Measurement of electric potential difference on trees
Electrical potential differences have been continuously recorded since 1997 between electrodes inserted in sixteen selected sites of the trunk of a Turkey oak (Quercus cerris L.) and in the ground. The measured electric potential difference data have a characteristic sinusoidal daily variation. The...
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| Dokumentumtípus: | Cikk |
| Megjelent: |
2002
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| Sorozat: | Acta biologica Szegediensis
46 No. 3-4 |
| Kulcsszavak: | Természettudomány, Biológia |
| Online Access: | http://acta.bibl.u-szeged.hu/22491 |
| Tartalmi kivonat: | Electrical potential differences have been continuously recorded since 1997 between electrodes inserted in sixteen selected sites of the trunk of a Turkey oak (Quercus cerris L.) and in the ground. The measured electric potential difference data have a characteristic sinusoidal daily variation. The annual fluctuation of the mean daily amplitudes of these diurnal variations has at least two maxima per year. We found a remarkable correlation between electric potential differences (EPD), the water potential of air and sap flux density data. It means that the EPD follows the variations of the sap flow intensity. |
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| Terjedelem/Fizikai jellemzők: | 37-38 |
| ISSN: | 1588-385X |