期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
洪湖新堤干渠水质及污染源调查与分析 被引量:1
1
作者 许巍 管硕 +6 位作者 封瑛 李兆华 张雅钦 李珍 杨伊默 周亮 谢冬冬 《环境保护前沿》 2014年第5期180-186,共7页
针对洪湖新堤干渠的水质调查实验,我们主要采用国标法测量水体中氨氮,总氮,总磷,COD这四个指标,并在后期的数据分析中采用单因子分析法,结合水质综合评价标准对上述四个指标逐个分析,发现洪湖新堤干渠水质为III类,而且总氮和总磷含量明... 针对洪湖新堤干渠的水质调查实验,我们主要采用国标法测量水体中氨氮,总氮,总磷,COD这四个指标,并在后期的数据分析中采用单因子分析法,结合水质综合评价标准对上述四个指标逐个分析,发现洪湖新堤干渠水质为III类,而且总氮和总磷含量明显偏高,通过实地调查我们发现水体污染和当地支柱产业——水产养殖有着密切的联系。基于各项调查及实验,提出了治理水污染的相关建议。 展开更多
关键词 洪湖新堤干渠 国标法 单因子分析法 水质综合评价标准 水产养殖
下载PDF
Comprehensive Assessment of Seawater Quality Based on an Improved Attribute Recognition Model 被引量:4
2
作者 ZHANG Libing CHENG Jilin +1 位作者 JIN Juliang JIANG Xiaohong 《Journal of Ocean University of China》 SCIE CAS 2006年第4期300-304,共5页
The attribute recognition model (ARM) has been widely used to make comprehensive assessment in many engineering fields, such as environment, ecology, and economy. However, large numbers of experiments indicate that th... The attribute recognition model (ARM) has been widely used to make comprehensive assessment in many engineering fields, such as environment, ecology, and economy. However, large numbers of experiments indicate that the value of weight vector has no relativity to its initial value but depends on the data of Quality Standard and actual samples. In the present study, the ARM is enhanced with the technique of data driving, which means some more groups of data from the Quality Standard are selected with the uniform random method to make the calculation of weight values more rational and more scientific. This improved attribute recognition model (IARM) is applied to a real case of assessment on seawater quality. The given example shows that the IARM has the merits of being simple in principle, easy to operate, and capable of producing objective results, and is therefore of use in evaluation problems in marine environment science. 展开更多
关键词 comprehensive assessment seawater quality improved attribute recognition model
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部