一、改土造肥:蚯蚓常年生活在土壤之中,以沃土、动植物残体为食料,并不断向纵横方向钻孔打洞,排泄粪便,这对改善土壤结构和物理特性——孔隙度、透水性、通气性和持水性等有一定作用,同时由于蚯蚓的活动,使深层土不断地翻到表层,可加速土壤熟化,造成良好团粒结构。 First, soil improvement and fertilizer: earthworms live in the soil all year round, to fertile soil, animal and plant debris as foodstuffs, and continue drilling holes to the vertical and horizontal holes, excretion of manure, which improve soil structure and physical properties - porosity , Water permeability, aeration and water holding have a certain role, at the same time as earthworms activities, so that the deep soil turned to the surface, can accelerate the soil maturation, resulting in a good aggregate structure.