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对福建省平潭岛木麻黄防护林带的生物量和生产力进行了测定和研究．按“径阶标准木法”调查了乔木层、枯枝落叶层，应用“相对生长法”建立了估测木麻黄防护林带单株各器官干重的回归方程，相关系数达到极显著水平．文中还研究了林带生物量分配、结构及增长动态，并对防护林带生态系统的性质和生产能力进行评定．结果表明，木麻黄林带生物量平均为１４１．１７吨／公顷，净初级生产力为２４．３９６吨／公顷·年，其中树干生物量占自身总量的６１．８％，根占１９．０２％，枝占１１．４３％，叶占７．７４％．
The biomass and productivity of Casuarina equisetifolia in Pingtan Island of Fujian Province were measured and studied. The regression equation of estimating the dry weight of each plant in the plantation of Casuarina equisetifolia was established by using “relative growth method” according to “standard timber method of radial order”, and the correlation coefficient reached the extremely significant level. The paper also studied the biomass allocation, structure and growth dynamics of the belt, and evaluated the nature and production capacity of the shelterbelt ecological system. The results showed that the biomass of Casuarina equisetial forest averaged 141.17 tons / ha and the net primary productivity was 24.396 tons / ha · year, in which trunk biomass accounted for 61.8% of the total biomass and accounted for 19.02% Branches accounted for 11.43%, leaves accounted for 7.74%.