基于数理统计的湿地水体重金属污染特征评价模型构建研究

Construction of Evaluation Model for Heavy Metal Pollution Characteristics of Wetland Water Based on Mathematical Statistics

对湿地生态环境与水体污染现状进行了简要分析,采集待研究区域湿地水体样本,并对样本中的重金属离子浓度进行测定与统计,据此进行湿地水体重金属污染特征评价。采用模糊综合评价模型,根据各类重金属污染因子的关系矩阵及综合权重矩阵,结合最大隶属度原则综合评价湿地水体的重金属污染分布特征。所研究地区的湿地水体重金属污染比较严重的部分主要为矿业开采区域和工、农业生产区域;在本次实验所采集的200个水样中,重金属污染程度在中度及以上的样本数量为100个。

A brief analysis of the wetland ecological environment and water pollution status was carried out.The wetland water samples to be studied were collected,and the concentration of heavy metal ions in the samples were measured and counted.Based on this,the characteristics of wetland water body metal pollution were evaluated.The fuzzy comprehensive evaluation model is used to comprehensively evaluate the distribution characteristics of heavy metal pollution in wetland waters according to the relationship matrix of various heavy metal pollution factors and the comprehensive weight matrix,combined with the principle of maximum membership degree.The experimental results show that the serious pollution of wetland water in the study area is mainly in mining areas and industrial and agricultural production areas.Among the 200 water samples collected in this experiment,the degree of heavy metal pollution is moderate and above.The number of samples is 100.