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Titolo:
A PORTABLE DEVICE FOR THE SIMULATION OF AIR FROSTS AT REMOTE FIELD LOCATIONS
Autore:
THORPE PC; MACGILLIVRAY CW; PRIESTMAN GH;
Indirizzi:
UNIV SHEFFIELD,NERC,COMPARAT PLANT ECOL UNIT,WESTERN BANK SHEFFIELD S10 2TN S YORKSHIRE ENGLAND
Titolo Testata:
Functional ecology
fascicolo: 4, volume: 7, anno: 1993,
pagine: 503 - 505
SICI:
0269-8463(1993)7:4<503:APDFTS>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Keywords:
CLIMATE CHANGE; COMMUNITY RESPONSE; FIELD STUDIES; VORTEX TUBES; TEMPERATURE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
NO
Recensione:
Indirizzi per estratti:
Citazione:
P.C. Thorpe et al., "A PORTABLE DEVICE FOR THE SIMULATION OF AIR FROSTS AT REMOTE FIELD LOCATIONS", Functional ecology, 7(4), 1993, pp. 503-505

Abstract

1. Natural late frosts can have important ecological and economic effects. A device is described which can simulate night-time air frosts at remote, field locations. It is composed of an insulated cloche, vortex tubes and a compressed air generator. Vortex tubes are commerciallyavailable devices that split a single compressed air stream into two,one hot and one cold. 2. In a pilot study, five replicate 2 x 2 m areas of grassland on a limestone slope in Derbyshire were subjected to a-2.8-degrees-C (range +/- 1.1-degrees-C) air frost for 3 h in early June 1992. 3. Initial subjective observations on the vegetation suggested that the effects were similar to those of natural late frosts observed in previous years. The device is currently being used in long-term, climate change studies at the Unit of Comparative Plant Ecology (UCPE).

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Documento generato il 24/11/20 alle ore 14:28:37