http://www.cnr.it/ontology/cnr/individuo/prodotto/ID61004
Energy and CO2 exchanges over vineyard using micrometeorological techniques (Articolo in rivista)
- Type
- Label
- Energy and CO2 exchanges over vineyard using micrometeorological techniques (Articolo in rivista) (literal)
- Anno
- 2007-01-01T00:00:00+01:00 (literal)
- Alternative label
Spano D., Sirca C., Marras S., Duce P., Zara P., Arca A., Snyder R.L. (2007)
Energy and CO2 exchanges over vineyard using micrometeorological techniques
in Quaderni di scienze viticole ed enologiche ...
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Spano D., Sirca C., Marras S., Duce P., Zara P., Arca A., Snyder R.L. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://www.unito.it/unitoWAR/appmanager/dipartimenti9/D106?_nfpb=true&_pageLabel=D106_il_dipartimento2&path=/BEA%20Repository/4670083 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Dipartimento di Economia e Sistemi Arborei, Università di Sassari; Istituto di Biometeorologia, Consiglio nazionale delle Ricerche; Department of Land, Air and Water Resources, University of California, davis (literal)
- Titolo
- Energy and CO2 exchanges over vineyard using micrometeorological techniques (literal)
- Abstract
- The contribution of soil and vegetation CO2 fluxes to global carbon balance in tree and vine
crop ecosystems needs investigation. In the last decade, the eddy covariance (EC) technique was
accepted as a standard for estimating carbon and water vapour exchanges by all international
flux networks. EC provides a direct measurement of energy and mass flux that uses high
frequency measurements of scalars and the vertical component of wind speed. The newer surface
renewal (SR) method, however, offers an alternative technique to measure fluxes. This paper
reports the results from flux experiments conducted during 2005 over a vineyard ecosystem
located in Tuscany (central Italy) during the fruit set and veraison phenological stages. Half-hourly
measurements of carbon dioxide (Fc) and latent heat (LE) fluxes were made using an EC
system. Estimates of Fc and LE fluxes were also obtained using the SR method. In addition, net
radiation (R n) and soil heat flux (G) density data were collected, and the energy balance closure
was good. Partitioning of available energy into sensible heat flux H and LE was related to weather
conditions and irrigation applications. The Bowen ratio values varied from 0.3 to 0.5 indicating
that the plant water status was good. Daytime F c values ranged between -5 and -8 ?mol CO2
m-2 s- 1, and the daily net C budget was positive, showing that the vineyard was a sink for C
over the period studied. (literal)
- Prodotto di
- Autore CNR
- Insieme di parole chiave
Incoming links:
- Prodotto
- Autore CNR di
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
- Insieme di parole chiave di