Functional compound material as well as preparation method and application thereof

The invention discloses a functional compound material as well as a preparation method and application thereof. The functional compound material is prepared from 10 to 20 parts of desulfurized gypsum, 5 to 15 parts of decomposed rock, 110 to 130 parts of biomass carbon, 140 to 160 parts of organic fertilizer and 70 to 80 parts of cereal crop straw material. The method is simple in technological process and high in operability, can be applied to the fields of sand protection, desertified land reclamation, ecological restoration and the like, can quickly improve the basic fertility of the sand through one-time implementation, constructs necessary soil conditions for sand crop planting and other plant growth, and finally achieves the purposes of sand fixation and fertilization. The method provided by the invention effectively fills the technical blank of difficult desertification control, poor effect and high cost at present. 一种功能型复混材料及其制备方法和应用，由脱硫石膏10-20份、风化岩5-15份、生物质碳110-130份、有机肥140-160份、禾谷类作物秸秆材料70-80份组成。本发明技