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基于植物响应、土壤稳定性、铝浓度、碱度和ｐＨ标准，应用简单质量平衡法计算柳州红壤各种土种的酸沉降临界负荷．结果表明：沙质红泥土、红沙土、潮沙土、中度侵蚀红壤和潮沙泥土的酸沉降临界负荷较低，棕泥土和红壤土较大；为保护柳州９５％的土壤不受酸沉降危害，柳州土壤的潜在酸度和酸度临界负荷分别为１．８和１．９ｋｅｑ·ｈｍ－２·ａ－１，硫和氮临界负荷分别为０．７０和１．５ｋｅｑ·ｈｍ－２·ａ－１；地表水的酸度临界负荷为０．８０ｋｅｑ·ｈｍ－２·ａ－１．
Based on the plant response, soil stability, aluminum concentration, alkalinity and pH, a simple mass balance method was used to calculate the critical load of acid deposition for various soil types in Liuzhou red soil. The results showed that the critical load of acid deposition on sandy red mud, red sand soil, tidal sandy soil, medium erosive red soil and tidal sandy soil was lower, while the brown soil and red soil were larger. To protect 95% of the soil in Liuzhou from the acid deposition hazard , The critical acidity and acidity critical loads of soil in Liuzhou were 1.8 and 1.9 keq · hm-2 · a-1 respectively, and the critical loads of sulfur and nitrogen were 0.70 and 1.5 keq · hm-2 · a-1 The critical acidity of surface water is 0.80keq · hm-2 · a-1.