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作 者 ：侯爱敏,彭少麟,周国逸

期 刊 ：生态学报 2002年 22卷 9期 页码：1552~1559

关键词：马尾松；年轮；元素；酸雨；

Keywords:Pinus massoniana, tree ring, element, acid precipitation,

摘 要 ：分析了鼎湖山马尾松年轮中几种化学元素含量的历史变化 ,并探讨了区域酸雨的影响。结果表明 ,酸雨有可能导致马尾松年轮中 N、K和 Al的含量在近 3 0 a中的上升趋势 ,和 Ca、Mg和 Mn明显的下降趋势。马尾松幼年期年轮部分元素含量异常地偏高 ,可能是幼年期生理机制不完善、对元素的选择性吸收和排斥能力较低所致 ,因此 ,以马尾松幼苗为对象进行的模拟酸雨试验结果 ,在推广至成熟的马尾松林地时可能会出现较大的偏差。

Abstract:The objective of this paper is to examine the relations between acid rain and element content in the rings of a native species Pinus massoniana , which is sensitive to acid rain pollution in Dinghushan Nature Reserve (DNR), located in one of the areas with quickest industrial growth and severest acid rain pollution in China. Substantial decline of the pH of the precipitation and an even faster increase in the frequency of acid precipitation occurred in the last two decades in the area. We expect this to ...

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