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通过模拟酸雨对峨眉山土壤中活性铝的溶出试验，考察了铝离子溶出量及Ｃａ／Ａｌ比值，并研究其与冷杉生长的关系．研究结果表明：峨眉山土壤中铝离子活化严重，Ｃａ／Ａｌ比值远远小于１，铝中毒是峨眉山酸沉降危害冷杉的重要原因之一．
Through the simulated acid rain on the Emeishan soil active aluminum dissolution test aluminum exudation and Ca / Al ratio was investigated and its relationship with the growth of fir. The results show that the Al-ion in the soil of Mt.Emei is activated seriously, the ratio of Ca / Al is far less than 1, and the aluminum poisoning is one of the important reasons that the acid damage of Emei Mountain endangers the fir.