外加磁场(1000～5000奥斯特)可使棕壤、褐土、黑土及黑钙土的持水能力、土壤比表面值下降.磁场能改善土壤微团聚体状况,它可使四种土壤<0.01mm粒级组含量减少,其减少值分别为、黑土26.01%;黑钙土7.53%,棕壤7.78%,褐土4.20%.磁处理对土壤物理性质有多方面的影响,随着研究的深入,土壤磁学必将深刻地影响土壤科学的发展. The applied magnetic field (1000 ~ 5000 Oersteds) can decrease the water-holding ability of brown soil, cinnamon soil, black soil and chernozem, and decrease the specific surface area of ​​the soil. The magnetic field can improve the condition of soil micro-aggregates, 0.01mm fraction group decreased, the reduction values ​​were 26.01% for black soil, 7.53% for black earth, 7.78% for brown soil and 4.20% for cinnamon soil.Magnetic treatment had many impacts on soil physical properties, In depth, soil magnetism will profoundly affect the development of soil science.