Measurements of O3, CO2 and H2O fluxes over a Scots pine stand in eastern Finland by the micrometeorological eddy covariance method.

Visa fullständig post



Permalänk

http://hdl.handle.net/1975/9223

Citation

Silva Fennica. 1996. 30(2–3): 97–108.

Titel: Measurements of O3, CO2 and H2O fluxes over a Scots pine stand in eastern Finland by the micrometeorological eddy covariance method.
Författare: Aurela, Mika; Laurila, Tuomas; Tuovinen, Juha-Pekka
Upphovmannens organisation: The Finnish Society of Forest Science
Suomen metsätieteellinen seura
Finlands Forstvetenskapliga Samfund
Utgivare: The Finnish Society of Forest Science and The Finnish Forest Research Institute
Datum: 1996
Språk: eng
ISSN: 0037-5330
Permanenta länken (URI): http://hdl.handle.net/1975/9223
Abstrakt: The eddy covariance technique is a novel micrometeorological method that enables the determination of the atmosphere-biosphere exchange rate of gases such as ozone and carbon dioxide on an ecosystem scale. This paper describes the technique and presents results from the first direct measurements of turbulent fluxes of O3, CO2 and H2O above a forest in Finland. The measurements were performed during 15 July–5 August 1994 above a Scots pine stand near the Mekrijärvi research station in Eastern Finland. The expected diurnal cycles were observed in the atmospheric fluxes of O3, CO2 and H2O. The data analysis includes interpretation of the O3 flux in terms of the dry deposition velocity and evaluation the dependency of the net CO2 flux on radiation. The eddy covariance method and the established measurement system has proved suitable for providing high-resolution data for studying ozone deposition to a forest as well as the net carbon balance and related physiological processes of an ecosystem.
Beskrivning: Part I Climate Change
Subject: otsoni
hiilidioksidi
mänty
Pinus sylvestris
pienilmasto
metsäekosysteemit
tilastomenetelmät
ozone
carbon dioxide
microclimate
statistical analysis
forest stands


Filer under denna titel

Totalt antal nerladdningar: Laddar...

Filer Storlek Format Granska
030-2-3_Aurela_etal.pdf 7.441Mb PDF Granska/Öppna

Detta dokument registreras i samling:

Visa fullständig post