No‐tillage (NT) agriculture represents a great advance in soil conservation in tropical and subtropical zones, occupying more than 32 million ha in Brazil in 2017. No‐tillage systems can promote earthworm populations, which can improve soil physical and chemical properties, thus enhancing the benefits of NT for soil conservation and ecosystem services. Furthermore, earthworms can be used as indicators of the quality of NT systems. Here, we summarize the studies that evaluated earthworm populations in NT systems between 1986 and 2016 in Brazil, highlighting important gaps in knowledge. The studies were highly skewed geographically, with most data from southern and south‐eastern Brazil, and had very little information from the two states with the greatest NT area (Mato Grosso and Rio Grande do Sul) which together represent 43% of Brazilʼs NT area. Abundance values ranged from 0 to 660 ind. m⁻², with a mean of 91 ± 129 ind. m⁻² (±SD), and at least 33 species were identified in NT systems. However, 73% of sites were considered to have poor and moderate soil quality based on their earthworm populations, raising concern regarding soil quality levels in Brazilian NT systems. Climate, soil and management conditions are important drivers of earthworm populations in Brazilian NT systems and future earthworm surveys in NT systems should provide ample data on these attributes, as well as on earthworm species, in order to improve their use as soil quality bioindicators.

中文翻译：

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巴西免耕农业中的:：现状和未来挑战

免耕（NT）农业代表着热带和亚热带地区土壤保护的巨大进步，2017年在巴西占地超过3200万公顷。免耕系统可促进worm种群，从而改善土壤的物理和化学特性，因此增强NT对土壤保护和生态系统服务的好处。此外，earth可以用作NT系统质量的指标。在这里，我们总结了对1986年至2016年巴西NT系统中worm种群进行评估的研究，突出了知识方面的重要差距。这些研究在地理上存在很大的偏差，大部分数据来自巴西的南部和东南部，而来自NT面积最大的两个州（马托格罗索州和南里奥格兰德州）的信息很少，这两个州合起来占巴西NT面积的43％ 。丰度值的范围是0到660 ind。米^-2，平均值为91±129 ind。m ^-2（±SD），在NT系统中至少鉴定出33种。但是，根据earth的种群数量，有73％的站点被认为土壤质量较差和中等，这引起了人们对巴西NT系统土壤质量水平的担忧。气候，土壤和管理条件是巴西NT系统中worm种群的重要驱动力，未来NT系统中的survey调查应提供有关这些属性以及worm物种的大量数据，以提高它们作为土壤质量生物指标的用途。