Benefit compensation estimation of major grain producing areas from the perspective of ecology

In order to assess the production costs in major grain producing areas effectively, provide help for the change of the economic compensation method which linked to agricultural tax area in the past, from the ecological perspective, interest compensation estimation model for major grain producing areas was constructed based on the combination of the decline in the virtual water compensation, carbon absorption compensation and soil organic matter content compensation. Using the data in 2011 in Heilongjiang province, the largest grain producing provinces in China, the amount of compensation for the unit weight of rice, wheat, corn, soybean through estimate model was obtained, and then the amount of compensation into the unit area was converted. The data were described briefly, and the further research in the future was put forward.