欢迎访问《中国农学通报》,

中国农学通报 ›› 2014, Vol. 30 ›› Issue (33): 120-126.doi: 10.11924/j.issn.1000-6850.2014-0660

• 农学 农业基础科学 • 上一篇    下一篇

蚯蚓对土壤碳氮循环的影响及其作用机理研究进展

贺 慧1,2,郑华斌2,3,刘建霞1,2,姚 林1,2,黄 璜2,3   

  1. (1湖南农业大学生物科学技术学院,长沙 410128;2农业部华中地区作物栽培科学观测实验站,长沙 410128;3湖南农业大学农学院,长沙 410128)
  • 收稿日期:2014-03-13 修回日期:2014-11-10 接受日期:2014-07-17 出版日期:2015-01-08 发布日期:2015-01-08
  • 通讯作者: 贺慧
  • 基金资助:
    “十二五”农业公益性行业项目“‘稻-渔’耦合养殖技术研究与示范”(201203081);长江中游南部(湖南)水稻丰产节水节肥技术集成与示范(2013BAD07B11)。

Progress and Prospect of Effect and Mechanism of Earthworm on the Cycle of Soil Carbon and Nitrogen

He Hui1,2, Zheng Huabin2,3, Liu Jianxia1,2, Yao Lin1,2, Huang Huang2,3   

  1. (1College of Bio-science & Technology, Hunan Agricultural University, Changsha 410128; 2Observation Station of Crop Cultivation Science in Central China, Ministry of Agriculture, Changsha 410128;3College of Agronomy, Hunan Agricultural University, Changsha 410128)
  • Received:2014-03-13 Revised:2014-11-10 Accepted:2014-07-17 Online:2015-01-08 Published:2015-01-08

摘要: 蚯蚓是一种大型的土壤动物,在土壤碳氮循环中起着重要作用。从植被生产力、有机质的矿化分解、生物利用等方面总结了蚯蚓在土壤碳循环和氮循环中的影响及其作用的内在机理,蚯蚓通过对土壤的取食、钻孔,以及自身代谢产生的粪便和分泌物提高了植被生产力、增加了土壤碳库存量和土壤—大气碳通量、增加了生物固氮作用、加速了凋落物的碎屑和分解、加速了土壤氮素的矿化和反硝化作用的进行、减少了土壤氮的淋失,提出了蚯蚓在稻田生态系统的应用前景,为培肥土壤和土壤的可持续性利用提供理论依据和指导意义。

关键词: 经济性状, 经济性状

Abstract: Earthworm, as a large-size soil animal, plays an important role in the cycle of soil carbon and nitrogen. The paper summarized the effect and mechanism of earthworm in the soil carbon and nitrogen cycle such as plant productivity, mineralization and decomposition of organic matter and bio-utilization. The disturbance of earthworms, such as eating soil, feces drilling, and their droppings and secretions produced by the metabolism, improved plant productivity, increased soil carbon stock and the flux of atmospheric-soil, increased biological nitrogen fixation, accelerate the debris and decomposition of the litterfall, accelerated soil nitrogen mineralization and denitrification and reduced soil nitrogen leaching. The research put forward the application prospect of earthworm in the paddy ecosystem and provided some theoretical foundation and guiding significance for the improvement of soil fertility and the sustainable use of soil.