检索结果-内蒙古大学图书馆

The third dimension of alpine plant leaf traits is related to cold-tolerance

Plant Diversity 2025年第1期47卷 159-165页

作者： Yuan Wang Ji Suonan Kun Liu Yanni Gao Sihao Zhu Qian Liu Ning Zhao State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems College of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouChina College of Life Sciences Qinghai Normal UniversityXiningChina College of Ecology Lanzhou UniversityLanzhouChina State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Chinese Research Academy of Environmental SciencesBeijingChina State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijingChina

Alpine plants possess unique traits to adapt alpine *** leaf trait relationships of alpine plants can be captured by the two trait dimensions of organ size and resource economics is *** hypothesized that,beyond the trait dimensions of leaf size and resource economics,nonstructured carbohydrates(NSC)would reflect a dimension of cold-tolerance in alpine *** test this hypothesis,we measured 12 leaf traits critical to leaf construction and growth in 143 species across 7 sites ranging from alpine steppes to alpine meadows along an environmental gradient on the Tibetan ***,a cold resistance experiment was conducted at one of these sites to estimate the lethal temperature causing 50%frost damage(LT_(50))of 11 alpine *** majority of variations in 12 leaf traits of alpine plants were captured by three trait axes,in which leaf carbon(LCC)and NSC(including leaf starch;LSC and leaf soluble sugars;LSS)were clustered in a new dimension(PC3)beyond leaf size and structure,and resource *** LCC,LSC and LSS all showed negative correlations with mean annual temperature,a significant negative correlation was only found between LSS and LT_(50).It indicated that PC3 was able to reflect the cold-tolerance of alpine plants to some extent,in which LSS was the most critical *** storage and transformation of NSC under stressful conditions could reflect a dimension of long-term metabolic adaptation and cold-tolerance,which is an extension of the resource-utilization strategy beyond construction cost and growth.

关键词： Non-structured carbohydrates Resource economics Stress resistance Trait relationships The lethal temperature causing 50%frost damage(LT50)

来源：评论

学校读者我要写书评

暂无评论

Full-scale studies are closer to reality than lab-scale ones: Tertiary treatment constructed wetlands maintain robust removal capability for pharmaceuticals and personal care products in cold weather conditions

引用

Bioresource Technology 2025年 432卷 132661页

作者： Wang, Jiaxi Ye, Beibei Yu, Xia Yan, Ruiqi Lin, Hui Man, Ying Sui, Qian State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process School of Resources and Environmental Engineering East China University of Science and Technology Shanghai200237 China Beijing100015 China School of Chemistry and Environment Guangdong Ocean University Zhanjiang524088 China Shanghai Institute of Pollution Control and Ecological Security Shanghai200092 China

In contrast to previous lab-scale studies, full-scale studies show that low temperatures do not significantly hinder pharmaceutical and personal care product (PPCP) removal in tertiary treatment constructed wetland (CW) systems. This study investigated PPCP removal pathways (substrate adsorption, plant uptake, microbial degradation) in two full-scale CWs, highlighting the differences between full-scale and lab-scale study outcomes. Results demonstrated that low temperatures did not adversely affect PPCP removal in full-scale CWs. Substrate adsorption was minimally impacted at a relevant concentration of 100 ng/L, unlike lab-scale studies with typically higher concentrations (1 mg/L). Plant uptake was not affected, as mature plants in CWs exhibited a lower PPCP uptake capacity compared to seedlings in lab-scale studies. Furthermore, low temperatures did not reduce microbial biodegradation performance. However, low temperatures increased dissolved oxygen concentrations in the influent, supporting aerobic microbial activity. These findings emphasize the value of full-scale CWs for stable PPCP removal under low-temperature conditions. © 2025

关键词： Inclusions

来源：评论

学校读者我要写书评

暂无评论

Numerical study of the separation performance of granular sludge and activated sludge in gravity-driven cyclonic field

引用

Journal of Water process Engineering 2025年 74卷

作者： Huang, Fei Zhang, Yuantao Tian, Jinyi State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery East China University of Science and Technology Shanghai 200237 China State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process East China University of Science and Technology Shanghai 200237 China

The cultivation of aerobic granular sludge (AGS) in a continuous flow process requires an external granular sludge and flocculent activated sludge separator to return the faster settling granular sludge. Experimental studies have confirmed that hydrocyclones are an effective solution for this purpose. This study employed CFD numerical simulations to investigate the operational performance of hydrocyclones at different installation angles. Furthermore, it explored the principles of gravity-driven hydrocyclone-enhanced separation of granular sludge and activated sludge, as well as the hydrocyclone-promoted granulation. The split ratio and separation efficiency are generally proportional to the installation angle, with the optimal angle range identified as −15°~15°. Activated sludge shows a better flow separability with low velocity fluctuations, whereas granular sludge shows more pronounced velocity variations. The results indicate that the inclined gravity-driven hydrocyclone exhibit only a limited difference in separation performance between granular sludge and activated sludge. Therefore, the potential reason for the hydrocyclone-promoted granulation may not be the traditionally considered separative effect, but rather the particle motion induced by the hydraulic shear flow field. © 2025 Elsevier Ltd

关键词： Activated sludge Granular sludge Hydrocyclone Numerical simulation Separation performance

来源：评论

学校读者我要写书评

暂无评论

Biogeographic patterns of polyploid species for the angiosperm flora in China

引用

植物分类学报 2023年第5期61卷 776-789页

作者： Kai-Lai Wang Pu-Rong Deng Zhi Yao Jin-Yi Dong Zhi He Peng Yang Yong-Bo Liu State Key Laboratory of Environmental Criteria and Risk Assessment State Environmental Protection Key Laboratory of Regional Eco-process and Function AssessmentChinese Research Academy of Environmental Sciences8 DayangfangBeijing 100012China

Exploring the frequency and distribution pattern of polyploid species in geographic parameters is of significance in understanding the mechanisms of polyploid speciation and evolutionary drivers of *** here explored polyploid and paleopolyploid incidence frequency in a scale of 100×100 km grids in *** found 33％of angiosperm species are polyploidy in China,and 23％of polyploid *** China and eastern China showed a significantly different polyploid and paleopolyploid frequency,with an evolutionary cradle of polyploid angiosperms in the Qinghai-Tibetan *** species exhibited higher polyploid frequency but lower paleopolyploid frequency than woody species,indicating the former experienced more rapid differentiation and speciation than the *** results indicate that western China is an evolutionary cradle for polyploid angiosperms where harsh environment facilitates the establishment andsurvival of polyploids,while polyploid lineages tend to rediploidize to be diploids with sufficient time in suitable environment.

关键词： angiosperm flora biogeographic patterns plant speciation polyploid frequency polyploid survival index rediploidization

来源：评论

学校读者我要写书评

暂无评论

Simultaneous hydrogen production with photo reforming of lactic acid over MXene derived MoS_(2)/TiO_(2)/Ti_(3)C_(2)nanowires

引用

Chinese Journal of Catalysis 2025年第4期71卷 234-245页

作者： Seemal Mansoor Zixu Hu Yuxin Zhang Muhammad Tayyab Mazhar Khan Zeeshan Akmal Liang Zhou Juying Lei Muhammad Nasir Jinlong Zhang Key Laboratory for Advanced Materials Shanghai Engineering Research Center for Multi–media Environmental Catalysis and Resource UtilizationJoint International Research Laboratory of Precision Chemistry and Molecular EngineeringFeringa Nobel Prize Scientist Joint Research CenterSchool of Chemistry and Molecular EngineeringEast China University of Science&TechnologyShanghai 200237China National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical ProcessEast China University of Science and TechnologyShanghai 200237China State Key Laboratory of Urban Water Resource and Environment Harbin Institute of TechnologyHarbin 150090HeilongjiangChina Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China Institute of Materials Research Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055GuangdongChina COMSATS Univ Islamabad Interdisciplinary Res Ctr Biomed Mat IRCBMLahore CampusLahore 54000Pakistan

Developing efficient photocatalysts to address collaborative energy and environmental crises still faces significant *** this report,we present a highly efficient MXene–based photocatalyst,which is combined with MoS_(2)nano patches and TiO_(2)/Ti_(3)C_(2)(TTC)nanowires through hydrothermal *** all the composites tested,the optimized photocatalyst gave a remarkable H_(2)and revolving polylactic acid(PLA)into pyruvic acid(PA).Achieving a remarkable H_(2)evolution rate of 637.1 and 243.2μmol g^(−1)h^(−1),in the presence of TEOA and PLA as a sacrificial reagent under UV-vis(λ≥365 nm)light *** improved photocatalytic activity is a result of the combination of dual cocatalyst on the surface of TTC photocatalyst,which create an ideal synergistic effect for the generation of PA and the production of H_(2)*** MoS_(2)TiO_(2)/Ti_(3)C_(2)(MTT)composite can generate more photoexcited charge carriers,leading to the generation of more active radicals,which may enhance the system's photocatalytic *** work aims at demonstrating its future significance and guide the scientific community towards a more efficient approach to commercializing H_(2)through photocatalysis.

关键词： Photo reforming Polylactic acid Hydrogen evolution Lactic acid Pyruvic acid

来源：评论

学校读者我要写书评

暂无评论

Heteroaggregation and sedimentation of natural goethite and artificial Fe3O4 nanoparticles with polystyrene nanoplastics in water

引用

Carbon Research 2024年第1期3卷 1-18页

作者： Wu, Aiming Yang, Chunyan Zhao, Xiaoli Wang, Junyu Liang, Weigang Wang, Xia Zhou, Lingfeng Teng, Miaomiao Hou, Guoqing Niu, Lin Tang, Zhi Wu, Fengchang State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Beijing100012 China State Environment Protection Key Laboratory of Regional Eco-Process and Function Assessment Chinese Research Academy of Environmental Sciences Beijing100012 China Lijiang Ecology Environment Bureau Gucheng Branch Lijiang674100 China

Iron oxide nanomaterials play important roles in biogeochemical processes. This study investigates the effects of representative natural carbonaceous materials (humic acid [HA] and extracellular polymeric substances [EPS]) and cations on the heteroaggregation and sedimentation of engineered and natural iron oxide nanomaterials with montmorillonite and sulfate- and amine-modified polystyrene (PS) nanoparticles (NPs) (S- and N-PS NPs, respectively) in water, assessing their environmental behavior and differences in colloidal stability parameters. In addition, a novel extended Derjaguin–Landau–Verwey–Overbeek theory (XDLVO) was developed to describe the mechanism of colloidal behavior that concurrently considers gravitational and magnetic attraction forces. In CaCl2 solution and most natural water samples, negatively charged S-PS NPs promoted heteroaggregation with goethite and iron oxide (Fe3O4) NPs more than positively charged N-PS NPs with increased nanoplastic particle concentration. In seawater, the introduction of S- and N-PS NPs increased the maximum net energy (barrier) (ΦMAX) of heteroaggregation and sedimentation with goethite and Fe3O4 NPs, facilitating dispersal and suspension of the system. The X-ray photoelectron spectroscopy (XPS) and molecular dynamics simulation results suggested that Ca2+ forms bridging interactions between Fe3O4 and S-PS NPs to promote aggregation, while competitive adsorption occurs between the N atoms of N-PS NPs and Ca2+ on the surface of Fe3O4 NPs. The study findings will help to improve the understanding of interfacial processes affecting ions at nanomaterial/water interfaces and assessments of the geochemical behavior and ecological risks of nanoplastics. © The Author(s) 2024.

关键词： Suspended sediments

来源：评论

学校读者我要写书评

暂无评论

Biodiversity conservation in China:A review of recent studies and practices

引用

environmental Science and Ecotechnology 2020年第2期2卷 30-39页

作者： Wei Wang Chunting Feng Fangzheng Liu Junsheng Li State Key Laboratory of Environmental Criteria and Risk Assessment State Environmental Protection Key Laboratory of Regional Eco-process and Function AssessmentChinese Research Academy of Environmental SciencesBeijing100012China Biodiversity Research Center Chinese Research Academy of Environmental SciencesBeijing100012China

Biodiversity conservation plays an important role in the sustainable development of human *** had made significant progress in biodiversity conservation studies and *** paper reviews major achievements in China in the past decades,especially those since *** terms of the science behind biodiversity conservation,Chinese scholars have made significant contributions to priority research subjects,including mechanisms for maintaining biological communities and the relationship between biodiversity and ecosystem ***,biodiversity conservation and management systems specific to China have been basically *** Chinese Government and researchers have undertaken a number of investigations,scientific studies,and monitoring,and have established relevant *** efforts taken to protect and restore biodiversity and ecosystems,the concept of biodiversity has gradually become popular in *** review is an attempt to share with the world the learning from China’s progress towards becoming an ecological civilization and highlights that the efforts towards biodiversity conservation need to be organically integrated with sustainable development goals.

关键词： Ecological civilization Mainstreaming Mobile supervising system Sustainable development Protected areas

来源：评论

学校读者我要写书评

暂无评论

Ecological pressures on grassland ecosystems and their conservation strategies in Northern China

引用

Chinese Journal of Population,Resources and environment 2015年第1期13卷 87-91页

作者： Zhirong Zheng Chaoyang Feng Shengxing Ye Zhaoyan Diao Shihai Lü Department of Plant Biology and Ecology College of Life ScienceNankai University State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment State Key Laboratory of Environmental Criteria and Risk AssessmentChinese Research Academy of Environmental Sciences(CRAES)

In this study,we identified ecological pressures on grassland ecosystems and adaptive countermeasures in Northern *** research revealed that the main sources of these pressures included population growth,economic development,resources exploitation,and global climate change,with human-related activities being overriding *** was an important reason for grassland imbalance,causing soil erosion and desertification,especially during the sensitive spring greening *** steppe zones,commercial coal mining was destructive to the ecological *** long-term strategies,we recommend that policy-makers devote more consideration to a new conceptual approach for transforming grasslands through shifting the focus from die grassland's traditional production functions to meir ecological *** this concept,adaptive countermeasures should be developed to reduce human impacts based on the environmental capacities of ***,we recommend the development of environment-friendly industries and reduction of pressures from human activities as effective measures for maintaining the balance between sustainable economic development and grassland ***,we suggest that restoration of degraded grasslands should conform to the principle of natural vegetation to further improve the ecological adaptability of plants and ecosystem *** study is expected to provide scientific support for policy-makers engaged in grassland protection.

关键词： grassland ecosystems ecological pressure Northern China conservation strategy

来源：评论

学校读者我要写书评

暂无评论

Removal of pharmaceutical and personal care products by sequential ultraviolet and ozonation process in a full-scale wastewater treatment plant

引用

Frontiers of environmental Science & Engineering 2014年第1期8卷 62-68页

作者： Qian SU Jun HUANG Shuguang LU Shubo DENG Bin WANG Wentao ZHAO Zhaofu QIU Gang YU State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process School of Resources and Environmental Engineering East China University of Science and Technology Shanghai 200237 China School of Environment THU - VEOLIA Joint Research Center for Advanced Environmental Tec'hnolo~y Tsinghua'University Beijing 100084 China State Key Laboratory of Pollution Control and Resource Reuse Tongji University Shanghai 200092 China State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (MARC) Tsinghua University Beijing 10084 China

The application of appropriate advanced treat- ment process in the municipal wastewater treatment plants （WWTPs） has become an important issue considering the elimination of emerging contaminants, such as pharma- ceutical and personal care products （PPCPs）. In the present study, the removal of 13 PPCPs belonging to different therapeutic classes by the sequential ultraviolet （UV） and ozonation process in a full-scale WWTP in Beijing was investigated over the course of ten months. Most of the target PPCPs were effectively removed, and the median removal efficiencies of individual PPCPs, ranging from -13% to 89%, were dependent on their reaction rate constants with molecular ozone. Noticeable fluctuation in the removal efficiencies of the same PPCPs was observed in different sampling campaigns. Nevertheless, the sequential UV and ozonation process still made a significant contribution to the total elimination of most PPCPs in the full-scale WWTP, by compensating for the poor or fluctuant removal performance of PPCPs by biologic treatment process.

关键词： PPCPs advanced treatment ozone fluctua-tion removal contribution

来源：评论

学校读者我要写书评

暂无评论

A New Brown Frog of the Genus Rana(Anura,Ranidae)from North China,with a Taxonomic Revision of the *** Species Group

引用

Asian Herpetological Research 2022年第3期13卷 145-158页

作者： Huijun SHEN Mengyu XU Xinyue YANG Zhuo CHEN Nengwen XIAO Xiaohong CHEN College of Life Sciences Henan Normal UniversityXinxiang 453007HenanChina The Observation and Research Field Station of Taihang Mountain Forest Ecosystems of Henan Province Xinxiang 453007HenanChina State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China

The Rana chensinensis species group is widely distributed throughout North ***,its taxonomy and composition remain *** recent field investigations of the Taihang Mountains,a series of Rana specimens were collected,which were once identified as ***,these samples showed significant differences from *** of the type locality(Shaanxi Province in the Qinling Mountains)in both morphology and *** this paper,based on analyses of seventeen geographic populations from the Taihang and Qinling Mountains,we describe a new species(namely *** ***.)in the *** species group.A phylogenetic analysis of the *** species group based on mitochondrial genes—COI,16S rRNA and Cytb—revealed the monophyly of the cryptic species,which formed the sister taxon to *** comparisons indicated that the cryptic species can be distinguished from its congeners by a combination of ***,the distribution patterns of the Rana species in North China were *** populations of the southwestern Taihang Mountains,Xiaoqinling Mountains,and Funiu Mountains in Henan Province remain ***,whereas the populations recorded as *** in Beijing City,Hebei Province,and the southeastern Taihang Mountains of Henan Province should be revised as *** ***.

关键词： morphology phylogeny Rana taihangensis sp.nov Rana chensinensis species group taxonomic revision

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：