The Cerrado is the second largest biome in Brazil and the most biodiverse tropical savannah in the world and acts as a great sequester of atmospheric carbon. The lack of studies related to the quantification of its total biomass compromises the understanding of the dynamics of CO2 in this biome. Thus, it is relevant to develop studies aiming at obtaining accurate estimates of the carbon stock in the different phytophysiognomies that make the Cerrado, to include them in appropriate forest management models. Based on the hypothesis that the amount of carbon stored can vary according to the vegetation typology and vegetation compartments, the aerial stock of dry biomass and carbon were estimated in different compartments (arboreal, herbaceous-shrub and litter). The study was developed in open Brazilian savannah and soils on the sandstone and discussed the effect of fire on this phytophysiognomy. For the arboreal compartment were adjusted mathematical models to fit the biomass equations to estimate the individual stock of the trees in this compartment. The results of the stocks were discussed considering the effect of fire on the phytophysiognomy. Based on the precision and extra distribution measures, the Schumacher-Hall (non-logarithmic) equation presented better results to estimate the individual biomass and carbon stocks of the open Brazilian savannah trees. The aboveground biomass was 12.88 Mg ha−1, corresponding to a total carbon stock of 5.91 Mg ha−1, where most of the stocks are in the herbaceous-shrub compartment (44%). The arboreal compartment accounts for the smallest part of the stocks, followed by the litter. The observed values are in the interval verified for other areas of savannah studied in Brazil. The values verified for the open Brazilian savannah in sandy soils are at the lower limit of this range, due to the nutrient-poor nature of this type of soil. The distribution of stocks in the different compartments above the ground points to the fragility of this environment to the random fire effect, common in the region. That shows the need for conservation measures for vegetation maintenance and soil protection to preserve adequate nutrient cycling in the ecosystem.

中文翻译：

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估计在沙质土壤上开发的巴西开阔大草原上的地上生物量和碳储量。

塞拉多（Cerrado）是巴西第二大生物群落，也是世界上生物多样性最多的热带稀树草原，是大气中碳的绝大部分。缺乏与其总生物量量化相关的研究，这削弱了对该生物群落中二氧化碳动态的理解。因此，有必要开展研究，以期对构成塞拉多的不同植物生理学中的碳储量进行准确估算，并将其纳入适当的森林管理模型中。基于碳存储量可能根据植被类型和植被隔间而异的假设，估算了不同隔间（树木，草本灌木和凋落物）中干燥生物量和碳的空中存量。这项研究是在裸露的巴西大草原和砂岩上的土壤中开展的，并讨论了火对这种植物地貌的影响。对于树栖区室，调整了数学模型以适合生物量方程式，以估计该区室中树木的个体存量。考虑了火对植物生理学的影响，讨论了种群的结果。基于精确度和额外的分布度量，Schumacher-Hall（非对数）方程式提供了更好的结果，可以估算开阔的巴西大草原树木的单个生物量和碳储量。地上生物量为12.88 Mg ha-1，对应于5.91 Mg ha-1的总碳储量，其中大部分储量在草丛中（44％）。树木房占存量的最小部分，其次是垃圾。在巴西研究的其他热带稀树草原地区，所测得的值在区间内得到验证。在沙质土壤中，经验证的巴西热带稀树草原的值处于该范围的下限，这是由于此类土壤的营养缺乏。地面以上不同隔间中种群的分布表明，这种环境易受该区域常见的随机射击效应的影响。这表明需要采取措施保护植被并保护土壤，以保持生态系统中足够的养分循环。由于这类土壤的养分贫乏。地面以上不同隔间中种群的分布表明，这种环境易受该区域常见的随机射击效应的影响。这表明需要采取措施保护植被并保护土壤，以保持生态系统中足够的养分循环。由于这类土壤的养分贫乏。地面以上不同隔间中种群的分布表明，这种环境易受该区域常见的随机射击效应的影响。这表明需要采取措施保护植被并保护土壤，以保持生态系统中足够的养分循环。