Straw removal requires a complex set of mechanized operations, including machines for raking, baling, and transporting the straw, which may intensify soil physical degradation in sugarcane fields. A field experiment was conducted to estimate the stress transmitted caused by a set of machines used for sugarcane straw removal and to quantify the impact of these stresses on soil physical indicators. The treatments consisted of reproducing the field traffic of individual and sequential operations used for straw removal, including raking; raking + baling; and raking + baling + transporting operations. Soil bulk density (BD), soil penetration resistance (SPR), macroporosity (MaP) and microporosity (MiP) at the depths of 2.5, 5, 15, and 30 cm were measured before and after the field operations. Contact area of the tires and stress transmitted into the soil induced by the straw removal operations were simulated by SoilFlex model and then used to assess the magnitude of the changes in soil physical indicators. Results showed that baling operation transmitted the highest stress (∼400 kPa), followed by straw raking and transporting, whose transmitted stress level exceed 300 kPa near the soil surface. The sum of sequential operations (i.e., raking + bale + transporting) showed the highest negative impact on soil physical quality. The magnitude of the changes in soil physical indicators occurred according to initial conditions of BD and transmitted stress. Our results show that operations for straw removal intensify soil compaction, which can be detrimental to sustain soil health and plant growth. Therefore, we advocate that traffic control strategies should be adopted during the straw removal operations to improve soil quality towards greater sustainability of sugarcane production in Brazil.

秸秆清除需要一套复杂的机械化操作，包括用于耙、打捆和运输秸秆的机器，这可能会加剧甘蔗田的土壤物理退化。进行了一项田间试验，以估计由一组用于去除甘蔗秸秆的机器引起的应力传递，并量化这些应力对土壤物理指标的影响。 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 处理包括再现用于清除秸秆的单个和连续操作的田间交通，包括耙；耙+打捆；和耙+打包+运输操作。在田间作业前后分别测量了2.5、5、15和30 cm深度的土壤容重（BD）、土壤渗透阻力（SPR）、大孔隙度（MaP）和微孔度（MiP）。土壤弹性模型，然后用于评估土壤物理指标变化的幅度。结果表明，打捆作业传递的应力最高（~400 kPa），其次是秸秆耙运，其传递的应力水平在土壤表面附近超过300 kPa。顺序操作的总和（即耙+捆+运输）对土壤物理质量的负面影响最大。土壤物理指标的变化幅度取决于BD和传递应力的初始条件。我们的结果表明，清除秸秆的操作会加剧土壤板结，这可能不利于维持土壤健康和植物生长。所以，