摘要:生态系统碳循环是生态系统过程的重要组成部分，对碳循环关键过程机理的研究有助于更好地理解生态系统过程。目前，气候变化（全球变暖、降水时空格局变化）对草地生态系统过程产生了重要的影响。综述了气候变化（温度和降水变化）对草地生态系统碳循环关键过程（植物生产力、植物物候、植物根系周转、生态系统呼吸和生态系统净碳交换）的影响，在此基础上指出了目前气候变化（温度和降水变化）控制试验研究的不足，并进一步提出了今后应该加强研究的方向。



Abstract:Carbon cycle is an important part of the ecosystem processes. Research on mechanisms of the key processes of carbon cycle will help us better understanding the ecosystem processes. So far, climate change (global warming, the change in spatial and temporal distribution pattern of precipitation) has an important impact on grassland ecosystem processes. This article systematically reviews the effects of climate change (global warming and precipitation change) on the key processes of grassland ecosystem carbon cycle (plant productivity, plant phenology, plant root turnover, soil and ecosystem respiration, and net ecosystem C exchange). Through the review, we pointed out the deficiencies of the manipulative experiment and proposed that some researches should be strengthened in the future.





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