The specific surface area of main soils in China Latosol 60-80m2gI R ea so il100-150m2g Yellow brown earth 200-300m2g-l ( Measurement method of the specific surface area 1、 Instrument method 2、 Adsorbed method: nitrogen、 glycerine etC.、The specific surface area of main soils in China Latosol 60－80m2 g -1 Red soil 100－150m2 g -1 Yellow brown earth 200－300m2 g -1 (二) Measurement method of the specific surface area 1、Instrument method 2、Adsorbed method: nitrogen 、glycerine etc