| 峨眉山冷杉衰亡与土壤铝活化的关系研究 |
| 摘要点击 819 全文点击 1584 投稿时间：1996-12-27 |
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| 中文关键词 酸沉降 活性铝 土壤 冷杉 峨眉山 |
| 英文关键词 acid precipitation Al soil fir forest Mt. Emei |
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| 中文摘要 |
| 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。 |
| 英文摘要 |
| With simulated acid rain, the experiment on leaching of Al in soil at Mt. Emei was done and the amount of Al leached and Ca/Al ration in soil were examined. The aim is to inquire into the relationship between active Al、Ca/Al ration and the growth of Fir Forest at Mt. Emei. The results showed that the phenomenon of Al activation at Mt. Emei is evident, especially in the decline districts of Fir Forest, the Ca/Al ration in soil is much less than 1. Thus, Al poisoning is one of the important factors which resulted in the decline of Fir Forest at Mt. Emei. |
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