Abstract:In order to understand the effects of future global warming on species composition of forest ecosystems in the south subtropical region, the biomass allocation patterns and nutrient accumulations of four dominant tree species, such as Schima superba, Syzygium rehderianum, Castanopsis hystrix and Pinus massoniana, were studied under simulated warming by translocating model forest from high altitude to low altitude in Dinghushan, Guangdong. The results showed that warming increases the average atmospheric temperature by (1.28±0.60)℃, and the average soil temperature by (1.04±0.30)℃. For Schima superba and P. massoniana under warming for 6 years, the height significantly increased by 83.0% and 52.1%, and basal diameter by 37.1% and 76.9%, respectively, and the stem mass ratio significantly increased, but the ratios of root mass, leaf biomass and root to shoot significantly decreased, as well as nutrient accumulations increased significantly by 100.3% and 185.7%, respectively. However, warming had no significant effect on the height, basal diameter, biomass allocation patterns, and nutrient accumulations of Syzygium rehderianum and C. hystrix. Therefore, the effects of 6-year warming on biomass allocation pattern and nutrient accumulation were different among four dominant tree species. Schima superba and P. massoniana might have strong adaptability under long-term warming due to their high biomass and nutrient accumulation. These differences might have a potential impact on community structure and function in subtropical mixed forests in China.