Article(id=1222963537337635281, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1222963536863678929, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20220997, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1652284800000, receivedDateStr=2022-05-12, revisedDate=1657123200000, revisedDateStr=2022-07-07, acceptedDate=null, acceptedDateStr=null, onlineDate=1769506828864, onlineDateStr=2026-01-27, pubDate=1682352000000, pubDateStr=2023-04-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769506828864, onlineIssueDateStr=2026-01-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769506828864, creator=13701087609, updateTime=1769506828864, updator=13701087609, issue=Issue{id=1222963536863678929, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='4', pageStart='1', pageEnd='220', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769506828752, creator=13701087609, updateTime=1769508076664, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1222968771057279321, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1222963536863678929, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1222968771057279322, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1222963536863678929, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=73, endPage=75, ext={EN=ArticleExt(id=1222963537580904916, articleId=1222963537337635281, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Measurement and Analysis of Elastic Modulus of Aquatic Plants in Ecological Lakes in Central Plains, columnId=1222925279849341011, journalTitle=Water Resources and Power, columnName=HYDROLOGY, WATER RESOURCES AND ENVIRONMENT, runingTitle=null, highlight=null, articleAbstract=

As an important factor in the ecological environment of lakes, aquatic plants play a key role in the restoration and management of lakes. The water blocking effect of aquatic plants has a significant impact on the flood storage and discharge process of lakes, so the impact of aquatic plants on the roughness has become an important part of the hydraulic research of ecological lakes. The height of aquatic plants is closely related to the roughness of lakes. The elastic modulus of aquatic plants is an important mechanical property parameter for calculating its deformation. The stem of aquatic plants is simplified as a cantilever beam with variable cross-section. Through the bending deformation test of eight aquatic plants, the tensile force, displacement and other parameters are measured, and the elastic modulus value is calculated. The basic range of the measured elastic modulus change of eight aquatic plants is obtained. The comparison shows that the elastic modulus of these aquatic plants increases with the growth age or total length.

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水生植物作为湖泊生态环境中的重要因子,对湖泊的修复治理具有关键作用。水生植物的阻水作用对湖泊蓄泄洪过程影响显著,从而水生植物对糙率的影响成为生态湖泊水力学研究的重要内容。水生植物高度与湖泊糙率密切相关,因而水生植物弹性模量是计算其变形量的重要力学性能参数。将水生植物茎秆简化为变截面悬臂梁,通过对8种水生植物弯曲变形试验,测得拉力、位移等参数,计算其弹性模量值,得到实测的8种水生植物弹性模量变化的基本范围。对比可知,这些水生植物的弹性模量均随生长龄期或总长的增长而增长。

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李占松(1965-),男,博士、副教授,研究方向为水力学及河流动力学,E-mail:

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李占松(1965-),男,博士、副教授,研究方向为水力学及河流动力学,E-mail:

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李占松(1965-),男,博士、副教授,研究方向为水力学及河流动力学,E-mail:

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中原地区生态湖若干水生植物弹性模量实测及分析
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李占松 , 刘颖 , 孙艳鹏 , 赵顺 , 路恒 , 陈冰倩
水电能源科学 | 水文水资源与环境 2023,41(4): 73-75
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水电能源科学 | 水文水资源与环境 2023, 41(4): 73-75
中原地区生态湖若干水生植物弹性模量实测及分析
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李占松 , 刘颖, 孙艳鹏, 赵顺, 路恒, 陈冰倩
作者信息
  • 郑州大学水利与土木工程学院,河南 郑州 450001
  • 李占松(1965-),男,博士、副教授,研究方向为水力学及河流动力学,E-mail:

Measurement and Analysis of Elastic Modulus of Aquatic Plants in Ecological Lakes in Central Plains
Zhan-song LI , Ying LIU, Yan-peng SUN, Shun ZHAO, Heng LU, Bing-qian CHEN
Affiliations
  • College of Water Resources and Civil Engineering, Zhengzhou University, Zhengzhou 450001, China
出版时间: 2023-04-25 doi: 10.20040/j.cnki.1000-7709.2023.20220997
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水生植物作为湖泊生态环境中的重要因子,对湖泊的修复治理具有关键作用。水生植物的阻水作用对湖泊蓄泄洪过程影响显著,从而水生植物对糙率的影响成为生态湖泊水力学研究的重要内容。水生植物高度与湖泊糙率密切相关,因而水生植物弹性模量是计算其变形量的重要力学性能参数。将水生植物茎秆简化为变截面悬臂梁,通过对8种水生植物弯曲变形试验,测得拉力、位移等参数,计算其弹性模量值,得到实测的8种水生植物弹性模量变化的基本范围。对比可知,这些水生植物的弹性模量均随生长龄期或总长的增长而增长。

水生植物  /  弹性模量  /  等效惯性矩  /  变截面悬臂梁

As an important factor in the ecological environment of lakes, aquatic plants play a key role in the restoration and management of lakes. The water blocking effect of aquatic plants has a significant impact on the flood storage and discharge process of lakes, so the impact of aquatic plants on the roughness has become an important part of the hydraulic research of ecological lakes. The height of aquatic plants is closely related to the roughness of lakes. The elastic modulus of aquatic plants is an important mechanical property parameter for calculating its deformation. The stem of aquatic plants is simplified as a cantilever beam with variable cross-section. Through the bending deformation test of eight aquatic plants, the tensile force, displacement and other parameters are measured, and the elastic modulus value is calculated. The basic range of the measured elastic modulus change of eight aquatic plants is obtained. The comparison shows that the elastic modulus of these aquatic plants increases with the growth age or total length.

aquatic plant  /  modulus of elasticity  /  equivalent moment of inertia  /  variable section cantilever beam
李占松, 刘颖, 孙艳鹏, 赵顺, 路恒, 陈冰倩. 中原地区生态湖若干水生植物弹性模量实测及分析. 水电能源科学, 2023 , 41 (4) : 73 -75 . DOI: 10.20040/j.cnki.1000-7709.2023.20220997
Zhan-song LI, Ying LIU, Yan-peng SUN, Shun ZHAO, Heng LU, Bing-qian CHEN. Measurement and Analysis of Elastic Modulus of Aquatic Plants in Ecological Lakes in Central Plains[J]. Water Resources and Power, 2023 , 41 (4) : 73 -75 . DOI: 10.20040/j.cnki.1000-7709.2023.20220997
2023年第41卷第4期
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doi: 10.20040/j.cnki.1000-7709.2023.20220997
  • 接收时间:2022-05-12
  • 首发时间:2026-01-27
  • 出版时间:2023-04-25
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  • 收稿日期:2022-05-12
  • 修回日期:2022-07-07
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    郑州大学水利与土木工程学院,河南 郑州 450001
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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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