湖泊营养物基准研究进展

Progress in research on lake nutrient criteria

  • 摘要: 湖泊营养物基准是进行湖泊富营养化综合评估、预防、控制和管理的科学基础和重要手段。系统论述了国内外湖泊营养物基准的最新研究进展,重点分析了统计分析法、压力-响应模型法、模型推断法和古湖沼学法等的优缺点及适用性,提出了我国湖泊营养物基准研究的发展趋势和面临的挑战。参照湖泊最能真实反映湖区的原始状态,但参照点不易获得;模型推断法需要大量的数据资料来构建表征水体特征的函数模型,其复杂性使该方法对营养物基准的制订存在较大难度。压力-响应模型法将成为湖泊营养物基准制订的发展方向,深入开展压力-响应模型机理研究,在水生态基准与富营养化之间关系、营养物基准与浮游生物之间响应关系及营养物基准对特殊敏感种群关系研究的基础上,加强营养物基准的制订与湖泊管理需求的紧密结合。

     

    Abstract: Lake nutrient criteria provide science foundation and important tools for the comprehensive evaluation, prevention, control and management of lake eutrophication. The latest research progress of lake nutrient criteria was discussed, and the advantages, disadvantages and applicability of the different methods, such as statistical analysis, stressor-response model, model extrapolation and paleolimnology, analyzed. The development tendencies and the challenges of determining nutrient criteria were discussed. Reference lakes can reflect the original state of lakes, but reference sites were unavailable. The model extrapolation required sufficient data to identify the appropriate equations for characterizing a waterbody or group of waterbodies, which enhanced the difficulty of nutrient criteria setting. The stressor-response model would become the development direction of nutrient criteria, and the mechanism of stressor-response model should be further studied. On the basis of research on the relationships between water ecological criteria and eutrophication, and the response of nutrient criteria to plankton and to special sensitive species, the establishment of nutrient criteria should be closely integrated with the requirements of lake management.

     

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