摘要
植物是湿地生态系统的重要组成部分之一,在养分循环过程中起着重要的作用。植物通过自身的生长代谢吸收湿地中的营养元素,但植物对营养物质的吸收能力随植物种类、群落组成及季节不同而存在差异;不同植物以及植物的不同器官对营养元素的累积特征存在显著差异,并随生长节律表现出明显的季节动态;植物本身的化学组成和特征制约着枯落物的分解和矿化过程,从而影响植物的养分归还。本文从植物对湿地营养元素吸收、累积以及养分归还方面总结了植物在湿地养分循环中的作用,指出目前研究中存在的不足,并对今后的研究提出一些建议。
As a component of wetland ecosystem, plant plays an important role in nutrient cycling. Plant via its growth and metabolism absorbs nutrients from wetland, with the nutrient absorption capacity and accumulation characteristics varied with plant species, community composition and organs, and showing seasonal changes with growth rhythm. The chemical composition of plant itself restricts the litter decomposition and mineralization, and as a result, affects the plant nutrient return. This paper summarized the research advances on the roles of plant in nutrient cycling in wetland from the aspects of nutrient absorption, accumulation and return. The current research deficiencies were discussed, and some suggestions for further study were put forward.
出处
《生态学杂志》
CAS
CSCD
北大核心
2007年第10期1628-1633,共6页
Chinese Journal of Ecology
基金
中国科学院知识创新工程项目(KZCX3-SW-NA-01)
国家自然科学基金资助项目(40501030)
关键词
湿地生态系统
养分循环
吸收
累积
归还
wetland ecosystem
nutrient cycling
absorption
accumulation
return.
