Article(id=1223278133172895958, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223278131956551924, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20222548, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1670342400000, receivedDateStr=2022-12-07, revisedDate=1672934400000, revisedDateStr=2023-01-06, acceptedDate=null, acceptedDateStr=null, onlineDate=1769581834356, onlineDateStr=2026-01-28, pubDate=1698163200000, pubDateStr=2023-10-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769581834356, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769581834356, creator=13701087609, updateTime=1769581834356, updator=13701087609, issue=Issue{id=1223278131956551924, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='10', pageStart='1', pageEnd='228', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769581834067, creator=13701087609, updateTime=1769584342407, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223288652869030422, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223278131956551924, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223288652869030423, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223278131956551924, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=50, endPage=53, ext={EN=ArticleExt(id=1223278133944647903, articleId=1223278133172895958, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Prediction of Electrical Conductivity in Sub-lake of Poyang Lake Based on Random Forest Regression Model and High-frequency Data, columnId=1222925279849341011, journalTitle=Water Resources and Power, columnName=HYDROLOGY, WATER RESOURCES AND ENVIRONMENT, runingTitle=null, highlight=null, articleAbstract=

Conductivity is an important parameter to measure water quality. High-frequency monitoring of water conductivity plays an important role in water quality management. Due to the complexity of field conditions, equipment failure often leads to data loss. In order to improve the high-frequency monitoring data, machine learning model was used to predict the conductivity content in water body based on the meteorological and physical indexes obtained from high-frequency monitoring. The results show that the random forest regression model has the best prediction effect, with its determination coefficient R2 reaching 0.996, root mean square error (RRMSE) 1.31 μS/cm, and mean relative error (M MRE) 0.38%. The pH value contributed the most and was the dominant factor affecting the conductivity. The results are conducive to optimizing the field high-frequency monitoring system platform, improving the high-frequency monitoring data, which provides scientific basis for water quality management.

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电导率是衡量水质的重要参数,高频监测获取水体中电导率对水质管理具有重要作用。由于野外条件的变化复杂性引起设备故障导致数据缺失时有发生,为优化野外监测体系和插补缺失数据,基于高频监测获取的气象和水体物理指标,结合机器学习模型,预测水体中电导率值。结果表明,随机森林回归模型预测效果最优,其决定系数R2可达0.996,均方根误差RRMSE为1.31 μS/cm,平均相对误差M MRE为0.38%;pH值贡献率最大,是影响电导率的主导因素。研究结果利于优化野外高频监测系统平台,健全高频监测数据,为水质管理提供科学依据。

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黄琪(1985-),男,博士、助理研究员、硕导,研究方向为自然地理学,E-mail:
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刘丽贞(1987-),女,副研究员,研究方向为水环境生态,E-mail:

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刘丽贞(1987-),女,副研究员,研究方向为水环境生态,E-mail:

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刘丽贞(1987-),女,副研究员,研究方向为水环境生态,E-mail:

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基于随机森林回归模型和高频数据的鄱阳湖子湖电导率预测
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刘丽贞 1 , 黄琪 2 , 迟殿委 3 , 方朝阳 2 , 楚明航 1
水电能源科学 | 水文水资源与环境 2023,41(10): 50-53
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水电能源科学 | 水文水资源与环境 2023, 41(10): 50-53
基于随机森林回归模型和高频数据的鄱阳湖子湖电导率预测
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刘丽贞1 , 黄琪2 , 迟殿委3, 方朝阳2, 楚明航1
作者信息
  • 1.江西省科学院微生物研究所,江西 南昌 330096
  • 2.江西师范大学鄱阳湖湿地与流域研究教育部重点实验室,江西 南昌 330022
  • 3.烟台理工学院人工智能学院,山东 烟台 264005
  • 刘丽贞(1987-),女,副研究员,研究方向为水环境生态,E-mail:

通讯作者:

黄琪(1985-),男,博士、助理研究员、硕导,研究方向为自然地理学,E-mail:
Prediction of Electrical Conductivity in Sub-lake of Poyang Lake Based on Random Forest Regression Model and High-frequency Data
Li-zhen LIU1 , Qi HUANG2 , Dian-wei CHI3, Chao-yang FANG2, Ming-hang CHU1
Affiliations
  • 1.Institute of Microbiology of Jiangxi Academy of Sciences, Jiangxi Academy of Sciences, Nanchang 330096, China
  • 2.Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Jiangxi Normal University, Nanchang 330022, China
  • 3.College of Artificial Intelligence, Yantai Institute of Technology, Yantai 264005, China
出版时间: 2023-10-25 doi: 10.20040/j.cnki.1000-7709.2023.20222548
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电导率是衡量水质的重要参数,高频监测获取水体中电导率对水质管理具有重要作用。由于野外条件的变化复杂性引起设备故障导致数据缺失时有发生,为优化野外监测体系和插补缺失数据,基于高频监测获取的气象和水体物理指标,结合机器学习模型,预测水体中电导率值。结果表明,随机森林回归模型预测效果最优,其决定系数R2可达0.996,均方根误差RRMSE为1.31 μS/cm,平均相对误差M MRE为0.38%;pH值贡献率最大,是影响电导率的主导因素。研究结果利于优化野外高频监测系统平台,健全高频监测数据,为水质管理提供科学依据。

电导率  /  随机森林回归模型  /  高频监测数据  /  鄱阳湖

Conductivity is an important parameter to measure water quality. High-frequency monitoring of water conductivity plays an important role in water quality management. Due to the complexity of field conditions, equipment failure often leads to data loss. In order to improve the high-frequency monitoring data, machine learning model was used to predict the conductivity content in water body based on the meteorological and physical indexes obtained from high-frequency monitoring. The results show that the random forest regression model has the best prediction effect, with its determination coefficient R2 reaching 0.996, root mean square error (RRMSE) 1.31 μS/cm, and mean relative error (M MRE) 0.38%. The pH value contributed the most and was the dominant factor affecting the conductivity. The results are conducive to optimizing the field high-frequency monitoring system platform, improving the high-frequency monitoring data, which provides scientific basis for water quality management.

conductivity  /  random forest regression model  /  high-frequency monitoring data  /  Poyang Lake
刘丽贞, 黄琪, 迟殿委, 方朝阳, 楚明航. 基于随机森林回归模型和高频数据的鄱阳湖子湖电导率预测. 水电能源科学, 2023 , 41 (10) : 50 -53 . DOI: 10.20040/j.cnki.1000-7709.2023.20222548
Li-zhen LIU, Qi HUANG, Dian-wei CHI, Chao-yang FANG, Ming-hang CHU. Prediction of Electrical Conductivity in Sub-lake of Poyang Lake Based on Random Forest Regression Model and High-frequency Data[J]. Water Resources and Power, 2023 , 41 (10) : 50 -53 . DOI: 10.20040/j.cnki.1000-7709.2023.20222548
  • 江西省重点研发计划(20212BBG73014; 20192ACB70014)
  • 江西省主要学科学术和技术带头人培养计划———青年人才项目(20212BCJ23034)
  • 江西省青年重点基金项目(20192ACBL21022)
  • 鄱阳湖湿地与流域研究教育部重点实验室开放基金项目(PK2019006)
  • 江西省科学院杰出青年人才培育计划(2021YSBG50004)
2023年第41卷第10期
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doi: 10.20040/j.cnki.1000-7709.2023.20222548
  • 接收时间:2022-12-07
  • 首发时间:2026-01-28
  • 出版时间:2023-10-25
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出版历史
  • 收稿日期:2022-12-07
  • 修回日期:2023-01-06
基金
江西省重点研发计划(20212BBG73014; 20192ACB70014)
江西省主要学科学术和技术带头人培养计划———青年人才项目(20212BCJ23034)
江西省青年重点基金项目(20192ACBL21022)
鄱阳湖湿地与流域研究教育部重点实验室开放基金项目(PK2019006)
江西省科学院杰出青年人才培育计划(2021YSBG50004)
作者信息
    1.江西省科学院微生物研究所,江西 南昌 330096
    2.江西师范大学鄱阳湖湿地与流域研究教育部重点实验室,江西 南昌 330022
    3.烟台理工学院人工智能学院,山东 烟台 264005

通讯作者:

黄琪(1985-),男,博士、助理研究员、硕导,研究方向为自然地理学,E-mail:
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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