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中国农学通报 ›› 2021, Vol. 37 ›› Issue (15): 72-77.doi: 10.11924/j.issn.1000-6850.casb2020-0416

所属专题: 资源与环境 园艺

• 资源·环境·生态·土壤·气象 • 上一篇    下一篇

茶园土壤N2O排放的影响因素及减排措施

方雅各(), 苏有健, 廖万有, 张永利, 罗毅, 孙宇龙, 廖珺, 王烨军()   

  1. 安徽省农业科学院茶叶研究所,安徽黄山 245000
  • 收稿日期:2020-08-31 修回日期:2020-12-30 出版日期:2021-05-25 发布日期:2021-05-18
  • 通讯作者: 王烨军
  • 作者简介:方雅各,男,1992年出生,安徽桐城人,研究实习员,硕士,研究方向:茶园氮循环。通信地址:245000 安徽黄山屯溪区鬲山大道28号 安徽省农业科学院茶叶研究所,Tel:0559-2591977,E-mail: yagefangjacob@163.com
  • 基金资助:
    国家重点研发计划“茶园化肥农药减施增效技术集成与示范”(2016YFD0200900);国家茶产业技术体系 “茶园土壤管理”(CARS-19);安徽省重点研究和开发计划项目“茶园有机氮素运筹与化肥减施增效关键技术研究”(1804a07020113);安徽省茶产业体系栽培岗位(AHCYJSTX-1103);安徽省农业科学院 “茶园土壤环境与地力提升”科技创新团队(2020YL056)

Influencing Factors of N2O Emission from Tea Garden Soil and Emission Reduction Measures

Fang Yage(), Su Youjian, Liao Wanyou, Zhang Yongli, Luo Yi, Sun Yulong, Liao Jun, Wang Yejun()   

  1. Tea Research Institute of Anhui Academy of Agricultural Sciences, Huangshan Anhui 245000
  • Received:2020-08-31 Revised:2020-12-30 Online:2021-05-25 Published:2021-05-18
  • Contact: Wang Yejun

摘要:

茶园土壤通过微生物作用释放大量氧化亚氮(N2O),因此需迫切了解茶园土壤N2O产生机制及影响因素,以期为茶园土壤N2O减排提供理论依据。从氮源、有机质、pH、水分、温度、质地等角度对茶园土壤N2O排放的影响进行综述,提出相应的N2O减排措施。对以上影响因素阐述发现:反硝化作用对茶园土壤N2O排放的贡献较大;氮肥施用、土壤理化性质、气象因子等是茶园土壤N2O排放的关键因素。施用缓释氮肥、氮肥深施、采用氮肥推荐施用量、养分有机替代技术能降低茶园土壤N2O排放。

关键词: 茶园土壤, N2O, 硝化作用, 反硝化作用, 影响因素, 减排措施

Abstract:

The soil of tea plantations can release large amounts of nitrous oxide (N2O) through the role of microorganisms. Therefore, it is so urgent to understand the mechanism and influencing factors of N2O production from the tea garden soil to provide a theoretical basis for reducing N2O emission. A review of the effects of nitrogen source, organic matter, pH, moisture, temperature and texture on N2O emission from the soil of tea plantations was conducted, and the corresponding measures of N2O emission reduction were proposed. Through explaining the above influencing factors, we found that denitrification had big contribution to N2O emission; nitrogen fertilizer application, the physical and chemical properties of soil and meteorological factors played important roles in N2O emission. Application of slow-release nitrogen fertilizer, deep application of nitrogen fertilizer, using recommended amount of nitrogen fertilizer, and organic nutrient replacement technology could reduce N2O emission of tea plantation soil.

Key words: tea plantation soil, N2O, nitrification, denitrification, influencing factors, emission reduction measures

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