Effect of simulated acid rain on physiology, growth and foliar nutrient concentrations of sugar maple.

被引:11
|
作者
Hogan, GD [1 ]
机构
[1] Nat Resources Canada, Canadian Forestry Serv, Sault Ste Marie, ON P6A 5M7, Canada
关键词
D O I
10.1016/S0045-6535(97)10099-6
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The effect of simulated acid rain (SAR) on sugar maple (Acer saccharum L.) growth and physiology following exposure to 12 weeks of controlled SAR treatment was investigated. SAR induced visible foliar injury in treatments more acidic than pH 3.5. Growth and gas exchange parameters were not significantly altered by SAR treatment nor were foliar concentrations of K, Mg, Ca, Mn, P, Fe, or Al. Foliar levels of S were increased by treatment at pH 3.0. These results suggest that rainfalls less acidic than pH 3.5 are unlikely to cause significant direct effects to sugar maple. Crown Copyright (C) 1998 Published by Elsevier Science Ltd.
引用
收藏
页码:633 / 638
页数:6
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