Understanding and experimental analysis of soil disturbance by tillage tools with different outer contours

IF 6.8 1区农林科学 Q1 SOIL SCIENCE

Soil & Tillage Research Pub Date : 2025-09-04 DOI:10.1016/j.still.2025.106835

Kuan Qin , Wei Wang , Chunsong Guan , Weidong Gao , Ding Zhang , Chengmao Cao , Junjie Lu , Xu Zhu , Jun Ge

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引用次数: 0

Abstract

To investigate the soil dynamics affected by the tillage tools with different lateral outer contours, three distinct contour profiles were designed, and a soil bin experiment was conducted. The contour profiles of the tools included a straight line, a concave brachistochrone, and a convex brachistochrone. The experimental conditions involved two soil types (sandy soil and clay soil) with moisture content ranging from 10 % to 30 %, and tool operating speeds varying from 0.03 to 0.15 m/s in increments of 0.03 m/s. In this study, Digital Particle Image Velocimetry (DPIV) was employed to measure soil disturbance caused by the tools, focusing on the fine movement of soil particles, a phenomenon often overlooked in previous studies. The final state of soil movement was categorized into two distinct areas: a covered area and an uncovered area. The experimental results indicated that the covered area predominantly determined the variation in disturbed soil when changes were made to the soil moisture content and tool velocity. In contrast, the uncovered area was largely unaffected by variations in soil moisture content or tool movement. Additionally, the interaction force between the soil and tool was investigated, revealing that it was more sensitive in clay soil compared to sandy soil.

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不同外轮廓耕具对土壤扰动的认识与实验分析

为研究不同外侧外轮廓耕具对土壤动力学的影响，设计了3种不同外侧外轮廓耕具，并进行了土仓试验。刀具的轮廓轮廓包括一条直线、一条凹的腕骨时线和一条凸的腕骨时线。试验条件涉及两种土壤类型（沙土和粘土），含水量为10 % ~ 30 %，工具运行速度为0.03 ~ 0.15 m/s，增量为0.03 m/s。本研究采用数字粒子图像测速技术（Digital Particle Image velocity， DPIV）测量工具引起的土壤扰动，重点关注土壤颗粒的细微运动，这是以往研究中经常忽视的现象。土壤运动的最终状态被分为两个不同的区域：覆盖区域和未覆盖区域。试验结果表明，当土壤含水率和刀具速度发生变化时，被扰动土壤的变化主要由被扰动面积决定。相比之下，未覆盖的区域在很大程度上不受土壤含水量变化或工具运动的影响。此外，研究了土壤与工具之间的相互作用力，发现粘土比沙土对土壤与工具之间的相互作用力更敏感。

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来源期刊

Soil & Tillage Research 农林科学-土壤科学

CiteScore

13.00

自引率

6.20%

发文量

266

审稿时长

5 months

期刊介绍： Soil & Tillage Research examines the physical, chemical and biological changes in the soil caused by tillage and field traffic. Manuscripts will be considered on aspects of soil science, physics, technology, mechanization and applied engineering for a sustainable balance among productivity, environmental quality and profitability. The following are examples of suitable topics within the scope of the journal of Soil and Tillage Research: The agricultural and biosystems engineering associated with tillage (including no-tillage, reduced-tillage and direct drilling), irrigation and drainage, crops and crop rotations, fertilization, rehabilitation of mine spoils and processes used to modify soils. Soil change effects on establishment and yield of crops, growth of plants and roots, structure and erosion of soil, cycling of carbon and nutrients, greenhouse gas emissions, leaching, runoff and other processes that affect environmental quality. Characterization or modeling of tillage and field traffic responses, soil, climate, or topographic effects, soil deformation processes, tillage tools, traction devices, energy requirements, economics, surface and subsurface water quality effects, tillage effects on weed, pest and disease control, and their interactions.