Methodology and certification criteria of non-food land suitable for energy plant production in China.

Using proper methodology to determine the suitable land resource is crucial to the development of non-food energy plants production.This paper reviewed the methodology and suitability evaluation index of non-food land suitable for energy plant production in China.A method to get the resource of non-food land suitable for energy plant production was summarized by combining both soil survey statistic data and remote sensing data obtained from Geographic Information System(GIS).All data were collected and the research method and the database were further evaluated.After discussed the previous research,a more perfect suitability evaluation system of non-food land suitable for energy plant production was put forward after discussed the previous research.The system included surface slope,effective soil depth,soil texture,soil alkalization degrees,soil salinity,frost-free season,≥10 ℃ year accumulated temperature,water condition,drainage condition,land concentrated condition,ecological condition and exceeding pollution index.And the value range of each index was identified.