厦门大学学报（自然科学版）2016，Vol.55Issue(4)：611-616,6.DOI:10.6043/j.issn.0438-0479.201509024
秋茄中龄林和成熟林凋落物量及其动态特征
Amount and Dynamic Characteristics of Litter Fall in Half-mature and Mature Forests of Kandelia obovata
摘要
Abstract
An investigation was made on the amount,composition and dynamic characteristics of litter fall in half-mature (24 years old)and mature (48 years old)forests of Kandelia obovata in Jiulong River Estuary from May 2010 to April 2011.The results showed that there were significant differences in litter biomass between different stand ages,which were 13.02 and 10.08 t/hm2 in half-mature and mature forests,respectively.In different plant components,the leaf litter had the largest annual litter fall amount, which was half-mature forest (65.74%)> mature forest (54.17%).Meanwhile,annual branch litter amount also showed that half-mature forest (26.04%)> mature forest (20.43%).However,the mature forest had larger annual flower litter amount(11.31%) and annual fruit litter amount(14.09%)than the half-mature forest (5.84%,2.38%).The litter fall amount of the half-mature for-est was higher than that of the mature forest,affected by a variety of growth factors,such as stand density,growth stage,self-thinning,etc.The data above suggest that litter fall of K.obovata form a huge storage of nutrient,which plays an important role in maintaining biotic resources of mangroves and raising productive forces of estuarine ecosystems.关键词
凋落物/秋茄/林龄/季节变化/九龙江口Key words
litter fall/Kandelia obovata/stand age/seasonal variation/Jiulong River Estuary分类
农业科技引用本文复制引用
金亮,卢昌义..秋茄中龄林和成熟林凋落物量及其动态特征[J].厦门大学学报（自然科学版）,2016,55(4):611-616,6.基金项目
国家自然科学基金(41176092,41376115) （41176092,41376115）
漳州市自然科学基金(ZZ2014J07) （ZZ2014J07）
