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Effects of drought and heat on the productivity and photosynthetic characteristics of alpine meadow plants on the Qinghai-Tibetan Plateau

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Journal of Mountain Science 2021年第8期18卷 2079-2093页

作者： MA Li ZHANG Zhong-hua YAO Bu-qing MA Zhen HUANG Xiao-tao Zhou Bing-rong xu man-hou GUO Jing Zhou Hua-kun Key Laboratory of Restoration Ecology of Cold Area in Qinghai Province Northwest Institute of Plateau BiologyChinese Academy of SciencesXining810008China The Qinghai Institute of Meteorological Science Xining810001China Taiyuan Normal University Jinzhong030619China University of Chinese Academy of Sciences Beijing100049China Qinghai Academy of Social Sciences Xining810000China

Alpine meadow plants,adapted to humid and cold environments,are highly sensitive to environmental factors such as drought and ***,the physiological responses of individual alpine meadow species to drought and heat stress remain *** this study,four representative species of typical functional groups in an alpine meadow of the Qinghai-Tibet Plateau were selected as experimental ***(H1,H2),drought(D1,D2),and combined stress(D1H1,D2H2)treatments were implemented to reveal the biomass and physiological characteristics’response to a constant drought and heat *** results showed that the leaf water content(LWC)of Kobresia humilis and Poa annua increased significantly under heat stress and the compound stress(P<0.05).The effect of a single factor on LWC was greater than that of multiple *** aboveground biomass(AGB)of Oxytropis ochrocephala and Saussurea pulchra decreased significantly under compound stress(P<0.05).The response patterns of the net photosynthetic rate(Pn)and transpiration rate(Tr)of *** and *** under various stress treatments were similar;as were those of *** and *** stomatal conductance(Gs)variation in ***,***,***,and *** were the same under three kinds of stress *** photosynthetic characteristics were more sensitive to the effects of composite than those of single *** drought×heat×species treatment had a significant influence on various indexes except on height(Ht)and the belowground biomass(BGB)(P<0.01).Within a certain range,daytime temperature(DT)promoted the Ht and increased the LWC of the plants,while it inhibited their AGB and intercellular CO2 concentration(Ci).The Pn,Tr,and Gs were more sensitive to soil moisture than to *** results help improve understanding of the physiological response regularity of representative alpine meadow plant species to continuous drought and high temperature conditions at the species level,and pro

关键词： Alpine meadow Drought stress Heat stress Productivity Photosynthetic characteristics

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Boosting Photocatalytic Performance of Cu-Mn Co-doped CeO_(2) Nanoparticles for Tetracycline Degradation

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 42-48页

作者： xu Rongqi MI Jianxin WANG Shulin xu man ZHU Li BAI Lei TANG Dandan LEI Yu Engineering Research Center of Environmental Materials and Membrane Technology of Hubei Province School of Materials Science and EngineeringWuhan Institute of TechnologyWuhan 430205China Shaanxi Coal Chemical Industry Technology Research Institute Co. Ltd.Xi’an 710100China

Cu-Mn co-doped CeO_(2) photocatalyst was successfully synthesized by the sol-gel method to assess its capability in degrading *** and TEM results showed that Cu and Mn were successfully co-doped into CeO_(2) without forming heterostructure,XPS and photoelectrochemical results revealed that Mn ions doping amplified the generation of photo-induced charge carriers,while Cu ions doping significantly facilitated the interfacial charge transfer ***,the optimized Cu3Mn2CeO_(2) nanoparticles exhibited the highest TC removal efficiency,achieved a rate of 78.18%and maintained a stable cycling performance.

关键词： photocatalyst co-doped charge separation water treatment

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Multi-model ensemble learning for battery state-of-health estimation:Recent advances and perspectives

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Journal of Energy Chemistry 2025年第1期100卷 739-759页

作者： Chuanping Lin Jun xu Delong Jiang Jiayang hou Ying Liang Zhongyue Zou xuesong Mei State Key Laboratory for manufacturing Systems Engineering Xi'an Jiaotong University Shaanxi Key Laboratory of Intelligent Robots School of Mechanical Engineering Xi'an Jiaotong University Department of Electrical Engineering and Automation Luoyang Institute of Science and Technology School of Mechanical Engineering Hangzhou Dianzi University

The burgeoning market for lithium-ion batteries has stimulated a growing need for more reliable battery performance monitoring. Accurate state-of-health(SOH) estimation is critical for ensuring battery operational performance. Despite numerous data-driven methods reported in existing research for battery SOH estimation, these methods often exhibit inconsistent performance across different application scenarios. To address this issue and overcome the performance limitations of individual data-driven models,integrating multiple models for SOH estimation has received considerable attention. Ensemble learning(EL) typically leverages the strengths of multiple base models to achieve more robust and accurate outputs. However, the lack of a clear review of current research hinders the further development of ensemble methods in SOH estimation. Therefore, this paper comprehensively reviews multi-model ensemble learning methods for battery SOH estimation. First, existing ensemble methods are systematically categorized into 6 classes based on their combination strategies. Different realizations and underlying connections are meticulously analyzed for each category of EL methods, highlighting distinctions, innovations, and typical applications. Subsequently, these ensemble methods are comprehensively compared in terms of base models, combination strategies, and publication trends. Evaluations across 6 dimensions underscore the outstanding performance of stacking-based ensemble methods. Following this, these ensemble methods are further inspected from the perspectives of weighted ensemble and diversity, aiming to inspire potential approaches for enhancing ensemble performance. Moreover, addressing challenges such as base model selection, measuring model robustness and uncertainty, and interpretability of ensemble models in practical applications is emphasized. Finally, future research prospects are outlined, specifically noting that deep learning ensemble is poised to advance ens

关键词： Contrastive Learning

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Inhibition of the cGAS–STING pathway:contributing to the treatment of cerebral ischemia-reperfusion injury

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Neural Regeneration Research 2025年第7期20卷 1900-1918页

作者： Hang Yang Yulei Xia Yue Ma Mingtong Gao Shuai hou Shanshan xu Yanqiang Wang School of Clinical Medicine Shandong Second Medical UniversityWeifangShandong ProvinceChina Department of Emergency The Affiliated Hospital of Weifang Medical UniversityWeifangShandong ProvinceChina Department of Neurology Ⅱ The Affiliated Hospital of Weifang Medical UniversityWeifangShandong ProvinceChina

The cGAS–STING pathway plays an important role in ischemia-reperfusion injury in the heart,liver,brain,and kidney,but its role and mechanisms in cerebral ischemia-reperfusion injury have not been systematically ***,we outline the components of the cGAS–STING pathway and then analyze its role in autophagy,ferroptosis,cellular pyroptosis,disequilibrium of calcium homeostasis,inflammatory responses,disruption of the blood–brain barrier,microglia transformation,and complement system activation following cerebral ischemia-reperfusion *** further analyze the value of cGAS–STING pathway inhibitors in the treatment of cerebral ischemia-reperfusion injury and conclude that the pathway can regulate cerebral ischemia-reperfusion injury through multiple *** of the cGAS–STING pathway may be helpful in the treatment of cerebral ischemia-reperfusion injury.

关键词： calcium homeostasis cellular autophagy cerebral ischemia-reperfusion injury cGAS–STING pathway ferroptosis gut–brain–microbiota axis inflammatory light chain 3 microglial cells Syntaxin-17 protein

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山西吕梁山连片特困区现代农业发展水平综合评价

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中国人口·资源与环境 2018年第S1期28卷 54-59页

作者：冀钦杨建平徐满厚中国科学院西北生态环境资源研究院冰冻圈科学国家重点实验室甘肃兰州730000 中国科学院大学北京100049 太原师范学院地理科学学院山西晋中030619

运用AHP和多目标线性加权函数法相结合的方法建立评价模型,综合评价山西省吕梁山连片特困区现代农业发展水平。结果表明:(1)连片特困区整体而言,农业现代化程度低,处于发展起步阶段,农业生产条件、农业生产结果与农民生活水平的现代化... 详细信息

运用AHP和多目标线性加权函数法相结合的方法建立评价模型,综合评价山西省吕梁山连片特困区现代农业发展水平。结果表明:(1)连片特困区整体而言,农业现代化程度低,处于发展起步阶段,农业生产条件、农业生产结果与农民生活水平的现代化程度依次降低;市域层面,3市农业现代化程度均不高,为忻州市&临汾市&吕梁市;县域层面,农业现代化程度差异较大,忻州市各县位于起步阶段高级亚阶段,吕梁市各县位于起步阶段低级亚阶段。县域农业现代化程度整体呈现中间低、南北部较高的空间格局;(2)农业生产条件、生产结果与农民生活水平对现代农业的贡献分别为16.4%、29.7%和53.9%。农业电气化与机械化水平低、生产条件落后是现代农业发展的瓶颈。落后的农业生产条件导致生产结果效率低下,农民可支配收入低,农民生活水平低是该区现代农业发展迟缓的根源。

关键词：现代农业现代化程度吕梁山连片特困区山西省

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Interfacial Zn2+-solvation regulator towards reversible and stable Zn anode

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Journal of Energy Chemistry 2025年第1期100卷 684-692页

作者： Miao Zhou Xiongbin Luo Hang Li Shan Guo Zhuang Tong Xiaotao Zhou xu Li Zhaohui hou Shuquan Liang Guozhao Fang College of Mechanical Engineering Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials Hunan Institute of Science and Technology School of Materials Science and Engineering Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province Central South University College of Materials and Metallurgy Guizhou University National Energy Metal Resources and New Materials Key Laboratory Central South University

Aqueous zinc-ion batteries （AZIBs） are fundamentally challenged by the instability of the electrode/electrolyte interface,predominantly due to irreversible zinc （Zn） deposition and hydrogen ***,the intricate mechanisms behind the electrochemical discrepancies induced by interfacial Zn2+-solvation and deposition behavior demand comprehensive *** molecules endowed with special functional groups （such as hydroxyl,carboxyl,etc.） have the potential to significantly optimize the solvation structure of Zn2+and regulate the interfacial electric double layer （EDL）.By increasing nucleation overpotential and decreasing interfacial free energy,these functional groups facilitate a lower critical nucleation radius,thereby forming an asymptotic nucleation model to promote uniform Zn ***,this study presents a pioneering approach by introducing trace amounts of n-butanol as solvation regulators to engineer the homogenized Zn （H-Zn） anode with a uniform and dense *** interfacial reaction and structure evolution are explored by in/ex-situ experimental techniques,indicating that the H-Zn anode exhibits dendrite-free growth,no by-products,and weak hydrogen evolution,in sharp contrast to the bare ***,the H-Zn anode achieves a remarkable Zn utilization rate of approximately 20% and simultaneously sustains a prolonged cycle life exceeding 500 ***,the H-Zn//NH4V4O10（NVO） full battery showcases exceptional cycle stability,retaining 95.04%capacity retention after 400 cycles at a large current density of 5 A *** study enlightens solvation-regulated additives to develop Zn anode with superior utilization efficiency and extended operational lifespan.

关键词： Solvation

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高寒草甸植被-土壤系统对气候变暖响应的研究进展

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生态学杂志 2017年第6期36卷 1708-1717页

作者：马丽徐满厚翟大彤贾燕燕太原师范学院地理科学学院山西晋中030600 大同大学山西大同037009

低温限制环境下发育的高寒草甸对气候变暖响应极为敏感,因此,研究高寒草甸响应气候变暖特征对预测未来气候变化下高寒生态系统可能产生的变化具有重要意义。为进一步加深高寒生态系统响应气候变暖机制的理解,从植物个体水平、群落水平特... 详细信息

低温限制环境下发育的高寒草甸对气候变暖响应极为敏感,因此,研究高寒草甸响应气候变暖特征对预测未来气候变化下高寒生态系统可能产生的变化具有重要意义。为进一步加深高寒生态系统响应气候变暖机制的理解,从植物个体水平、群落水平特征,以及土壤物理、化学、生物特性等方面,综述了气候变暖对高寒草甸植被-土壤系统的影响,并指出现有研究存在的不确定性,同时对今后的工作做了展望。温度升高促进高寒草甸植物生长发育。在适度增温下植物的光合呼吸、生物量、物种多样性有所增加,然而不同植物种类具有不同的生理结构和生态位,加之增温幅度和时间不同,导致植物光合呼吸强度、生物量分配、物候期出现差异;而温度过度升高则会导致高寒草甸物种趋于单一化,引起物种多样性降低,对群落演替产生重要影响。同时,温度升高增加高寒草甸土壤温度,减少土壤含水量,从而导致土壤有机碳含量降低或增加。在短期增温下,土壤碳和酶活性升高,土壤呼吸速率增加;但随着时间延长,土壤呼吸速率不再增加,表现出对增温的适应性。因此,高寒草甸生态系统不同组分和各生命过程对温度响应模式的差异,导致了气候变暖对高寒草甸植被-土壤系统各组分的影响存在很大不确定性,建议深入开展不同增温幅度和时间下高寒草甸植被-土壤系统各组分正负效应的定量化阈值判断及其生态-分子生物学响应机制研究。

关键词：气候变暖高寒草甸植被土壤

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短期增温下青藏高原多年冻土区植物生长季土壤水分的动态变化

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干旱区研究 2019年第3期36卷 537-545页

作者：李艳萍史利江徐满厚李文刚太原师范学院地理科学学院山西晋中030619 山西财经大学资源环境学院山西太原030006 山西省农业科学院农业资源与经济研究所山西太原030006

以青藏高原腹地典型高寒草甸植被类型为研究对象,采用红外灯加热的方法模拟全球增温,并利用水分探头,于2012年植物生长季(5—9月)获取0～100 cm不同土层深度土壤水分含量数据,并分析其对增温的响应。结果表明:(1)短期增温对高寒草甸土... 详细信息

以青藏高原腹地典型高寒草甸植被类型为研究对象,采用红外灯加热的方法模拟全球增温,并利用水分探头,于2012年植物生长季(5—9月)获取0～100 cm不同土层深度土壤水分含量数据,并分析其对增温的响应。结果表明:(1)短期增温对高寒草甸土壤水分含量有提高作用,但增幅并不显著(P> 0. 05),平均提高2. 85%。(2)土壤水分含量随土层深度的增加呈现先减少后增加的趋势,在10～20 cm土层深度处降为最低值13. 8%,在60～100cm土层深度附近达到了20. 57%的最高值;对照组5个月10～20 cm土层深度的土壤水分含量显著低于其他土层,而增温组0～20 cm土层深度的土壤含水量显著低于其他土层深度,表明增温对表层(0～10 cm)的土壤含水量影响较大,对深层土壤含水量的影响则较小,而且短期增温不会对土壤水分的垂直分布趋势产生影响。(3)土壤水分含量随时间的变化,在5—8月呈上升趋势,表明在青藏高原北麓河地区植物生长季,8月是其土壤水分含量最充足的月份,到了9月土壤中含水量开始降低,但5个土层深度降幅均不明显;增温组土壤水分含量随时间的变化趋势与对照组基本一致。

关键词：土壤水分高寒草甸模拟增温植物生长季多年冻土青藏高原

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Establishing a new testing protocol of the electrochemical stability window for electric double-layer capacitors

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Science China Chemistry 2025年第01期 217-225页

作者： Ruilin hou Xiaoxi Zhao Tingting Liang Qingyun Dou Shan xu Xingbin Yan School of Materials Science and Engineering Sun Yat-sen University Laboratory of Clean Energy Chemistry and Materials Lanzhou Institute of Chemical Physics Chinese Academy of Sciences College of Engineering and Applied Sciences Nanjing University Center of Industrial Analysis and Testing Guangdong Academy of Science

The electrochemical stability window(ESW) is crucial for determining the energy density of electric double-layer capacitors(EDLCs). However, current ESW testing protocols of EDLCs are strongly affected by artificial factors, thereby leading to unreliable result. To solve this problem, we first identify the key shortcomings of the traditional protocols by analyzing their test principles. Subsequently, taking an aqueous carbon-based EDLC as an example, we design a side reaction descriptor to represent the response difference in the charging capacitance to side reactions between the cyclic voltammetry and galvanostatic chargedischarge methods. With the aid of this descriptor, we propose a new ESW testing protocol, which is not only able to completely avoid the adverse influence of subjective factors but also fully consider the operating condition limitations. The protocol can be extended from the single electrode to the full device. This work proposes a more rigorous definition of ESW and provides a reliable protocol for evaluating the ESW of EDLCs.

关键词：

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吕梁关帝山不同植被坡面土壤优先流特征及其影响因素

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生态学杂志 2021年第12期40卷 3890-3900页

作者：程竞锋闫加亮徐满厚张宝贵太原师范学院地理科学学院山西晋中030619

土壤优先流对坡面产流和流域水循环具有重要影响,研究坡面优先流的特征及其影响因素对理解坡面优先流的产生机理有重要意义。本研究以关帝山针阔混交林、针叶林和灌丛3种植被为对象,采用野外亮蓝示踪实验和室内图像解析技术,揭示不同植... 详细信息

土壤优先流对坡面产流和流域水循环具有重要影响,研究坡面优先流的特征及其影响因素对理解坡面优先流的产生机理有重要意义。本研究以关帝山针阔混交林、针叶林和灌丛3种植被为对象,采用野外亮蓝示踪实验和室内图像解析技术,揭示不同植被类型、不同坡位点处土壤优先流在垂直和水平方向的空间异质性,并分析土壤理化性质对其影响。结果表明:1)针阔混交林和灌丛覆盖下土壤优先流垂直发育程度坡上>坡下>坡中,而针叶林优先流垂直发育程度则随坡位上升而减小。2)针叶林和灌丛水平染色路径以>10mm为主,且针叶林总染色路径数量随坡位的上升先增大后减小,而灌丛则随坡位的上升而下降。3)电导率、有机质、坡度、黏粒含量是影响垂直剖面优先流特征的主要因素,而有机质、砂粒和粉砂含量、坡度则是影响水平剖面染色特征的主要因素。本研究揭示了坡位和植被类型是如何通过影响土壤理化性质,进而对坡面土壤优先流发生和发育产生重要影响,丰富了对坡面土壤优先流特征及机理的认识。

关键词：坡面优先流染色示踪染色特征

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