模拟酸雨对不同施肥条件下土壤酸化的影响

Effects of Simulated Acid Rain on Soil Acidification in Different Fertilizing Conditions

采用模拟酸雨淋洗试验 ,研究了不同施肥条件下酸雨对土壤酸化的影响。结果表明 ,虽然土壤对酸性降水的致酸作用具有一定的缓冲性能 ,但酸性降水仍能在短期内导致土壤潜在酸增加 ;施用化肥的处理不管是在酸性降水还是在非酸性降水淋洗土壤的条件下 ,土壤 p H值均会降低 ,即使是与有机肥混施 ,土壤 p

By simulated acid rain experiment, the effect of acid rain of different pH values on soil acidification in different fertilizing conditions was studied. The results indicated that the leaching of acid rain led to increasing of latent acid of soil in short time though amortizing of soil to acid precipitation. With acid rain or normal rain leaching, the chemical fertilizer could result in decrease of pH value of soil, and chemical fertilizer and organic fertilizer could do so.