检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
出 处:《黑龙江环境通报》2007年第1期55-56,共2页Heilongjiang Environmental Journal
摘 要:本文利用浮游植物指标来评价大庆水库“十.五“期间水质变化状况、阐述变化发展趋势。通过评价、对比,得出大庆水库水质属于轻污-中污染水体,并有稍微好转的趋势,符合饮用水源地标准。The essay evaluates the present situation of the water quality in Daqing Reservior by observing phytoplankton which is the evaluation index in water qulityduring the Tenth Five--year plan. It also analyses the trend of the water quality in Daqing Reservior by contrasting the kind and number of phytoplankton between the Ninth Five-year plan and the Tenth Five-year plan, then it draws the conelution that the water quality in Daqing Reservior is between light and middle water contamination, andit go up to the standard of drnking water.
分 类 号:X522[环境科学与工程—环境工程]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.3