摘要
监测结果表明,九龙江北溪部分断面CODMn浓度介于中富营养～富营养之间,总氮、总磷和叶绿素a浓度均达到极富营养水平。经统计分析,pH值与甲藻显著相关(r=0.327,P=0.025),与溶解氧(r=0.762,P=0.000)、高锰酸盐指数(r=0.456,P=0.001)、总氮(r=0.482,P=0.001)、总磷(r=0.507,P=0.000)和叶绿素a(r=0.649,P=0.000)等非常显著相关。研究表明,虽然各项化学因子与pH值密切相关,但不是pH值变化的直接原因,而是由于水体富营养程度严重且已形成了藻类生境,甲藻的异常增殖才导致pH值异常升高。
Monitoring results show that part of the North Creek of Jiulong river,CODMn in the concentration range between eutrophic ～ eutrophication,total nitrogen,total phosphorus and chlorophyll a concentration reached the level of most nutrients.After statistical analysis,pH value and algae（r = 0.327,P = 0.025）,and dissolved oxygen（r = 0.762,P = 0.000）,potassium permanganate index（r = 0.456,P = 0.001）,total nitrogen（r = 0.482,P = 0.001）,total phosphorus（r = 0.507,P = 0.000） and chlorophyll a（r = 0.649,P = 0.000）,has very significant correlation.Studies have shown that although the chemical factor is closely related with the pH value,but pH value is not the direct cause of change,but the extent of eutrophication of water bodies has become a serious and algae habitats cohnii was caused by the abnormal proliferation of abnormal increase of pH value.
出处
《中国环境监测》
CAS
CSCD
北大核心
2010年第6期20-24,共5页
Environmental Monitoring in China
关键词
PH
甲藻
富营养化
生化因子
相关性
pH
Dinoflagellates
Eutrophication
Chemical and biological factors
Relation
