草地生态系统硫循环研究进展

Progress on the Sulphur Cycle in Grassl and Ecosystem

草地生态系统硫循环是维系陆地生态系统物质循环的基本机制之一,草地生态系统硫循环机制的研究对系统分析草地植被在全球气候变化中的贡献和生态价值,以及全球硫收支平衡具有重要意义。与其他基本要素相比,草地生态系统硫循环的研究还有很多空白。主要针对草地生态系统大气硫库、植物硫库、土壤硫库的研究动态及我国硫循环的研究进展进行了概述。旨在了解草地生态系统硫循环的特征及规律,探究硫在各个贮存库之间及其内部定量迁移和转化机制,并就亟需解决的问题进行了分析,提出了该领域今后的研究方向。

Grassland ecosystem has played an important role in global sulphur cycle, which is one of the basic mechanisms of the terrestrial ecosystem material cycle. The research on grassland ecosystem sulphur cycle is meaningful to systematiclly analyze the scientific significance of grassland vegetation in global climate change and sulphur balance. This paper reviews the recent literature on grassland ecosystem sulphur cycle include the soil, the plant and the atmosphere sulphur pool and their controlling factors. It aims at grasping the characteristics and the regularity of sulphur cycle,further discussing on the transformations of sulphur between the pools and their migration and convertion laws. Additionally, some issues unsettled in grassland sulphur cycle and the related research emphases in the future are proposed.