Cover crops in arable lands increase functional complementarity and redundancy of bacterial communities

摘要: Reducing the deleterious effects of intensive tillage and fertilization on ecosystem integrity human health is challenging for sustainable agriculture. The use cover crops has been advocated as a suitable technique this purpose, but scientific evidence to support scarce. After four years complete rotation, including wheat, maize, green pea main in ploughing system, we investigated respective combined nitrogen soil chemical biological properties using controlled experiment combining analyses, high‐throughput sequencing community level physiological profiles. Cover impeded carbon depletion induced by tillage, not only topsoil also within deeper horizons, where more specialized bacterial communities established. significant shift diversity composition, which was associated with changes features metabolic activities along entire profile. enhanced resilience increasing functional redundancy complementarity across horizons. Synthesis applications. In systems commonly used agriculture Western Europe, fosters high among bacteria thus can help achieve reducing while maintaining yields.