Analyze current annual per capita income of peasant in Heilongjiang province;

The change of relative difference and absolute difference of per capita income is a relative and different reciprocal U type.

Study on the relationship between average incomes and life expenditures of rural residents by applying two-step-cluster method and canonical correlation analysis;

In order to work out the differences of the desires for the rural land system reform among the peasants with different income, a comparative study on management condition, circulation scale,stability, concentration and ownership of rural land has been conducted with average personal income as the classification index.