作　　者： ; ;

机构地区： 厦门大学生命科学学院生物学系

出　　处： 《应用生态学报》 1993年第3期246-249,共4页

摘　　要： 研究了福建九龙江口林地红树植物秋茄落叶分解过程中K、Ca、Mg和P营养元素释放速率的季节动态。结果表明,腐解中叶片元素组成因不同营养元素损失率而变化较大。元素的损失总是快于干重损失,且损失速率为K>Mg>Ca和K>P。冬季P的损失快于Mg和Ca(P>Mg>Ca),夏季则相反(Mg>Ca>P),其余两季节差别不大。4个季节分解56天后,K、Ca、Mg、P分别损失达初始量的72—97％,51—88％,60—90％和64—79％。 Seasonal dynamics of K,Ca,Mg and P releases from decomposing Kandelia candel fallen leaves at Jiuiongjiang River estuary of Fujian province are studied. The results show that the element composition of decaying leaves is varied significantly with different loss rates of nutrient elements. Their loss rate is larger than dry matters' and in the order of K>Mg>Ca and K>P. p loss is faster than Mg and Ca in winter, but in contrast in summer, and no difference in other two seasons. The loss amount of K, Ca, Mg and P in decomposing leaves after 56 days is respectively 72—97, 51-88,60—90 and 64—79% of their initial amount.

关 键 词： 红树林 秋茄 落叶 分解 营养元素

领　　域： [生物学]