三明市酸、碱降水成因研究

三明市属福建省内陆山区，在东、西相差仅四公里的两个测点，常常一边下硫酸盐型酸雨，一边下钙盐型碱雨这一特殊降水过程。从离子成分、离子浓度比进行分析，并从局地污染源、气象等因素就其成因作了探索性研究，将影响降水ｐＨ值的污染因子进行灰色关联优势分析。结果表明，三明市降水污染相当严重，在重视酸性降水污染的同时，也不应忽视污染更为严重的碱性降水

Study on the Formative Cause of Acid and Alkaline Rain in Sanming City

The Phenomena that properties of the rain at two monitoring spots lying in the east and west of Sanming city in the mountain of Fujian province,with the distance of four kilometers were obviously different,the rain at one spot belonging to the sulphate type acid rain while the rain at the other spot belonging to the calcium type rain,often occur.Some representative acid and alkaline rains were selected to analysis on the constitution and strength ratio of the ions.The influences of some facts such as local pollution source,atmosphere on the properties of the rain were further discussed.Effect of pH on the rain property was researched by using the correlation analysis of grey system.The result btained from the data indicated that not only the damages of the acid rain but also those of the alkaline rain deserve our attentions.