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茶园生态系统土壤氮素损失途径研究进展

ResearchAdvances on Pathway of Nitrogen Loss in Tea Plantation Soil

  • 摘要: 氮是茶树生长发育所必需的营养元素,对产量与品质的形成具有重要意义。茶园氮肥施用量大,容易造成肥料浪费,同时对环境造成负面影响。本文论述了茶园氮素淋溶、地表径流、氨挥发和氧化亚氮排放等去向及其影响因素的研究现状,以期为今后茶园土壤氮素损失阻控研发及氮素高效利用提供研究方向和基础。

     

    Abstract: Nitrogen is anessential nutrient for the growth and development of tea plants. Consequently,it is significant concerning the crop yield and tea quality. Since an enormousamount of nitrogen fertilizer is used annually at tea plantations, any waste canconsiderably ill-affect the ecosystem. This article reviews the current statusof research on the leaching, surface runoff, ammonia volatilization, andnitrous oxide emissions associated with nitrogen fertilization at teaplantations. Critical factors affecting those issues are discussed to providereference for future studies relating to the loss control and effectiveutilization of nitrogen fertilizer at tea plantations.

     

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