蚯蚓对改良土壤和改善农业生态环境的作用

Role of Earthworms to the Soil Improvement and the Agroecosystems

蚯蚓对土壤的耕耘比犁耕更有效,加强土壤通气;提供有益细菌,将土壤中的氨转化成为便于农作物吸收利用的形态;有助于将土壤中各种复合分子分解成为植物根系能够利用的成分。蚯蚓及时将地面残留的落叶枯草裂解转化为对土壤和植物的营养物质,可处理动物粪便以及城市垃圾,对有机农业和生态农业都有重要意义。

Earthworms till the soil more intimately than any plough. By burrowing, they provide aeration. Earthworm manure (called castings) is highly valued by gardeners, they promote bacteria in the soil, and most soil bacteria, rather than being bad germs, are useful in such things as converting ammonium to a form of nitrogen that plants can absor,and breaking down other complex molecules so roots can absorb them. They help with the treatment of animal manure or city sewage. In furtherance of agriculture, earthworms are responsible for the development of organic agricmlfure and agroevosystem.