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The biomass and energy production of Casuarina equisetifolia plantations aged 14 were studied in Huian County, Fujian Province, Southeast of China. The standing crop biomass was 152.60 t/ha, in which the biomass of bole was 67.02 t/ha, accounting for 43.94 % of the total, while that of root was 36.83 t/ha and 24.14 %, respectively. Net primary productivity was 10.17t/(ha·a). The range of gross caloric of components was 19.29~20.23 kJ/g, with the average 19.70 kJ/g. The standing crop energy was 2 987×10 6 kJ/ha. Net energy production was 196.8 ×10 6 kJ/ha, while solar energy conversion efficiency was 0.90%.
The biomass and energy production of Casuarina equisetifolia plantations aged 14 were studied in Huian County, Fujian Province, Southeast of China. The standing crop biomass was 152.60 t / ha, in which the biomass of bole was 67.02 t / ha, accounting for 43.94% of the total, while that of root was 36.83 t / ha and 24.14%, respectively. Net primary productivity was 10.17 t / (ha · a). The range of gross caloric of components was 19.29 ~ 20.23 kJ / g, with the average 19.70 kJ / g. The standing crop energy was 2 987 × 10 6 kJ / ha. Net energy production was 196.8 × 10 6 kJ / ha, while solar energy conversion efficiency was 0.90%.