【摘要】 用动态淋洗试验，研究了不同pH的模拟酸雨对红壤中铝形态和性质的影响．结果表明，酸雨淋洗引起红壤中盐基离子的淋失和土壤铝的溶出．随着酸雨溶液pH的降低，盐基淋矢量和铝溶出量增加．酸雨淋洗影响土壤铝形态的转化，使红壤中交换态铝上升，吸附态羟基铝有所下降．这说明在酸雨长期作用下，羟基铝溶解，并转化为交换态铝和引起铝的溶出，使铝进入环境，危害生态系统．更多还原

【Abstract】 The effects of simulated acid rain on the transformation of aluminum forms and the properties in red soils were investigated by dynamic leaching experiments. The results indicated that the leaching of acid rain results in leaching out of base ions and release of aluminum from red soils. The amount of base ions leached and aluminum released from the soils were increased with the decrease in pH value of the acid rain. Leaching of acid rain had influence on the transformation of aluminum forms in red soils. It caused increase in exchangeable Al and decrease in absorbed inorganic hydroxy-Al. It was concluded that thc hydroxy-Al be dissoved and transformed to exchangeable Al, so as to give rise to releasing of Al from soil and its entering the environment by the effects of acid rain over a long time.That is a serious problem.更多还原