红树林具有很高的凋落物生产量,其生产量受到纬度、潮汐、海水盐度以及气象参数等多方面因素的影响,并且表现出明显的季节性变化规律。红树林凋落物有4条主要归宿:一部分被底栖动物摄食,主要是蟹类和腹足类;一部分被微生物直接分解;还有一部分以可溶性有机物或是以植物组织的形式输出到毗邻生态系统;余下的则以难分解的或是合成物质的形式进入到红树林底质。国内关于红树林凋落物的研究很多只从定性的角度揭示红树林凋落物的归宿,而缺少定量的实验研究,因而对凋落物各归宿的相对重要性缺乏正确认识。以前的一些研究忽视了底栖动物的作用,未来的研究应该更加注重红树林生态系统的开放性,定量研究凋落物的归宿,关注底栖生物在红树林凋落物周转过程中的作用,本文期待为正确揭示红树林凋落物的真实归宿提供思路。 Mangrove forest has high litter production, its production is affected by many factors such as latitude, tide, sea salinity and meteorological parameters, and showed obvious seasonal variation. There are 4 main founctions of mangrove litter: one is consumed by benthic animals, mainly crabs and gastropods; one is decomposed directly by microorganisms; some is also exported as soluble organic matter or plant tissues to adjacent ecosystems ; The rest is difficult to break down or synthetic material into the mangrove sediment. Most domestic studies on mangrove litterfall reveal the fate of mangrove litter from qualitative perspectives, but lack of quantitative experimental studies, and therefore lack of a correct understanding of the relative importance of litterfalls. Some previous studies neglected the role of zoobenthos. Future research should pay more attention to the openness of mangrove ecosystems, quantitatively study the fate of litter, and pay attention to the role of benthic organisms in the turnover of mangrove litter. To provide a clear idea of ​​the true fate of mangrove litter.