基于模糊综合—聚类评价模型的烟台市区排污混合区范围论证

Range verification based on the model of fuzzy comprehensive-cluster evaluation in pollution mixing zone located in Yantai city

基于烟台市区排污混合区2009年2月的海水水质监测资料,应用模糊综合—聚类评价模型对混合区的水质现状进行综合评价,并利用克里格插值法对水质进行平面空间分析,进而论证混合区范围划定的合理性。该模型克服了单独应用模糊综合评价或模糊聚类分析进行水质评价的不足,结合了两者的优点。结果表明:混合区中部水质为四类或劣四类,边缘水质为二类或三类,西北部水质优于东南部。混合区相邻海域水质已达到相应的海域功能要求,可见该混合区范围的划定是合理的。

Based on the investigation data of pollution mixing zone located in Yantai city in February 2009,the model of fuzzy comprehensive-cluster evaluation is used to evaluate the present sea water quality,and the distribution for the water quality is analyzed by Kriging interpolation,then the rational range of mixing zone is proved. This model overcomes the deficiency which the fuzzy comprehensive evaluation or fuzzy cluster analysis is used solely for water quality evaluation,and combines their advantages. The results show that the center quality is the fourth or inferior fourth level,the edge quality is the second or third level,and the northwest quality is better than the southeast of the mixing zone. The water quality of adjacent mixing zone has come up to corresponding marine area functional demands,so the range of this mixing zone is rational.