湿地植物残体分解及其影响因素研究进展

Decomposition of wetland plant residue and its influencing factors: A review

湿地植物残体分解在湿地生态系统物质循环过程中起着重要作用,其过程受到多种生物因素和非生物因素的共同影响。本文综述了近些年关于湿地植物残体分解过程及影响湿地植物残体分解的生物因素和非生物因素的研究进展,并就水位对湿地植物残体分解产生的影响进行了重点阐述。水位变化是水位波动明显的湖泊湿地的关键环境过程,水文节律对植物残体分解起着不可忽视的作用,使得湿地植物残体的分解更为复杂。就植物残体的光分解过程、关键影响因子贡献量化以及关键环境因子对植物残体影响的直接和间接作用等方面提出建议和展望。

The decomposition of plant residue plays a pivotal role in material cycling in wetland ecosystems,which is regulated by a range of biotic and abiotic factors. Here,we reviewed the recent researches on the decomposition of wetland plant residue and the biotic and abiotic factors influencing the processes,especially related studies on the effects of water level. The effects of water level on wetland plant residue decomposition cannot be neglected,as it is one of the key natural driving factors in wetland ecosystems with substantial fluctuation of water level. Furthermore,suggestions and research prospect concerning photodegradation of plant residues,quantification of the contribution of key factors as well as direct and indirect influences of these factors on residue decomposition are proposed.