It is meaningful to develop technique to use these coals.Many kinds of microorganisms in soil and other environment can solubilize and depolymer the low-rank coals.

• 土壤和自然环境中许多微生物能够以低级煤为碳源和能源,将其大分子物质转化为小分子物质,可用于工业和农业领域。