深圳福田两种红树林植物叶片分解研究

应用生态学报 ›› 2001, Vol. 12 ›› Issue (1): 35-38.

深圳福田两种红树林植物叶片分解研究

黄立南, 蓝崇钰, 束文圣

中山大学, 广州510275

收稿日期:1999-06-14 修回日期:1999-09-14 发布日期:2001-01-25
通讯作者: 黄立南,男,1971年出生,硕士,讲师,主要从事环境生态学研究,发表论文数篇.Tel:020-84036296,Fax:020-84113652,E-mail:Is04@zsu.edu.cn E-mail:Is04@zsu.edu.cn
基金资助:
香港Croucher基金;香港科技大学研究基金资助项目

Leaf decomposition of two species in a mangrove community in Futian of Shenzhen

HUANG Linan, LAN Chongyu, SHU Wensheng

Zhongshan University, Guangzhou 510275

Received:1999-06-14 Revised:1999-09-14 Published:2001-01-25

摘要/Abstract

摘要： 利用分解袋法研究两种红树林植物(秋茄、桐花)叶片在野外实地分解过程中的干物质和有机C、N、P变化情况.结果表明,秋茄叶片野外分解的速度要比桐花叶片快得多,初始非灰分物质干重(AFDW)损失一半所需的时间秋茄为12d,桐花35d左右.分解开始后,两种叶片的N含量均迅速上升,到达峰值后逐渐下降;而P含量则先略为下降,之后慢慢回升;叶片有机C含量则始终保持在相对较为稳定的水平上.试验的结果还表明,桐花叶片在红树林系统内沿潮汐梯度的不同滩面位置上分解时,各地点的分解速率间无显著差异.

关键词: 红树林, 叶片, 分解, 质量损失率, 高山林线交错带, 凋落物分解, 土壤动物贡献率

Abstract: Using litter bags,the authors studied the dynamics of dry weight, organic C,N, P of leaves of two species (Kandelia candel,Aegiceras corniculatum) in a mangrove community in Shenzhen during their decomposition in situ .Leaves of K.candel degraded more rapidly than those of A.corniculatum. For A.corniculatum ,it needed 35 days to lose half initial ash free dry weights (AFDW) of the leaves,while for K.candel ,only 12 days.Despite the difference in loss rate of litter bags with the two species,the dynamics of organic C,N, P of leaf detritus followed the same pattern.During decomposition,the N concentration of leaf detritus of both species rose up sharply,and then decreased gradually from the peak.The P level declined slightly,and then rose up slowly.The concentration of C remained fairly constant throughout the experiment.No significant difference in decomposition rates of the leaves of A.corniculatum was found when they degraded at different positions along tidal gradient within the mangrove ecosystem.

Key words: Mangrove, Leaves, Decomposition, alpine timberline ecotone, mass loss rate, litter decomposition, contributions of soil fauna

中图分类号:

Q948.8

黄立南, 蓝崇钰, 束文圣. 深圳福田两种红树林植物叶片分解研究[J]. 应用生态学报, 2001, 12(1): 35-38.

HUANG Linan, LAN Chongyu, SHU Wensheng . Leaf decomposition of two species in a mangrove community in Futian of Shenzhen[J]. Chinese Journal of Applied Ecology, 2001, 12(1): 35-38.

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