Eighteen related indexes from the Jiangsu statistical data in 2010 were chosen by using SPSS factor analysis. Five principal factors were presented such as the rural economics society development, basic input and output in agricultural production, benefit of plant production, additional input in agricultural production and agricultural industry structure. Based on the grey relational analysis , we set up a linear regression equation involving the five principal factors and got the quantitative relations between income of rural residents and various principal factors. From the linear regression equation, it could be seen that the factor of the rural economics society development had the greatest contribution to the peasants' income increase, other principal factors played a very limited role in increasing fanners' income, sometimes they even had a hindward effect. The results showed that it could be promoted for sustainable increasing of farmer's income in Jiangsu province only by developing rural economics, raising the rural urbanization and rural industrialization, strengthening countryside social guarantee, and developing rural public services.%选取2010年江苏省统计资料中相关的18项指标,利用SPSS软件进行因子分析,提取出农村经济社会发展、农业基本投入与产出、种植业生产效率、农业生产追加投入和农业产业结构5个主因子,并对这5个主因子与农村居民人均纯收入进行了灰色关联分析,建立了农村居民人均纯收入与5个主因子的线性回归方程,得到农民人均纯收入与各主因子的数量关系.从回归方程可以看出,农村经济社会发展因子对农村居民收入的贡献最大,其他主因子对促进农民增收的作用有限,甚至产生阻碍作用.结果表明,只有通过发展农村经济、提高农村城镇化和工业化水平、强化农村社会保障、发展农村公共服务事业等来促进江苏农民收入持续增长.
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