, QLD, Australia
Recommended Citation:
Hart K.M.,Curioni G.,Blaen P.,et al. Characteristics of free air carbon dioxide enrichment of a northern temperate mature forest[J]. Global Change Biology,2020-01-01,26(2)