کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4426058 1309119 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The impact of ambient ozone on mountain spruce forests in the Czech Republic as indicated by malondialdehyde
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
The impact of ambient ozone on mountain spruce forests in the Czech Republic as indicated by malondialdehyde
چکیده انگلیسی

Malondialdehyde (MDA), a product of lipid peroxidation and biomarker of oxidative stress, is measured over the long term in spruce Picea abies needles under real conditions in three Czech mountain border areas. The trends presented collate the MDA content in spruce needles with ambient ozone, temperature and precipitation as casual, and defoliation as a subsequent factor for the period 1994–2006. We have found the overall decreasing trends in MDA and defoliation. The highest MDA and defoliation are recorded in the Jizerske, the lowest in the Krusne hory Mts. Out of the examined variables the MDA is predicted best by mean temperature in vegetation season, median of O3 concentrations and AOT40; these three variables account for 34% of MDA1 and 36% of MDA2 variability. Our hypothesis that higher ambient O3 exposure results in higher MDA contents in P. abies needles under real conditions has not been approved.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 158, Issue 7, July 2010, Pages 2393–2401
نویسندگان
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