红树林凋落物产生过程及其营养物质形式研究概述

Formation Process and Nutrients Form of Litter Fall of Mangrove

红树林凋落物的产生与植物本身的代谢功能,与各种气象因子如气温、湿度、风速等以及土壤理化条件,与人类和动物干扰等因素有关。红树林凋落物一般包括叶、花、果、枝四个主要部分,叶相对占有很大的比重。红树林凋落物经过淋溶、微生物和其他潮间带生物三个分解作用,以有机碎屑和可溶性物质的形式进入生态系统中,为红树林区域和邻近浅海域的海洋生物提供有机碎屑和可溶性物质和能量。

Mangrove litter fall was formed related to metabolic function,temperature,humidity,wind speed,soil physical chemical properties,human and animal interference.Leaf,flower,fruit and branch were the main part of the litter fall,while leaf accounts for the major proportion of litter fall.The litter fall is decomposed through leaching,microbe,biology of intertidal zone.The organic detritus and soluble substance was form of mangrove litter fall that enter estuarine ecosystem.Litter fall provides organic detritus,soluble substance and energy to the marine organisms in the mangrove region and adjacent sea.