Abstract: Based on the 1954-2009 daily meteorological data of Tiantong region,and using Zhou Guangsheng’s net primary productivity (NPP) model, this paper studied the recent 60 years climate change pattern and its effects on the NPP of evergreen broad-leaved forest in the region. In recent 60 years, the monthly average values of air temperature, precipitation, and reference evaportranspiration (ET₀) in the region had an obvious increase in July and August, and the annual mean air temperature, precipitation, and ET₀ increased significantly (P<0.0001). The NPP of the evergreen broad-leaved forest in 56 years was averagely 12.196 t·hm^-2·a^-1, and increased significantly in recent 60 years (P<0.0001). In the future, if the air temperature increased by 2 ℃ and the precipitation increased by 20%, the NPP of the evergreen broad-leaved forest in the region would be increased by 15.9%; if the air temperature increased by 2 ℃2.1 and the precipitation decreased by 20%, the NPP would be decreased by 4.9%; and, if the air temperature increased by 2 ℃ and the precipitation was unchanged, the NPP would be increased by 5.5%. Annual average precipitation, ET₀, and air temperature were the main meteorological factors affecting the NPP of evergreen broad-leaved forest in the region.

Key words: Kingdonia uninflora, Modular biomass, Populations, Growth and development