基于Mann-Kendall法和R/S分析法的星子站氨氮、总磷变化趋势分析

Trend Analysis of Ammonia and Total Phosphorus in Xingzi Station Based on Mann-Kendall Method and R/S Analysis Method

鄱阳湖及其邻近流域地区经济发展迅速,也是人类活动非常活跃的地区,具有极其重要的地理位置和敏感的生态特性。据调查长江口水体环境灾害事件愈发频繁,水体赤潮现象明显增多,故水环境质量引起社会各界学者及领导的重视,而水体中氨氮、总磷等营养物质的含量是引起富营养化非常重要的控制因素,本文通过对星子水文监测断面近二十几年的氨氮、总磷等营养盐含量指标进行系统分析,引入Mann-Kendall法和R/S分析法来探寻其变化趋势,为采取有效措施防止鄱阳湖区域水体富营养化提供科学依据。

The economic development of poyang lake and its adjacent river basins is also a very active area of human activities,with extremely important geographical location and sensitive ecological characteristics.According to the survey of aquatic environment of Yangtze estuary increasingly frequent disasters,water red tide phenomenon obviously increased,so the water environment quality cause the attention of scholars from all walks of life and leadership,and the water content of ammonia nitrogen,total phosphorus and other nutrients is the cause of eutrophication of very important controlling factors,this article through to the planetesimals hydrology monitoring section of nearly20 years of ammonia nitrogen,total phosphorus nutrient content such as index system analysis,introduced the Mann - Kendall method and R/S analysis method to explore the change tendency,to take effective measures to prevent the poyang lake region will provide a scientific basis for eutrophication.