摘要
基于2011—2015年茹河彭阳水质监测断面的水质数据,采用物元分析法对其断面水质进行评价;建立适用于该监测断面的马尔可夫预测模型对断面水质类别进行预测;同时依据平稳分布对各类水质的重现期作了分析。结果表明:彭阳水质监测断面水质为Ⅲ类;对马尔可夫链预测模型进行验证,满足预测精度;2015年9月和11月的水质类别预测结果均为Ⅲ类,且Ⅲ类水质出现的周期最短,属河流水质常态,其重现期为4.9个月,整体水质较好。
Based on the data of the Pengyang section in the Ruhe River from 2011 to 2015,the water quality was evaluated by using matter element analysis model.Markov prediction model which was suitable for this section was build to forecast water quality,meanwhile the return period of all levels water quality were analyzed according to stationary distribution.The results indicated that the water quality in the Pengyang section was in levelⅢ.The Markov chain prediction model was verified to meet the demand of prediction accuracy.The water quality in September and November of 2015 was predicted at levelⅢ.This levelⅢwater quality was normal and lasted for a short period.Its return period was 4.9 months,and the whole water quality was better.
作者
李亚斌
王海科
钱会
徐盼盼
黄涛
LI Ya-bin;WANG Hai-ke1;QIAN Hui;XU Pan-pan;HUANG Tao(School of Environment Science and Engineering,Chang'an University,Xi'an,Shanxi 710054,China;Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region,Ministry of Education,Chang'an University,Xi'an,Shanxi 710054,China;Shenyang Institute of Environmental Science,Shengyang,Liaoning 110167,China)
出处
《环境监测管理与技术》
CSCD
2018年第1期36-40,共5页
The Administration and Technique of Environmental Monitoring
基金
国家自然科学基金"银川平原地下水对条件变化的响应机制及合理开发利用研究"资助项目(41172212)
关键词
水质评价和预测
物元分析
马尔可夫链
茹河彭阳断面
Water quality assessment and prediction
Matter element analysis
Markov chain
Pengyang section in the Ruhe River
