挪威云杉中臭氧与冷敏感性之间的相互作用：是导致中欧森林衰退的一个因素？

INTERACTION BETWEEN OZONE AND COLD SENSITIVITY IN NORWAY SPRUCE: A FACTOR CONTRIBUTING TO THE FOREST DECLINE IN CENTRAL EUROPE?

作者信息

Brown K A, Roberts T M, Blank L W

机构信息

CEGB, Central Electricity Research Laboratories, Kelvin Avenue, Leatherhead KT22 7SE, UK.

GSF, Neuherberg, Ingolstadter Landstrasse 1, D-8042 Oberschleissheim, Federal Republic of Germany.

出版信息

New Phytol. 1987 Jan;105(1):149-155. doi: 10.1111/j.1469-8137.1987.tb00118.x.

DOI:10.1111/j.1469-8137.1987.tb00118.x

PMID:33874026

Abstract

Three-year-old clonal saplings of Picea abies L. Karst. were fumigated for 60 d during the summer of 1985 with four different levels of O . Visible injury (in the form of severe, uniform brown necrosis and shedding of affected needles) occurred after a frost in November on the older needles of three of the clones which had received over 200 μg m of O during the summer, 47 d previously. No visible injury occurred during the fumigation period or on the current (1985) year needles. It is suggested that the results provide preliminary evidence for an enhancement of frost sensitivity by O which may be significant in the current wave of forest decline affecting high-altitude forests in central Europe.

摘要

1985年夏季，对三年生欧洲云杉无性系幼树进行了为期60天的四种不同浓度臭氧熏蒸处理。在当年11月出现霜冻后，此前夏季接受超过200微克/立方米臭氧处理的三个无性系的老针叶出现了可见伤害（表现为严重、均匀的褐色坏死以及受影响针叶脱落），时间是47天前。在熏蒸期间以及当年（1985年）的新叶上均未出现可见伤害。研究表明，这些结果为臭氧增强霜冻敏感性提供了初步证据，这在当前影响中欧高海拔森林的森林衰退浪潮中可能具有重要意义。