生态系统碳氮磷元素的生态化学计量学特征
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国家自然科学基金面上资助项目(30670312);国家973计划(2002CB412501)资助项目


Ecological stoichiometry characteristics of ecosystem carbon, nitrogen and phosphorus elements
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    摘要:

    生态系统元素平衡是当前全球变化生态学和生物地球化学循环的研究热点和焦点。在系统介绍生态化学计量学与碳氮磷元素循环研究进展的基础上,重点从土壤C∶N∶P化学计量比的分布特征、指示作用、对碳固定的影响,以及人类活动对C∶N∶P比的影响等方面探讨了C∶N∶P比在养分限制、生物地球化学循环、森林演替与退化等领域中的应用等问题,并展望了生态系统碳氮磷平衡的元素化学计量学未来研究的发展方向。通过对生态化学计量学理论和方法的研究,可以深入认识植物-凋落物-土壤相互作用的养分调控因素,对于揭示碳氮磷元素之间的相互作用及平衡制约关系,为减缓温室效应提供新思路和理论依据,具有重要的现实意义。

    Abstract:

    Ecosystem element balance has been a main focus of global change ecology and biogeochemical cycle research. This paper first introduces progresses in ecological stoichiometry and carbon, nitrogen and phosphorus cycles. Then application of C∶N∶P stoichiometry in nutrient limitation, biogeochemical cycle, forest succession and degraded land is reviewed, especially in the fields of distribution characteristics, indication role, effect on carbon sequestration and human activity influence on soil C∶N∶P ratio. We also discuss future research directions in ecological stoichiometry. The development of ecological stoichiometry theory and research method can help us better understand nutrient controlling factors of plant-litter-soil interaction. It is more important to reveal interaction among carbon, nitrogen and phosphorus in order to provide insight and theoretial foundation for alleviation of greenhouse effects.

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王绍强,于贵瑞.生态系统碳氮磷元素的生态化学计量学特征.生态学报,2008,28(8):3937~3947

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