【摘要】 对世界和中国草地生态系统在陆地生态系统碳储存、碳循环及在全球气候变化中的地位和作用进行了分析,阐明了中国草地生态系统碳储量及其分布格局。同时,对影响草地生态系统碳储存的初级生产力、土壤有机碳、枯落物、放牧利用、草地开垦、火烧等因素进行了研究,提出了中国草地生态系统碳储量研究需解决的主要问题。更多还原

【Abstract】 The carbon stock,carbon circulation in grassland ecosystem and its role in global climate change were discussed. The distributing pattern of carbon stock in Chinese grassland ecosystem was analyzed.The factors affecting carbon stock in grassland ecosystem were studied,including primary productivity,organic carbon in the soil,plant litter,grassland grazing,cropland exploitation in the grassland and grassland firing.Based on above studies,main problems to be resolved in the research on carbon stock of grassland ecosystem were pointed out.更多还原