Is methane released from the forest canopy?

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Standard

Is methane released from the forest canopy? / Mikkelsen, T.N.; Bruhn, D.; Ambus, Per Lennart; Larsen, Klaus Steenberg; Ibrom, I.; Pilegaard, K.

I: iForest, Bind 4, 2011, s. 200-204.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Mikkelsen, TN, Bruhn, D, Ambus, PL, Larsen, KS, Ibrom, I & Pilegaard, K 2011, 'Is methane released from the forest canopy?', iForest, bind 4, s. 200-204. https://doi.org/10.3832/ifor0591-004

APA

Mikkelsen, T. N., Bruhn, D., Ambus, P. L., Larsen, K. S., Ibrom, I., & Pilegaard, K. (2011). Is methane released from the forest canopy? iForest, 4, 200-204. https://doi.org/10.3832/ifor0591-004

Vancouver

Mikkelsen TN, Bruhn D, Ambus PL, Larsen KS, Ibrom I, Pilegaard K. Is methane released from the forest canopy? iForest. 2011;4:200-204. https://doi.org/10.3832/ifor0591-004

Author

Mikkelsen, T.N. ; Bruhn, D. ; Ambus, Per Lennart ; Larsen, Klaus Steenberg ; Ibrom, I. ; Pilegaard, K. / Is methane released from the forest canopy?. I: iForest. 2011 ; Bind 4. s. 200-204.

Bibtex

@article{6366aea4794e49d391154af8121d6884,
title = "Is methane released from the forest canopy?",
abstract = "Laboratory experiments show that rates of CH(4) emission from plant material depend exponentially on temperature and linearly on UV irradiance. The UV irradiance shall be spectrally weighted and shorter wavelengths results in higher CH(4) emissions. Global upscaling models for estimating aerobic CH(4), based on lab results, have be conducted with varying results, but until now field measurements based on profile and eddy covariance measurements have failed to show CH(4) emissions from forest canopies. To detect CH(4) production or consumption in the canopy of a beech stand we connected a CH(4) analyzer to a canopy air profile system that samples air below and above the canopy from seven different heights. A profile system with many vertical sample points can detect gas concentration gradients with a high sensitivity only under conditions with no or little air movements. Under these conditions we found indications of periodic CH(4) emissions in the canopy, but more data need to be analyzed before the magnitude of the canopy source of CH(4) can be established",
keywords = "AIR, beech, CANOPY, CH(4), eddy covariance, EDDY COVARIANCE MEASUREMENTS, EMISSION, EMISSIONS, experiment, FIELD, FIELD-MEASUREMENTS, forest, gradient, irradiance, lab, measurement, methane, MODEL, MODELS, NO, PLANT, PLANT-MATERIAL, production, RATES, SENSITIVITY, source, SYSTEM, temperature",
author = "T.N. Mikkelsen and D. Bruhn and Ambus, {Per Lennart} and Larsen, {Klaus Steenberg} and I. Ibrom and K. Pilegaard",
year = "2011",
doi = "10.3832/ifor0591-004",
language = "English",
volume = "4",
pages = "200--204",
journal = "IForest",
issn = "1971-7458",
publisher = "Italian Society of Silviculture and Forest Ecology - SISEF",

}

RIS

TY - JOUR

T1 - Is methane released from the forest canopy?

AU - Mikkelsen, T.N.

AU - Bruhn, D.

AU - Ambus, Per Lennart

AU - Larsen, Klaus Steenberg

AU - Ibrom, I.

AU - Pilegaard, K.

PY - 2011

Y1 - 2011

N2 - Laboratory experiments show that rates of CH(4) emission from plant material depend exponentially on temperature and linearly on UV irradiance. The UV irradiance shall be spectrally weighted and shorter wavelengths results in higher CH(4) emissions. Global upscaling models for estimating aerobic CH(4), based on lab results, have be conducted with varying results, but until now field measurements based on profile and eddy covariance measurements have failed to show CH(4) emissions from forest canopies. To detect CH(4) production or consumption in the canopy of a beech stand we connected a CH(4) analyzer to a canopy air profile system that samples air below and above the canopy from seven different heights. A profile system with many vertical sample points can detect gas concentration gradients with a high sensitivity only under conditions with no or little air movements. Under these conditions we found indications of periodic CH(4) emissions in the canopy, but more data need to be analyzed before the magnitude of the canopy source of CH(4) can be established

AB - Laboratory experiments show that rates of CH(4) emission from plant material depend exponentially on temperature and linearly on UV irradiance. The UV irradiance shall be spectrally weighted and shorter wavelengths results in higher CH(4) emissions. Global upscaling models for estimating aerobic CH(4), based on lab results, have be conducted with varying results, but until now field measurements based on profile and eddy covariance measurements have failed to show CH(4) emissions from forest canopies. To detect CH(4) production or consumption in the canopy of a beech stand we connected a CH(4) analyzer to a canopy air profile system that samples air below and above the canopy from seven different heights. A profile system with many vertical sample points can detect gas concentration gradients with a high sensitivity only under conditions with no or little air movements. Under these conditions we found indications of periodic CH(4) emissions in the canopy, but more data need to be analyzed before the magnitude of the canopy source of CH(4) can be established

KW - AIR

KW - beech

KW - CANOPY

KW - CH(4)

KW - eddy covariance

KW - EDDY COVARIANCE MEASUREMENTS

KW - EMISSION

KW - EMISSIONS

KW - experiment

KW - FIELD

KW - FIELD-MEASUREMENTS

KW - forest

KW - gradient

KW - irradiance

KW - lab

KW - measurement

KW - methane

KW - MODEL

KW - MODELS

KW - NO

KW - PLANT

KW - PLANT-MATERIAL

KW - production

KW - RATES

KW - SENSITIVITY

KW - source

KW - SYSTEM

KW - temperature

U2 - 10.3832/ifor0591-004

DO - 10.3832/ifor0591-004

M3 - Journal article

VL - 4

SP - 200

EP - 204

JO - IForest

JF - IForest

SN - 1971-7458

ER -

ID: 129023298