摘要
蚯蚓多样性是蚯蚓种群及群落的多样性,蚯蚓活动能够改善土壤物理性质,通过取食、携带传播微生物等方式影响土壤微生生物量及土壤酶活性,使复杂有机质转变为微生物可利用的形式,同时形成的蚯蚓穴可以增加土壤孔隙度和通气性,涵养了水分又增加了孔道氧气含量,促进微生物对有机质的矿化。蚯蚓粪及黏液的分泌排泄释放的脲酶、蔗糖酶和过氧化氢酶等生物酶,加快土壤养分的周转率。该文简述了蚯蚓多样性与土壤的生态功能方面的研究进展,探讨了不同生态型蚯蚓的作用机制以及对土壤中碳、氮、磷养分循环等过程产生的影响,阐明了表栖型、内栖型及深栖型蚯蚓对土壤生态的不同影响方式。
Earthworm diversity is the diversity of earthworm populations and communities.Various types of earthworm activities can improve the physical properties of the soil.They can affect the microbial biomass of the soil and the activity of soil enzymes by feeding,carrying and spreading microorganisms,so that complex organic matter can be transformed into microorganisms.In the form of utilization,the earthworm cave formed at the same time can increase soil porosity and aeration,conserve water and increase pore oxygen content,and promote the mineralization of organic matter by microorganisms.Earthworm feces and mucus secretion and excretion release urease,sucrase and catalase and other biological enzymes to accelerate the turnover rate of soil nutrients.This article briefly describes the study of earthworm diversity and soil ecological functions to understand the mechanism of action of different ecological earthworms,and the impact on the processes of carbon,nitrogen and phosphorus nutrients in the soil.Earthworms have different ways of influencing soil ecology.
作者
成德久
邵将
张学海
汪紫凡
CHENG Dejiu(School of Earth and Environment,Anhui University of Science and Technology,Huainan 232001,China)
出处
《安徽农学通报》
2020年第17期23-24,144,共3页
Anhui Agricultural Science Bulletin
基金
大学生创新创业训练计划项目(201910361001,201810361009,201710361006)。
关键词
蚯蚓多样性
微生物量
土壤酶活性
生态系统
Earthworm diversity
Microbial biomass
Soil enzyme activity
Ecosystem
