我国高寒草甸碳循环研究进展

在我国，高寒草甸是广布于青藏高原的主要植被类型之一，它对青藏高原大气与地面之间的能量平衡、水气交换、生物地球化学循环有着极其重要的作用。近年随着人们对全球气候变暖问题的日益关注，高寒草甸，这个全球气候敏感生态系统的源、汇动态及其影响因素的研究，成了认识全球碳循环的关键之一。分析了草地生态系统在碳循环研究中的地位和重要性，对我国高寒草地生态系统碳循环的研究现状作了较为详尽的阐述，包括植物、凋落物和土壤三大碳库以及主要含碳温室气体通量等。

The Research Development of Alpine Mmadow Carbon Cycle in China

In China, the alpine meadow is one of the main vegetation types in the Qinghai-Tibet Plateau, which plays very important role in keeping energy balance, hydrosphere change and the biological glohosity chemical cycle between the atmosphere and ground in the Tibetan Plateau. In recent years, with paying more attention to globe climate warming up, the alpine meadow, which is the fountainhead, development of climate sensitivity biogeocenose and the research of influential factor, becomes the one of key factors to understand the carbon cycle in the whole world. The article analyzed first the meadow biogeocenose the status and the fundamentality in the carbon cycle research, and then expounded very detailed the present research situation about the alpine meadow biogeocenose carbon cycle, which includes three bigger carbon pools of the plant, the soil and the litter fall as well as the greenhouse gas flux containing carbon.