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各种营养元素在木麻黄林分中的存留量从幼林阶段起不断增加,成熟阶段达到最大,至过熟阶段又趋下降。凋落物和降水淋溶的养分归还量随林龄增大而持续提高。养分吸收量的变化趋势与存留量相似。随着木麻黄林龄的增长,养分归还量占吸收量的比例不断提高,养分存留量的比率不断下降。
The storage of various nutrient elements in the Casuarina equisetifolia stands increased from young forest stage, reaching the maximum in mature stage and declining again in overripe stage. Litter and rainfall leaching nutrient return increases with increasing age. Nutrient absorption trends and retention. With the growth of Casuarina equisetifolia, the ratio of nutrient return to absorption increased and the ratio of nutrient retention decreased.