用尼梅罗(Nemerow)污染指数评价地表水营养状况的探讨

DISCUSSION ON MEANS OF EVALUATION FOR ALIMENTATIVE STATUS OF SURFACE WATER WITH NEMEROW POLLUTION INDEX

引用尼梅罗指数公式 ,通过对其适当改造来评价水体的营养状态水平 ,论述了该方法的可行性和现实性、项目选择的依据及实际应用 ,实践证明 ,与传统评价方法相比 。

The present paper presents a new approach to the evaluation of water's alimentative level on the basis of modifying the Nemerow Formula. As is known, high alimentative water is a serious worldwide problem involving the environmental protection. The tendency of alimentative water has accelerating. Therefore, it is of great scientific as well as practical significance to know the actual level of the alimentative water in view of the economic construction and better environmental protection. However, there is still no efficient method for such evaluation practice in spite of the fact that traditional evaluation methods, though numerous, remain low efficient, for example, the subjectivity of the ecological evaluation, the unilateralism of index method and the complexity of mode evaluation. The author has quoted the Nemerow Formula and made some proper changes with it being used to evaluate the alimentative level of water. The paper comments on the feasibility and reliability, the item basis and actual application of the method. The experiment the author has done proves that our newly improved method is more feasible and credible than the traditional ones.