我国主要湖泊和水库水体的营养特征及其变化

为揭示我国主要湖泊和水库的营养状态,为湖泊水资源的保护奠定科学基础和提供决策依据,组织全国多个单位科研人员对全国26个湖泊和水库的水质进行了全国第一次大规模的同步调查。调查项目选择与湖泊营养状态有关的重要参数,如pH、水温、透明度、DO、COD、NH₃-N、NO₂-N、NO₃-N、TN、TP、PO₄-P、Chl-a、Mn、Fe等,根据各湖泊和水库调查结果,本文挑选最重要的几项水质参数,对我国主要湖泊和水库的水质营养特征进行了分析,获得了水质pH、透明度、溶解氧、TP、TN等营养性污染物的分布范围和规律。并且采用统计分析建立了我国湖泊水库多项水质指标间的相关关系,为湖泊管理和治理提供了科学依据。 

Tropic Characteristics and Changes of Water Bodies of the Main Lakes and Reservoirs in China

In order to reveal the trophic state of lakes and reservoirs in China and lay a scientific foundation for lake water resources protection, the first synchro investigation of wide scope into water quality of 26 lakes was carried out by a lot of scientists.The investigated items were important parameters correlating to trophic state of lakes, such as pH, water temperature, transpancy, DO, COD, NH₄+-N, NO₂-N, NO₃-N, TP, TN, PO₄3-P, Chl-a, Mn, Fe and so on.In the light of the investigated results, a few of the most important water quality parameters were selected to characterise the trophic state of the main lakes and reservoirs in China.Based on the distributions and rules of trophic pollution (pH, SD, DO, TP . TN ect.),we made correlatively statstical analysis and established correlative relation among these items. The study provided scientific basis for management and harnessing of lakes in China.