Antioxidants in Norway spruce needles at field plots in the vicinity of a thermal power plant in Slovenia : 3rd EUROSILVA Workshop, Obergurgl, Austria, September, 10-14, 1998

1999

S. 175-182

1 Abb., 4 Lit.

Unselbständiges Werk

200086141

Tree Growth at High Altitude and High Latitude : COST - Action E6 ; EUROSILVA ; Forest Tree Physiology Research : 3rd EUROSILVA Workshop, Obergurgl, Austria, September, 10-14, 1998 ; 0419, S. 175-182
; 39(4), Spezial Issue

Results of antioxidant analyses such as vitamin C and E, water soluble thiols and Beta-carotene in Norway spruce needles at sampling sites influenced by the Thermal Power Plant in Sostanj, Slovenia are presented. These antioxidants were analysed in current and one year old needles sampled in September 1997 at ten permanent sampling sites. The antioxidant response of Norway spruce needles is compared to the air pollution load, assessed by total sulphur content of needles, and general environmental stress factors connected with the sampling site. From the results obtained it is possible to draw logical conclusions about the physiological role and behaviour of the biochemical needle stress indicators analysed and to explain their status as a result of the air pollution load and environmental stresses.