通过田间试验研究土壤管理方式对梨园土壤理化性状、微生物生物量及树体生长的影响。结果表明,行间种植三叶草和覆膜均能够降低土壤容重,增加孔隙度。行间种植三叶草显著提高梨园土壤有机质、速效磷及微量元素含量,而覆膜处理使土壤全氮、速效磷、钾养分含量下降,微量元素含量上升。与 Field experiment was conducted to study the effects of soil management on soil physical and chemical properties, microbial biomass and tree growth in pear orchard. The results showed that clover and mulching could reduce bulk density and increase porosity. Clover cultivation between rows significantly increased soil organic matter, available P and trace element contents in pear orchard, while the content of soil total nitrogen, available phosphorus and potassium decreased while the content of trace elements increased. versus