中文摘要：

对闽江河口湿地优势植物短叶茳芏（Cyperus malaccensis）N、P养分含量与积累量进行了1年的监测。结果表明：地上部分N、P浓度的器官分配模式为花〉叶〉茎，绿色部分大于立枯部分，冬春季节浓度〉夏秋季节;N、P积累量的器官分配为茎〉叶〉花，地下部分N、P浓度和积累量空间变化趋势一致，即0～15 cm〉15～30 cm〉30～60 cm;地上N平均浓度、N、P积累量在各个季节始终高于地下部分，但地上与地下P平均浓度的高低呈波动变化，N积累总量在秋季达到最大值（42.9 g·m^-2），P积累总量在夏季达到最大值（7.3 g·m^-2）;P浓度和积累总量极显著地低于N（P〈0.01）。从N/P比值看，N为限制短叶茳芏初级生产力的一个重要营养因子。

英文摘要：

A one-year investigation on the N and P concentration and accumulation of Cyperus malaccensis in the wetlands of Minjiang River estuary showed that the N and P concentration of C. malaccensis aboveground parts was in the order of flower 〉 leave 〉 stem, being higher in living plants than in dead standings, and in spring and winter than in autumn and summer; while the N and P accumulation was in the order of stem 〉 leave 〉 flower. The N and P concentration and accumulation of C. malaccensis below ground parts were 0-15 cm 〉 15-30 cm 〉30-60 cm. The average N concentration and the N and P accumulation of aboveground parts were higher than those of belowground parts, while the average P concentration fluctuated throughout the year. The N accumulation reached the peak （42. 9 g · m^-2） in autumn, while P accumulation had its peak （7.3 g · m^-2） in summer. The P concentration and accumulation were significantly lower than N （ P 〈 0.01 ）. From the viewpoint of N/P ratio, N was a key element limiting the primary productivity of C. malaccensis.