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Water-soluble brown carbon in atmospheric aerosols from the resource-dependent cities:Optical properties,chemical compositions and sources

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Journal of Environmental Sciences 2024年第4期138卷 74-87页

作者： Haoji Wang yue Su Yangzheng Liu Fei Xie Xingjun Zhou ruihong yu Changwei Lü Jiang He School of Ecology and Environment Inner Mongolia UniversityHohhot 010021China Institute of Environmental Geology Inner Mongolia UniversityHohhot 010021China Environmental Monitoring Center of Inner Mongolia Hohhot 010011China

As a vital type of light-absorbing aerosol,brown carbon(BrC)presents inherent associations with atmospheric photochemistry and climate ***,the understanding of the chemical and optical properties of BrC is limited,especially in some resource-dependent cities with long heating periods in northwest *** study showed that the annual average abundances of Water-soluble BrC(WS-BrC)were 9.33±7.42 and 8.69±6.29μg/m^(3)in Baotou and Wuhai and the concentrations,absorption coefficient(Abs_(365)),and mass absorption efficiency(MAE365)of WS-BrC presented significant seasonal patterns,with high values in the heating season and low values in the non-heating season;while showing opposite seasonal trends for the Absorption Angstr?m exponent(AAE_(300-400)).Comparatively,the levels of WS-BrC in developing regions(such as cities in Asia)were higher than those in developed regions(such as cities in Europe and Australia),indicating the significant differences in energy consumption in these *** combining fluorescence excitation-emission matrix(EEM)spectra with the parallel factor(PARAFAC)model,humic-like(C1 and C2)and proteinlike(C3)substances were identified,and accounted for 61.40%±4.66%and 38.6%±3.78%at Baotou,and 60.33%±6.29%and 39.67%±4.17%at Wuhai,*** results of source apportionment suggested that the potential source regions of WS-BrC varied in heating ***-heating seasons and that the properties of WS-BrC significantly depended on primary emissions(e.g.,combustion emissions)and secondary formation.

关键词： Water-soluble brown carbon Atmospheric aerosols Optical properties PARAFAC Source apportionment

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Greenhouse gas emissions from Daihai Lake,China:Should eutrophication and salinity promote carbon emission dynamics?

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Journal of Environmental Sciences 2024年第1期135卷 407-423页

作者： Xiangwei Li ruihong yu Jun Wang Heyang Sun Xinyu Liu Xiaohui Ren Shuai Zhuang Zhiwei Guo Xixi Lu Inner Mongolia Key Laboratory of River and Lake Ecology School of Ecology and EnvironmentInner Mongolia UniversityHohhot 010070China Key Laboratory of Mongolian Plateau Ecology and Resource Utilization Ministry of EducationHohhot 010070China Autonomous Region Collaborative Innovation Center for Integrated Management of Water Resources and Water Environment in the Inner Mongolia Reaches of the Yellow River Hohhot 010018China Department of Geography National University of Singapore117570Singapore

Greenhouse gases(GHGs)emitted or absorbed by lakes are an important component of the global carbon ***,few studies have focused on the GHG dynamics of eutrophic saline lakes,thus preventing a comprehensive understanding of the carbon ***,we conducted four sampling analyses using a floating chamber in Daihai Lake,a eutrophication saline lake in Inner Mongolia Autonomous Region,China,to explore its carbon dioxide(CO_(2))and methane(CH_(4))*** mean CO_(2)emission flux(FCO_(2))and CH_(4)emission flux(FCH_(4))were 17.54±14.54 mmol/m^(2)/day and 0.50±0.50 mmol/m^(2)/day,*** results indicated that Daihai Lake was a source of CO_(2)and CH_(4),and GHG emissions exhibited temporal *** mean CO_(2)partial pressure(p CO_(2))and CH_(4)partial pressure(p CH_(4))were 561.35±109.59μatm and 17.02±13.45μatm,which were supersaturated relative to the *** regression and correlation analysis showed that the main influencing factors of p CO_(2)were wind speed,dissolved oxygen(DO),total nitrogen(TN)and Chlorophyll a(Chl.a),whereas the main influencing factors of p CH_(4)were water temperature(WT),Chl.a,nitrate nitrogen(NO_(3)^(-)-N),TN,dissolved organic carbon(DOC)and water *** regulated carbon mineralization and organic matter decomposition,and it was an important influencing factor of p CO_(2)and p CH_(4).Additionally,the trophic level index(TLI)significantly increased p CH_(4).Our study elucidated that salinity and eutrophication play an important role in the dynamic changes of GHG ***,research on eutrophic saline lakes needs to be strengthened.

关键词： Eutrophication Salinity Greenhouse gas emissions Inland lake Inner Mongolia Autonomous Region

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Research on the Innovation of Personalized Education in Colleges and Universities under the Context of Big Data

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Journal of Contemporary Educational Research 2020年第2期4卷 77-81页

作者： ruihong yu Jilin Engineering Normal University Changchun 130061Jilin ProvincesChina

The advent of the big data era has opened up unprecedented quantifiable dimensions for all walks of life,while also presented many opportunities and *** widespread application of big data in the field of education will inevitably promote the innovation and transformation of the higher education in colleges and universities which introduce new opportunities and challenges to personalized education in colleges and *** to promote the indepth integration of big data and higher education to meet the needs of students’personalized development is one of the hot topics in the theoretical field *** view of this,this article starts with explaining the connotation of personalized education in colleges and universities,analyzes the opportunities and challenges faced by personalized education in colleges and universities under the context of big data,and proposes the ideas of innovating personalized education in colleges and universities under the context of big data.

关键词： Big data Universities Personalized education Innovation

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Spatial changes and driving factors of lake water quality in Inner Mongolia, China

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Journal of Arid Land 2023年第2期15卷 164-179页

作者： REN Xiaohui yu ruihong LIU Xinyu SUN Heyang GENG yue QI Zhen ZHANG Zhuangzhuang LI Xiangwei WANG Jun ZHU Penghang GUO Zhiwei WANG Lixin XU Jifei Inner Mongolia Key Laboratory of River and Lake Ecology School of Ecology and EnvironmentInner Mongolia UniversityHohhot 010021China Key Laboratory of Mongolian Plateau Ecology and Resource Utilization Ministry of EducationHohhot 010021China

Lakes play important roles in sustaining the ecosystem and economic development in Inner Mongolia Autonomous Region of China,but the spatial patterns and driving mechanisms of water quality in lakes so far remain *** study aimed to identify the spatial changes in water quality and the driving factors of seven lakes(Juyanhai Lake,Ulansuhai Lake,Hongjiannao Lake,Daihai Lake,Chagannaoer Lake,Hulun Lake,and Wulannuoer Lake)across the longitudinal axis(from the west to the east)of Inner ***-scale research was conducted using the comprehensive trophic level index(TLI(Σ)),multivariate statistics,and spatial analysis *** results showed that most lakes in Inner Mongolia were weakly *** dissolved solids and salinity of lake water showed obvious zonation *** and phosphorus were identified as the main pollutants in lakes,with high average concentrations of total nitrogen and total phosphorus being of 4.05 and 0.21 mg/L,*** values of TLI(Σ)ranged from 49.14 to 71.77,indicating varying degrees of lake eutrophication,and phosphorus was the main driver of lake *** lakes of Inner Mongolia could be categorized into lakes to the west of Daihai Lake and lakes to the east of Daihai Lake in terms of salinity and TLI(Σ).The salinity levels of lakes to the west of Daihai Lake exceeded those of lakes to the east of Daihai Lake,whereas the opposite trend was observed for lake trophic *** intensity and mode of anthropogenic activities were the driving factors of the spatial patterns of lake water *** is recommended to control the impact of anthropogenic activities on the water quality of lakes in Inner Mongolia to improve lake ecological *** findings provide a more thorough understanding of the driving mechanism of the spatial patterns of water quality in lakes of Inner Mongolia,which can be used to develop strategies for lake ecosystem protection and water resources management i

关键词： salinity lake eutrophication lake water quality comprehensive trophic level index anthropogenic activities Daihai Lake Inner Mongolia

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无测站流域径流预测区域化方法研究进展

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水利学报 2016年第12期47卷 1528-1539页

作者：于瑞宏张宇瑾张笑欣刘廷玺内蒙古大学环境与资源学院内蒙古呼和浩特010021 内蒙古农业大学水利与土木建筑工程学院内蒙古呼和浩特010018

无测站流域径流预测是地表水文研究的难题与挑战,而区域化方法,即将水文信息从有测站流域移植至无测站或缺测站流域估算径流量的过程,则为该问题提供了有效的解决办法。由于不同流域地文属性及气候特征各不相同,目前并无通用的方法,回... 详细信息

无测站流域径流预测是地表水文研究的难题与挑战,而区域化方法,即将水文信息从有测站流域移植至无测站或缺测站流域估算径流量的过程,则为该问题提供了有效的解决办法。由于不同流域地文属性及气候特征各不相同,目前并无通用的方法,回归法、空间近似法及物理相似法是径流预测区域化研究中最常用的三种方法。基于此,本文阐明了三种方法的基本理论,综述了其研究进展、适用性及局限性,分析了区域化研究中常用水文模型及流域特征因子遴选的依据,总结了误差检验及不确定性分析的方法,并展望了径流预测区域化研究的未来发展方向。本文可为无测站流域区域化方法的选择提供基本依据与科学参考。

关键词：无测站流域区域化方法径流预测水文模型研究进展

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溶解氧对输水管道生物膜微生物群落结构及出水水质影响

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哈尔滨工业大学学报 2016年第8期48卷 24-30页

作者：雒江菡贾瑞宝于瑞洪阎力君李圭白梁恒城市水资源与水环境国家重点实验室(哈尔滨工业大学) 哈尔滨150090 济南市供排水监测中心济南250000 黑龙江生物科技职业学院哈尔滨150025 哈尔滨商业大学细胞与分子生物学研究所哈尔滨150076

为提高微污染原水输水安全性,采用生物膜环状反应器(biofilm annular reactor,BAR)模拟原水输水管网,研究溶解氧(DO)对出水水质及生物膜微生物的影响,运用454-高通量测序技术对生物膜的微生物多样性和丰度进行分析.结果表明:随着溶解氧... 详细信息

为提高微污染原水输水安全性,采用生物膜环状反应器(biofilm annular reactor,BAR)模拟原水输水管网,研究溶解氧(DO)对出水水质及生物膜微生物的影响,运用454-高通量测序技术对生物膜的微生物多样性和丰度进行分析.结果表明:随着溶解氧浓度的提高,反应器出水浊度、总铁、氨氮大幅度下降,该过程对总氮和CODMn去除的影响并不明显;生物膜中的铁细菌、硫酸盐还原菌的量均随溶解氧浓度的提高而降低,而微生物多样性和丰度(如硝化细菌)随溶解氧质量浓度的提高而升高.提高溶解氧能够缓解管道腐蚀,提高管壁生物膜的净水作用.

关键词：原水溶解氧生物膜 454-高通量测序技术微生物群落结构

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Geographically driven shifts in land use influence phytoplankton community patterns in the Inner Mongolian Plateau lakes

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Journal of Plant Ecology 2024年第5期17卷 157-175页

作者： yue Geng Xue Lei ruihong yu Xiangwei Li Heyang Sun Xingyu Liu yuan Li Xiangyu Zhang Zhuangzhuang Zhang Jifei Xu Changwei Lü Lixin Wang Jianfeng Wang Inner Mongolia Key Laboratory of River and Lake Ecology School of Ecology and EnvironmentInner Mongolia UniversityHohhot 010021China Key Laboratory of Mongolian Plateau Ecology and Resource Utilization Ministry of EducationHohhot 010021China Autonomous Region Collaborative Innovation Center for Integrated Management of Water Resources and Water Environment in the Inner Mongolia Reaches of the Yellow River Hohhot 010018China Inner Mongolia Hetao Irrigation District Water Conservancy Development Center Urat Branch Center Nine Drainage Ditch DrainageBayannur 015000China

Phytoplankton play an irreplaceable role as producers in maintaining lake ***,scant attention has been given to investigating the dispersion of phytoplankton communities and the factors influencing them across expansive *** this study,we present the results of a survey on the distribution of phytoplankton community and the effects of different driving factors in 11 lakes along Inner Mongolia in July–August ***-metric multidimensional scaling analysis and variance decomposition(VPA)were used to elucidate the distribution of phytoplankton communities and the response of drivers.A total of 169 species of phytoplankton from 8 phyla were *** the abundance and diversity of phytoplankton in the Inner Mongolia lakes showed a trend of high in the east and low in the west(with Daihai Lake as the boundary).The Margalef index of phytoplankton significantly negatively correlated with salinity(r=−0.707,P<0.05)and total dissolved solids(r=−0.720,P<0.05),and both density and biomass highly significantly positively correlated with the suspended solids,Chlorophyll a and trophic level *** VPA explained 38.9%of the changes in the phytoplankton community with the highest rate of explanation of land ***,preventing anthropogenic impacts,as well as reducing nutrient loads,can effectively ensure the ecological diversity of lake phytoplankton in lake populations with large geographical spans and varying levels of nutrients.

关键词： phytoplankton driving factor water quality land use community distribution Inner Mongolian Plateau

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大数据思维下高校思想政治教育创新研究

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吉林省教育学院学报 2022年第8期38卷 84-87页

作者：于瑞红吉林工程技术师范学院马克思主义学院

在大数据背景下,运用大数据思维,将大数据技术与高校思想政治教育教学相融合,培养具有大数据思维素养的思想政治教育教师队伍、创新思想政治教育教学方式、构建多维度协同育人机制,积极探索高校思想政治教育创新路径,从而为大学生提供... 详细信息

在大数据背景下,运用大数据思维,将大数据技术与高校思想政治教育教学相融合,培养具有大数据思维素养的思想政治教育教师队伍、创新思想政治教育教学方式、构建多维度协同育人机制,积极探索高校思想政治教育创新路径,从而为大学生提供精准化的思想政治教育,为社会主义事业培养全面发展的接班人。

关键词：大数据思维高校思想政治教育创新

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信息技术在高校教学中的运用

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现代情报 2009年第7期29卷 195-196页

作者：于瑞红吉林工程技术师范学院吉林长春130052

信息技术与高校教学的整合,使信息技术与教学的课程内容和实施过程融为一体。信息技术不仅作为知识的呈现工具,教学的辅助工具,而且作为学生强大的认知工具,优化了高校教学,提高了教学效率,完善了学生的学习方式。信息技术在新的课程理... 详细信息

信息技术与高校教学的整合,使信息技术与教学的课程内容和实施过程融为一体。信息技术不仅作为知识的呈现工具,教学的辅助工具,而且作为学生强大的认知工具,优化了高校教学,提高了教学效率,完善了学生的学习方式。信息技术在新的课程理念的实施过程中对教学的过程发挥着越来越重要的作用。

关键词：信息技术教学方法

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浅水湖泊稳态转换预警识别方法局限与展望

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生态学报 2017年第11期37卷 3619-3627页

作者：于瑞宏张笑欣刘廷玺郝艳玲内蒙古大学环境与资源学院呼和浩特010021 内蒙古农业大学水利与土木建筑工程学院呼和浩特010018

浅水湖泊水体底泥交换强烈,极易受人类活动干扰,超过一定阈值即可能发生灾难性的稳态转换,对其有效识别有助于湖泊富营养化的及时防控与修复。浅水湖泊稳态转换可通过系统关键变量(叶绿素、溶解氧、浮游动物、鱼类等)的时间序列(判别不... 详细信息

浅水湖泊水体底泥交换强烈,极易受人类活动干扰,超过一定阈值即可能发生灾难性的稳态转换,对其有效识别有助于湖泊富营养化的及时防控与修复。浅水湖泊稳态转换可通过系统关键变量(叶绿素、溶解氧、浮游动物、鱼类等)的时间序列(判别不同稳态)、预警信号及阈值等进行识别,其中预警识别可为湖泊生态系统稳态转换提供预判信息,有利于早预警早行动。目前,浅水湖泊稳态转换预警识别因子(方差及自相关性等)主要用于"临界慢化"现象,但在强大外力作用、强烈随机扰动及极端事件下,这些"临界慢化"因子则可能出现误用或错用。基于浅水湖泊基本特征,针对稳态转换的不同驱动机制,探讨"临界慢化"因子的适用性与局限性,并展望其未来发展方向,旨在为湖泊生态系统稳态转换预警识别提供科学参考。

关键词：浅水湖泊稳态转换预警识别临界慢化驱动机制局限展望

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