| 摘要: |
| 根据我国24个有代表性湖泊的1987—1988年调查资料,选择Chla, TN, TP, CODMn,D作为评价参数,采用综合评分指数法,对湖泊富营养化程度进行了初步评价。结果表明,所调查的24个湖泊中,富营养湖泊16个,占调查总数的66.6％;中富营养湖泊4个,占16.7％;中营养湖泊4个,占16.7％;贫营养湖泊为零。与国外湖泊相比较,主要评价参数Chla, TN, TP的数值普遍较高,富营养湖泊的比例较大,富营养化所带来的危害亦十分严重。特别是作为饮用水源湖泊的富营养化问题,已引起人们的极大关注,急待采取有效的控制对策。 |
| 关键词: 湖泊 富营养化 评价参数 评价标准 评价模式 |
| DOI： |
| 分类号: |
| 基金项目:国家科委攻关项目,75-60-02-0l-7号 |
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| ASSESSMENT OF EUTROPHICATION IN MAIN LAKES OF CHINA |
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Shu Jinhua
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Nanjing Institute of Geography and Limnology, Academia Sinica 210008
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| Abstract: |
| On the basis of analysis data about twenty-four representative lakes in China which were investigated in 1987 - 1988, this paper selects Chl a, TP, TN, COD and SD as assessment indexes, and uses comprehensively trophic level index method to assess trophic level of main lakes in China. Results show that among these twenty- four lakes, sixteen lakes (66.6%) are eutrophic, four lakes (16.7%) are mesotrophic-eutrophic, four lakes (16.7%) are mesotrophic and none of oligotrophication. Comparing With foreign lakes, values of main assessment indexes — Chla, TP, TN are commonly high, percentage of eutrophic lakes among total investigated lakes is great and the harm caused by eutrophication is serious. Especially, the problem in eutrophic lakes which are used as drinking water source is now worrying people universally. In view of this situation of serious eutrophication of lakes in China, measures of prevention and improvement should be performed immediately. |
| Key words: Lake, Eutrophication, Assessment indexes, Assessment standard, Assessment model |
