The control of CO2 levels is reported for a Free-Air Carbon dioxide Enrichment (FACE) facility employed in a vineyard at Rapolano, Italy in 1996 acid 1997. This control is required for evaluating the validity of a biological experiment conducted on grapevine in CO2 enriched and control experimental plots. Six rectangular emission arrays enclosing seven plants each were installed in the vineyard imposing three CO2 exposure levels (ambient, 550 and 700 pmol mol(-1)) and monitoring CO2 levels at the centre of each experimental plot. In the 2 years, average seasonal (May-September) CO2 levels during treatment hours (05:00-19:00 h) varied from 697 to 698 mu mol mol(-1) for 700 mu mol mol(-1) target treatment and from 549 to 550 for 550 mu mol mol(-1) target treatment. The averaged 1 min measurements of CO2 concentration were within 20%;, of the target concentrations for more the 80% of the time. The FACE facility also provided a good spatial control of CO2 concentration for an experimental sampling volume of 15.7 m(3) (8 m x 1.4 m x 1.4 m), including five plants per plot.

Free Air CO2 Enrichment (FACE) of grapevine (Vitis vinifera L.): I. Development and testing of the system for CO2 enrichment / M. BINDI; L. FIBBI; M. LANINI; F. MIGLIETTA. - In: EUROPEAN JOURNAL OF AGRONOMY. - ISSN 1161-0301. - STAMPA. - 14:(2001), pp. 135-143. [10.1016/S1161-0301(00)00092-7]

Free Air CO2 Enrichment (FACE) of grapevine (Vitis vinifera L.): I. Development and testing of the system for CO2 enrichment.

BINDI, MARCO;
2001

Abstract

The control of CO2 levels is reported for a Free-Air Carbon dioxide Enrichment (FACE) facility employed in a vineyard at Rapolano, Italy in 1996 acid 1997. This control is required for evaluating the validity of a biological experiment conducted on grapevine in CO2 enriched and control experimental plots. Six rectangular emission arrays enclosing seven plants each were installed in the vineyard imposing three CO2 exposure levels (ambient, 550 and 700 pmol mol(-1)) and monitoring CO2 levels at the centre of each experimental plot. In the 2 years, average seasonal (May-September) CO2 levels during treatment hours (05:00-19:00 h) varied from 697 to 698 mu mol mol(-1) for 700 mu mol mol(-1) target treatment and from 549 to 550 for 550 mu mol mol(-1) target treatment. The averaged 1 min measurements of CO2 concentration were within 20%;, of the target concentrations for more the 80% of the time. The FACE facility also provided a good spatial control of CO2 concentration for an experimental sampling volume of 15.7 m(3) (8 m x 1.4 m x 1.4 m), including five plants per plot.
2001
14
135
143
M. BINDI; L. FIBBI; M. LANINI; F. MIGLIETTA
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/201635
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