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本文在综述四川酸性降水范围、发展趋势预测的基础上，根据野外调查、现场考察和有关资料，阐述了酸雨形成的多种污染源及其对农业生态系统的危害。着重分析和论证了酸沉降（含酸雨、酸雾）对农作蔬菜的影响，并对酸沉降形成的主要几种污染影响范围和造成的经济损失采用分项估算法。估算公式为：Ｓ农损＝Ｄ粮损×ｇ×Ｊ＋Ｅ蔬损×ｇ×Ｊ＋Ｆ油损×ｇ×Ｊ，式中Ｄ、Ｅ、Ｆ分别代表粮食、蔬菜、油菜受酸沉降污染危害影响面积，ｇ为每亩面积减产数量，Ｊ为单位产量价格。根据公式估算，经济损失为０５９－０６６亿元／年，取平均值≈Ｓ农损，总共为０６３亿元／年。
Based on the field investigation, field investigation and relevant data, this paper describes the various sources of acid rain and its damage to the agricultural ecosystem. The impact of acid deposition (including acid rain and acid mist) on the vegetables under cultivation is analyzed emphatically and the sub-estimation method is used to estimate the influence range and the economic loss caused by acid deposition. The formula is as follows: S = D × L × D × L × D × L + D × L × D × J × D, where D, E and F represent the area affected by acid deposition and pollution, g is the reduction of production per mu area, J is the unit price of production. According to the formula, the economic loss is 0-59-0 66 million yuan / year, taking the average ≈S agricultural loss, a total of 0 63 million yuan / year.