摘要
通过4年枯、丰、平3个水期72次DO、COD、BOD、NO_3^--N、NO_2^--N、NH_3-N、Cu^(++)、Pb^(++)、Cr^(+6)、总As和SS监测,从获得的近1980个有效数据中,研究5个监测断面,优化出最有代表性为对照断面和出境断面,从而就可以测知各类污染物的时间差异变化及控制氮化物的指标。
Nearly 1980 effective data were obtained through 72 times observation on DO, COD, BOD, N0-3-N,NO-2-N, NH3-N, Cu2+, Pb2+, Cr6+, T- As and SS in three water periods, namely dry, normal andwet, in four years. After studying 5 monitoring section, optimizing the most representative contrast sectionand exit section, temporal change for various kinds of pollutants is analyzed and control index for nitride is proposed.
出处
《地理学报》
EI
CSCD
北大核心
1999年第B06期146-151,共6页
Acta Geographica Sinica
基金
国家自然科学基金"九五"重点项目 (49631020) (Supported by the Key Project of the National National Science Foundation of China
No.49631020)
云南省自然科学基金"九五"重点项目 (96D012Z) (Supported by me key Project of the Provincial Natural Science Foun
关键词
红河
水期
污染物
变化规律
Red River, water period, pollutant, change pattern
