Vertosols are widely used for cotton production globally. One main advantage of this soil type is its capacity to improve its structure gradually due to natural processes over time. However, Vertosols are highly susceptible to compaction, especially under wet soil conditions. This study investigated the change in characteristics of Australian Vertosols due to the impact of rainfall, seasonal variability, and John Deere 7760 cotton picker traffic. Soil cores were collected between October 2016 and May 2017. Measurements of soil physical properties (soil water content, dry bulk density, and soil penetration resistance) were carried out in the 0–80 cm depth profile during the study period. Increasing soil water content due to rainfall caused the Vertosol to swell, providing some degree of natural compaction alleviation and decreasing the dry bulk density and soil penetration resistance. Increased temperatures from October 2016 to January 2017 resulted in increased moisture evapotranspiration. This led to shrinkage of the Vertosol and resulted in increased dry bulk density and soil penetration resistance, particularly in the top 0–30 cm of soil. Traffic from the JD7760 cotton picker induced significant compaction throughout the depth profile. These findings have important implications for farmers intending to grow crops in Vertosols and managing the issue of soil compaction.

Vertosols在全球范围内广泛用于棉花生产。这种土壤类型的一个主要优点是由于随着时间的推移自然过程而逐渐改善其结构的能力。但是，凡托溶胶对压实高度敏感，尤其是在潮湿的土壤条件下。这项研究调查了由于降雨，季节变化和John Deere 7760采棉机运输带来的影响，澳大利亚Vertosols特性的变化。在2016年10月至2017年5月之间收集了土壤核心。在研究期间，在0-80厘米深度剖面中进行了土壤物理性质（土壤水分，干容重和土壤渗透性）的测量。降雨导致土壤水分增加，导致Vertosol膨胀，提供一定程度的自然压实减轻，并降低干重密度和抗土壤渗透性。从2016年10月到2017年1月，气温升高导致水分蒸散量增加。这导致Vertosol的收缩，并导致增加的干堆积密度和抗土壤渗透性，特别是在土壤顶部0-30 cm处。来自JD7760采棉机的运输在整个深度剖面上引起了明显的压实。这些发现对打算在Vertosols中种植作物并管理土壤压实问题的农民具有重要意义。这导致Vertosol的收缩，并导致增加的干堆积密度和抗土壤渗透性，特别是在土壤顶部0-30 cm处。来自JD7760采棉机的运输在整个深度剖面上引起了明显的压实。这些发现对打算在Vertosols中种植作物并管理土壤压实问题的农民具有重要意义。这导致Vertosol的收缩，并导致增加的干堆积密度和抗土壤渗透性，特别是在土壤顶部0-30 cm处。来自JD7760采棉机的运输在整个深度剖面上引起了明显的压实。这些发现对打算在凡托索尔种植农作物并管理土壤压实问题的农民具有重要意义。