Abstract:Chinese fir and five exotic pines species Pinus elliottii Engelm., P. teada L., P. caribaea Morelet, P. rigida Mill., P. tropicatis Morelet were used in mixture expedment. The propordon of all mixed experimental plantadons, except the control plot (pure Chinese fir plantadon), was 66% Chinese fir plus 34% pines. The planting density 2 500trees / hm2, all the secdlings used were 1 -ycar-old planted in spring, in 1983. These mixed planta.ons were invesdgated 9 yean later for their producdvity, inradiance energy-use rate and nutrienttuse efficiency and nutdent retum rate in the nutrient cycling. The productivity and nubient-use efficiency were the highest in the 66% Chinese fir plus 34% P. teada mixed plantation, its biomass amount reached 6.55t/ hm2 . aand producing biomass 73kg/ hm2 . a from each kg nuoient. The inuliance energy-use rate and accurnulated biatenergy and nuvient retum rate greatest in the 66% Chinese fir plus 34% P. caribaea mdxed plantadon, the total arnount reached 3.97% and 17336kj /m2 . a and 4.86%, respecdvely. The result of the comprehensive evaluation showed that: the scores of four items and tewlve categored from greatest to last are in due order: 66% Chinese fir plus 34% P. rigida plantadon >66% Chinese fir plus 34% P. caridaea plantation > 66% Chinese fir plus 34% P. elliottii plantation > 66% Chinese fir plus 34% P. teada plantation (scored 71 .6%) > 66% Chinese fir plus 34% P. tropicalis plantation > pure Chinese fir plantation. The result also indicated that p. rigid a and P. earibaea are the suitabler pine species to be mixed with Chinese fir in the centnl substmpical area of China.