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对福建惠安15年生木麻黄林生态系统进行定位观测表明，系统营养元素总贮量为对316．45kg／hm2，其中99．5％贮存于土壤层中；系统的养分年吸收量为234．62kg／hm2，年存留量为136．46kg／hm2，全年降水输入的养分量为45．47kg／hm2，径流输出12．68kg／hm2，养分年净积累32．79kg／hm2，营养元素的动态模拟显示，随林龄增长，林木层和凋落物层养分贮量增加，土壤层除氮以外的元素贮量下降；施肥能增进养分的积累，改善生态系统养分循环状况。
The observation and observation of the 15-year-old Casuarina equisetifolia ecosystem in Huian, Fujian Province showed that the total amount of nutrients in the system was 316.45kg / hm2, of which 99.5% was stored in the soil layer. The annual nutrient uptake by the system was 234.62kg / Hm2, the annual storage capacity is 136.46kg / hm2, the annual input of precipitation is 45.47kg / hm2, the runoff output is 12.68kg / hm2, and the net nutrient accumulation is 32.79kg / hm2. The dynamic simulation of nutrient elements The results showed that with the increasing of age, the nutrient storage in forest layer and litter layer increased, and the storage of elements in soil layer decreased except for nitrogen. Fertilization could increase the accumulation of nutrients and improve the ecosystem nutrient cycling.