de Carvalho Arminda Moreira, de Jesus Douglas Rodrigues, de Sousa Thais Rodrigues, Ramos Maria Lucrécia Gerosa, de Figueiredo Cícero Célio, de Oliveira Alexsandra Duarte, Marchão Robélio Leandro, Ribeiro Fabiana Piontekowski, Dantas Raíssa de Araujo, Borges Lurdineide de Araújo Barbosa
Embrapa Cerrados, BR-020, km 18, Planaltina 73310-970, DF, Brazil.
Faculty of Agronomy and Veterinary Medicine, University of Brasília, Campus Darcy Ribeiro, Brasília 70910-970, DF, Brazil.
Plants (Basel). 2023 Jun 26;12(13):2449. doi: 10.3390/plants12132449.
New agricultural practices and land-use intensification in the Cerrado biome have affected the soil carbon stocks. A major part of the native vegetation of the Brazilian Cerrado, a tropical savanna-like ecoregion, has been replaced by crops, which has caused changes in the soil carbon (C) stocks. To ensure the sustainability of this intensified agricultural production, actions have been taken to increase soil C stocks and mitigate greenhouse gas emissions. In the last two decades, new agricultural practices have been adopted in the Cerrado region, and their impact on C stocks needs to be better understood. This subject has been addressed in a systematic review of the existing data in the literature, consisting of 63 articles from the Scopus database. Our review showed that the replacement of Cerrado vegetation by crop species decreased the original soil C stocks (depth 0-30 cm) by 73%, with a peak loss of 61.14 Mg ha. However, when analyzing the 0-100 cm layer, 52.4% of the C stock data were higher under cultivated areas than in native Cerrado soils, with a peak gain of 93.6 Mg ha. The agricultural practices implemented in the Brazilian Cerrado make low-carbon agriculture in this biome possible.
塞拉多生物群落区新的农业实践和土地利用集约化已经影响了土壤碳储量。巴西塞拉多是一个热带稀树草原样生态区，其原生植被的很大一部分已被农作物取代，这导致了土壤碳（C）储量的变化。为确保这种集约化农业生产的可持续性，人们已采取行动增加土壤碳储量并减少温室气体排放。在过去二十年里，塞拉多地区采用了新的农业实践，其对碳储量的影响需要得到更好的理解。这一主题已在对文献中现有数据的系统综述中得到探讨，该综述包含来自Scopus数据库的63篇文章。我们的综述表明，用作物品种取代塞拉多植被使原始土壤碳储量（0 - 30厘米深度）减少了73%，峰值损失为61.14 Mg/公顷。然而，在分析0 - 100厘米土层时，52.4%的碳储量数据显示耕地地区高于原生塞拉多土壤，峰值增加为93.6 Mg/公顷。巴西塞拉多实施的农业实践使该生物群落区的低碳农业成为可能。
