摘要
文章首先通过对灰色聚类模型的机理解释以及该模型评价步骤的描述,然后应用该模型对北江中上游支流沉积物中重金属的环境质量进行评价。评价结果为:除浈江的沉积物灰类为三级标准外,其他聚类样本的灰类均为一级或二级标准。这说明浈江沉积物污染相对严重,滨江和龙塘河污染最小。同时将该方法评价结论与被引文献中结论相比较,两者的评价结果基本一致。通过该方法的实际应用,说明了灰色聚类模型能达到对沉积物环境质量评价目的与实用性。
This paper first explained the mechanism of the grey clustering model and described the evaluation process of the model,and then the environmental quality assessment of heavy metals in sediment of Bei Rivers tributaries were studied based on this model.The results showed that except the sediments of Zhen Rivers grey class was grade III,the rest samples were grade I or grade II.It indicated that the contamination of Zhen Rivers sediment was relatively serious,and Bin River and Longtang River were slightly polluted.Meanwhile,the conclusions of this method were compared with the cited literature and it showed that the conclusions were basically identical.The application of this method indicated that the grey clustering model could achieve the purpose and the practical applicability in the environmental quality evaluation of sediment.
出处
《环境科学与管理》
CAS
2012年第2期183-185,194,共4页
Environmental Science and Management
关键词
灰色聚类模型
重金属
环境质量评价
grey clustering model
heavy metal
environmental quality assessment
