摘要
湖泊水污染情势对于湖泊的水功能发挥有指示意义。为研究过去近10年来我国典型湖泊中氮、磷浓度变化特征及水质情况,并探讨人类各领域活动对其的影响,收集了2010—2018年五大湖区14个典型湖泊的总氮与总磷浓度数据以及湖泊所在地级市的人口及经济数据。结果表明:(1)过去近10年我国五大湖区湖泊的总氮及总磷浓度整体上呈微弱下降趋势。(2)五大湖区水质的区域差异性显著,东部平原湖区水质较差,青藏高原湖区水质情况最优,而云贵高原湖区中湖泊水质情况差异较大。(3)人类活动对我国湖泊氮、磷浓度的影响很大,其中人口密度及工业产值对总氮、总磷浓度影响突出,达到显著水平,而政府对工业废水的管控会减轻湖泊污染。
The status of lake water pollution has an indicative significance for the water function of lakes. In this study, we collected the data of total nitrogen and phosphorus concentrations, human population and economy in 14 typical lakes between 2010 and 2018 across the whole country. The characteristics of the changes in nitrogen and phosphorus concentrations and water quality were analyzed in relation to human activities. The results showed that:(1) In the past 10 years, total nitrogen and phosphorus concentrations in China’s typical lakes tended to have a slightly decreasing trend.(2) The regional differences of lake water quality were significant, the lakes of East Limnetic Region showed poor water quality, the lakes of Tibet-Qinghai Limnetic Region showed the best water quality conditions. In contrast, there were great differences in water quality within the Yungui Limnetic Region.(3) Human activities had a great impact on nitrogen and phosphorus concentrations in China’s lakes. Population density, industry and construction exerted a significant impact on the total nitrogen and phosphorus concentrations. We suggested that controlling industrial wastewater by the government could reduce lake pollution.
作者
周楠
徐学选
袁志友
ZHOU Nan;XU Xuexuan;YUAN Zhiyou(Institute of Soil and Water Conservation,Northwest A&F University,Yangling,Shaanxi 712100;Institute of Soil and Water Conservation,Chinese Academy of Science and Ministry of Water Resource,Yangling,Shaanxi 712100)
出处
《水土保持学报》
CSCD
北大核心
2022年第5期281-286,共6页
Journal of Soil and Water Conservation
基金
国家重点研发计划项目(2016YFA0600801)
陕西省百人计划项目(A289021701)
陕西省自然科学基础研究计划项目(2018JZ3002)。
关键词
湖泊
氮
磷
水质
人类活动
lakes
nitrogen
phosphorus
water quality
human activities
