Market valuation method,shadow engineering method,comparable analysis method and other evaluation methods were used to estimate the comprehensive benefit of Acacia crassicarpa plantation in Forestry Science and Technology Demonstrate Farm of Guangxi.Result showed that the static economic benefit of 6-year-old Acacia crassicarpa plantation was 8 467.6 yuan/hm2.Compared with former Chinese fir plantation,the ecological benefit was 52 945.7 yuan/hm2,the social benefit was 10 256.0 yuan/hm2 and the comprehensiv...