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南汇县三墩公社与大团公社毗邻,自然条件和耕作制度基本相同,以往的棉花生产水平也大致接近。1967～1976年,三墩公社平均亩产皮棉140.2斤,大团公社平均亩产皮棉139.9斤,两个公社都处于全县的中等水平。但是,近年来却发生了明显的变化,大团公社的棉花生产仍然保持在全县的中等水平上,而三墩公社则跃居全县第一名,1980～1981两年棉花平均亩产165斤,比大团公社121.5斤增35.7％。近两年的气候对棉花生产不利,但两个公社在同样受灾情况下,棉花产量为什么会出现这样大的差距?调查材料表明,这种差距主要是灾害后损失大小、轻重不同的差距。
Sandun County, Nanhui County commune and the large community adjacent to the natural conditions and farming system is basically the same, the previous level of cotton production is generally close to. From 1967 to 1976, Sandun commune average yield of 140.2 kg lint, large commune average per acre 139.9 kg lint, the two communes are in the county middle level. However, significant changes have taken place in recent years. The cotton production of the Grand Community remains at the medium level in the whole county while the Sandun commune ranks first in the county. The average cotton yield per mu between 1980 and 1981 was 165 Kg, 121.5 pounds more than the large group by 35.7%. The past two years have adversely affected the cotton production. However, the two communes suffered such a big gap in cotton production under the same disaster situation. The survey shows that the gap is mainly due to the difference in magnitude and severity of losses after the disaster.