检索结果-内蒙古大学图书馆

中国碳收支:1980~2021年

Science Bulletin 2024年第1期69卷 114-124页

作者：夏晓圣任培阳王旭辉刘丹陈修治丹利何斌何洪林居为民梁敏琪陆星劼彭静覃章才夏江周郑博魏静乐旭于贵瑞朴世龙袁文平 School of Atmospheric Sciences Guangdong Province Data Center of Terrestrial and Marine Ecosystems Carbon CycleSun Yat-sen UniversityZhuhai 510245China Sino-French Institute for Earth System Science College of Urban and Environmental SciencesPeking UniversityBeijing 100091China State Key Laboratory of Tibetan Plateau Earth System Resources and EnvironmentInstitute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China Key Laboratory of Regional Climate-Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China State Key Laboratory of Earth Surface Processes and Resource Ecology College of Global Change and Earth System ScienceBeijing Normal UniversityBeijing 100875China Synthesis Research Center of China’s Ecosystem Research Network Key Laboratory of Ecosystem Network Observation and ModelingInstitute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China International Institute for Earth System Science Nanjing UniversityNanjing 210023China Tianjin Key Laboratory of Water Resources and Environment Tianjin Normal UniversityTianjin 300387China Institute of Environment and Ecology Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055China Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Collaborative Innovation Center of Atmospheric Environment and Equipment TechnologySchool of Environmental Science and EngineeringNanjing University of Information Science&TechnologyNanjing 210044China

As one of the world's largest emitters of greenhouse gases,China has set itself the ambitious goal of achieving carbon peaking and carbon ***,it is crucial to quantify the magnitude and trend of sources and sinks of atmospheric carbon dioxide(CO_(2)),and to monitor China's progress toward these *** state-of-the-art datasets and models,this study comprehensively estimated the anthropogenic CO_(2)emissions from energy,industrial processes and product use,and waste along with natural sources and sinks of CO_(2)for all of China during *** recognize the differences among various methods of estimating greenhouse emissions,the estimates are compared with China's National Greenhouse Gas Inventories(NGHGIs)for 1994,2005,2010,2012,and *** CO_(2)emissions in China have increased by 7.39 times from 1980 to 12.77 Gt CO_(2)a^(-1)in *** benefiting from ecological projects(e.g.,Three Norths Shelter Forest System Project),the land carbon sink in China has reached 1.65 Gt CO_(2)a^(-1)averaged through 2010-2021,which is almost 15.81 times that of the carbon sink in the *** average,China's terrestrial ecosystems offset 14.69%±2.49%of anthropogenic CO_(2)emissions through *** provincial-level administrative regions of China,Xizang and Qinghai,have achieved carbon neutrality according to our estimates,but nearly half of the administrative regions of China have terrestrial carbon sink offsets of less than 10%of anthropogenic CO_(2)*** study indicated a high level of consistency between NGHGIs and various datasets used for estimating fossil CO_(2)emissions,but found notable differences for land carbon *** estimates of the terrestrial carbon sinks of NGHGIs urgently need to be verified with process-based models which integrate the comprehensive carbon cycle processes.

关键词： CO_(2)emission Land carbon sink China Carbon neutrality Carbon budget

来源：评论

学校读者我要写书评

暂无评论

On the applicability of the‘humic acids’nomenclature from natural ecosystems to engineering sciences

引用

environmental Science and Ecotechnology 2021年第2期6卷 1-2页

作者： Xinyu Zhao Beidou Xi Wenbing Tan Xiang Li Qiuling Dang Renfei Li State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing100012China State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution Chinese Research Academy of Environmental SciencesBeijing100012China State Environmental ProSchool of Environment Tsinghua University Beijing100084China

‘Humic acids(HA)’are the major constituents of natural organic matter(NOM)derived from the plant or biological residues by decomposition and synthesis in natural *** have been defined as relatively high molecular weight aggregates of macromolecules associations with series of highly reactive functional compounds,and considered to be as irreplaceable roles(such as the impact on global carbon and nitrogen dynamics,atmosphere,living plants,chemically reactive and NOM structure stabilization)in natural ecosystems[1].

关键词： Humic acid Engineering sciences Natural ecosystems Alkaline extraction technique

来源：评论

学校读者我要写书评

暂无评论

Non-deterministic multi-level model for planning water-ecology nexus system under climate change

引用

Cell Reports Sustainability 2024年第3期1卷

作者： Ma, Yuan Li, Yongping Wang, Hao Zhang, Yufei Zhou, Yanxiao Huang, Guohe State Key Joint Laboratory of Environmental Simulation and Pollution Control School of Environment Beijing Normal University Beijing 100875 China Institute for Energy Environment and Sustainable Communities University of Regina Regina S4S 7H9 SK Canada

Water scarcity and ecological degradation impede sustainable development in Central Asia, which urgently calls for synergistic planning of water-ecology (WE) nexus system. However, existing management models may have large uncertainties, restricting their effectiveness. Here, we develop a copula-based flexible fuzzy multi-level programming (CFMP) method, which tackles uncertainties, such as water demands, and balances trade-offs among competing managers in top-down decision-making processes. Next, we formulate a CFMP-WE model for Central Asia (2021–2050), considering objectives of economic development, food security, and ecological restoration, and design 243 planning scenarios. We found that ecological water allocation would account for 5.9%–12.2% to support sustainable development;however, policymakers need to reduce agricultural water allocation, forgoing 7.8%–20.1% of the system benefit (i.e., economic benefit for WE nexus system). Agricultural water use would still be the largest (with 25.6%–29.4% for cereal crops to ensure food security), but its share would decline to conserve water for users like industry. © 2024 The Authors

关键词： Central Asia climate change copula-based programming multi-level programming multi-uncertainty sustainability water-ecology

来源：评论

学校读者我要写书评

暂无评论

Corrigendum to Metagenomic insights into the profile of antibiotic resistomes in sediments of aquaculture wastewater treatment system

引用

Journal of environmental Sciences 2023年第4期126卷 836-836页

作者： Jianfei Chen Yuyin Yang Xinshu Jiang Yanchu Ke Tao He Shuguang Xie State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and EngineeringPeking UniversityBeijing 100871China State Key Joint Laboratory of Environment Simulation and Pollution Control(SKJLESPC) Beijing Key Laboratory for Emerging Organic Contaminants Control(BKLEOC)School of EnvironmentPOPs Research CenterTsinghua UniversityBeijing 100084China South China Institute of Environmental Sciences(SCIES) Ministry of Ecology and Environment(MEE)Guangzhou 510655China

The authors regret<We found an error in Eq.(2)of ***.,2022,113,345-355(Ncell was obtained from the calculation of ARGs-OAP software,so it doesn’t affect the subsequent results).Eq.(2)is revised as follows(Yang et ... 详细信息

The authors regret

关键词： wastewater treatment revised

来源：评论

学校读者我要写书评

暂无评论

高效稳定钙钛矿太阳能电池中非晶和缺陷表面的重构

引用

Science China Materials 2023年第4期66卷 1323-1331页

作者：谢江生赵生合杭鹏杰陈甜温彬尹奇欣韦世宸朱升财余学功秦敏超路新慧严克友许建斌高平奇 School of Materials Shenzhen Campus of Sun Yat-sen UniversityShenzhen 518107China Institute for Solar Energy Systems Guangdong Provincial Key Laboratory of Photovoltaic TechnologyState Key Laboratory of Optoelectronic Materials and TechnologiesSun Yat-sen UniversityGuangzhou 510275China Department of Electronic Engineering The Chinese University of Hong KongHong Kong 999077China State Key Laboratory of Silicon Materials and School of Materials Science and Engineering Zhejiang UniversityHangzhou 310027China School of Environment and Energy State Key Laboratory of Luminescent Materials and Devicesand National Engineering Laboratory for VOCs Pollution Control Technology and EquipmentSouth China University of TechnologyGuangzhou 510006China Department of Physics The Chinese University of Hong KongHong Kong 999077China

钙钛矿太阳能电池的表界面性质是影响器件效率和稳定性的关键性因素.本文中,我们首次发现空穴传输层中的添加剂4-叔丁基吡啶(tBP)可以将钙钛矿非晶态和缺陷表面层进行重结晶,并且钝化晶粒表面的缺陷位点.该重构可使钙钛矿的表面功函数增... 详细信息

钙钛矿太阳能电池的表界面性质是影响器件效率和稳定性的关键性因素.本文中,我们首次发现空穴传输层中的添加剂4-叔丁基吡啶(tBP)可以将钙钛矿非晶态和缺陷表面层进行重结晶,并且钝化晶粒表面的缺陷位点.该重构可使钙钛矿的表面功函数增大,降低了钙钛矿与空穴传输层之间的界面能级失配,提高了器件的光电压.进一步地,我们通过化学键合强度设计,开发了更有效的空穴传输层添加剂4-叔丁基哌啶(tBPp),它比tBP具有与钙钛矿表面缺陷位点更强的相互作用.得益于吸附能的增强,经tBPp重构的钙钛矿表面缺陷态密度降低,且在热、光、湿度的作用下稳定性更好.基于tBPp作为添加剂的钙钛矿电池最高效率达到了24.2%.在氮气气氛中进行最大功率点跟踪测试,未封装的设备在连续光照超过1200小时后几乎可以保持其初始效率.本工作全面揭示了空穴传输层中添加剂对于钙钛矿电池的效率和稳定性的重要性,并提供了系统和基础性理解.

关键词：钙钛矿太阳能电池最大功率点跟踪缺陷态密度空穴传输层键合强度高效稳定叔丁基表面层

来源：评论

学校读者我要写书评

暂无评论

Nanoparticle Pre- or Co-Exposure Affects Bacterial Ingestion by the Protozoan Tetrahymena Thermophila

SSRN

引用

SSRN 2022年

作者： Guo, Wen-Bo Wu, Chao Yang, Liuyan Pan, Ke Miao, Ai-Jun State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Nanjing210023 China Institute for Advanced Study Shenzhen University Shenzhen518060 China

Although nanoparticles’ (NPs) toxicity has been intensively studied, their effects on bacterial ingestion by protozoans (as an important component of the microbial loop) is unknown. This study investigated the effects of NPs of different chemical composition [hematite (HemNPs), anatase (AnaNPs), and silica (SiNPs) NPs] and size [SiNPs with particle size of 20 (Si-20), 100 (Si-100), and 500 (Si-500) nm] on the ingestion of Escherichia coli by the protozoan Tetrahymena thermophila. Potential differences between pre- vs. co-exposure were also assessed. Pre-exposure to HemNPs had no effects on bacterial ingestion but the other NPs caused a significant inhibition, due to their inhibition of ATP synthesis and the down-regulation of phagocytosis-related genes (ACT1 and CTHB). Contrastively, co-exposure to HemNPs and Si-20 didn’t affect bacterial ingestion while co-exposure to AnaNPs (Si-100 and Si-500) induced (inhibited) ingestion. The stimulatory effect of AnaNPs was due to their induction of an increase in the intracellular Ca concentration of T. thermophila whereas the inhibitory effects of Si-100 and Si-500 were attributable to ATP synthesis reduction, enhanced bacterial cell aggregation, and competition between the bacterial cells and the NPs. These findings provide insights into the mechanisms underlying the environmental risks of NPs. © 2022, The Authors. All rights reserved.

关键词： Nanoparticles

来源：评论

学校读者我要写书评

暂无评论

Synergistic Effect of Novel Co-Modified Micro/Nano Geopolymers in a Photo-Pds System

SSRN

引用

SSRN 2022年

作者： Yang, Xiaohuan Ji, Zehua Wang, Kemeng Pei, Yuansheng State Key Laboratory of Water Environment Simulation Ministry of Education School of Environment Beijing Normal University Beijing100875 China The Key Laboratory of Water and Sediment Sciences Ministry of Education School of Environment Beijing Normal University Beijing100875 China Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing100084 China

Persulfate activation is an efficient advanced oxidation process for water treatment. However, many catalyst materials make their preparation methods and raw materials very complicated and expensive while pursuing high-efficiency catalytic effects. In this research, a novel Co-modified micro/nano geopolymer (Co-MNG) material was prepared from solid waste using a mechanochemical method. The whole preparation process of Co-MNG was simple and most of its raw materials were solid waste. In addition, it had few adverse effects on the environment during preparation and use and had an excellent effect on PDS activation. ESR (electron spin resonance) tests showed that the MNG materials with a Co loading of 4%wt could generate a variety of active radicals in a photo-PDS system, such as h+, ·OH, ·O2- and SO4-. Mechanistic investigation experiments showed that the material could effectively couple visible light and Co activation of PDS in the photo-PDS activation system to achieve synergistic degradation of pollutants in water. © 2022, The Authors. All rights reserved.

关键词： Magnetic moments

来源：评论

学校读者我要写书评

暂无评论

Artificial humic acid produced from wet distillers grains in a microwave-assisted hydrothermal process: Physicochemical characteristics and stimulation to plant growth

引用

Chemosphere 2024年 364卷 142979页

作者： Lei, Tianlong Su, Jie Chang, Luyi He, Rui Shan, Guangchun Jiang, Xiaomei Lei, Yunhui Guo, Xiaobo Biogas Institute of Ministry of Agriculture and Rural Affairs Chengdu610041 China Research Center for Rural Energy and Ecology Chinese Academy of Agricultural Science Chengdu610041 China Tarim Oilfield Company PetroChina Korla841000 China State Key Laboratory of Environmental Criteria and Risk Assessment and State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution Chinese Research Academy of Environmental Sciences Beijing100012 China State Key Laboratory of Urban Water Resource and Environment School of Environment Harbin Institute of Technology Harbin150090 China

Wet distillers grains, as a waste biomass with a large annual output, pose a threat to the environment and food industry. Herein, artificial humic acid (AHA) was first produced from wet distillers grains in a dual-stage microwave-assisted hydrothermal process. The influence of temperature on AHA's characteristics was investigated and compared with natural humic acid (NHA) and standard humic acid (SHA). A high yield of AHA at 20.6% was obtained at 200 °C with a total reaction time of 1 h, which is 1.8–3.1 times that obtained in traditional single-stage hydrothermal process. Increasing the reaction temperature induced the formation of phenolic hydroxyl in AHA. AHA was rich in aromaticity and carboxylic acid structure, showing similar spectral characteristics to NHA. The distribution of molecular weight of AHA was mostly 5797 Da, which decreased by 15% compared to SHA. The optimal concentration of AHA to promote seedling growth was 0.2 g/L, and the root length was 2.0 times that of the control. The microwave hydrothermal process is a facile and efficient approach to preparing AHA from waste biomass with high moisture content. © 2024 Elsevier Ltd

关键词： Microwave heating

来源：评论

学校读者我要写书评

暂无评论

中国钢铁行业减污降碳协同综合分析（英文）

引用

Engineering 2024年第9期 111-121页

作者：谭全银刘菲李金惠 State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University

Decarbonization and decontamination of the iron and steel industry（ISI）, which contributes up to 15% to anthropogenic CO2emissions（or carbon emissions） and significant proportions of air and water pollutant emissions in China, are challenged by the huge demand for steel. Carbon and pollutants often share common emission sources, indicating that emission reduction could be achieved synergistically. Here, we explored the inherent potential of measures to adjust feedstock composition and technological structure and to control the size of the ISI to achieve carbon emission reduction（CER） and pollution emission reduction（PER）. We investigated five typical pollutants in this study, namely, petroleum hydrocarbon pollutants and chemical oxygen demand in wastewater, particulate matter, SO2, and NOxin off gases,and examined synergies between CER and PER by employing cross elasticity for the period between 2022 and 2035. The results suggest that a reduction of 8.7%–11.7% in carbon emissions and 20%–31%in pollution emissions（except for particulate matter emissions） could be achieved by 2025 under a high steel scrap ratio（SSR） scenario. Here, the SSR and electric arc furnace（EAF） ratio serve critical roles in enhancing synergies between CER and PER（which vary with the type of pollutant）. However, subject to a limited volume of steel scrap, a focused increase in the EAF ratio with neglection of the available supply of steel scrap to EAF facilities would lead to an increase carbon and pollution emissions. Although CER can be achieved through SSR and EAF ratio optimization, only when the crude steel production growth rate remains below 2.2% can these optimization measures maintain the emissions in 2030 at a similar level to that in 2021. Therefore, the synergistic effects between PER and CER should be considered when formulating a development route for the ISI in the future.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Growth of BaTaO2N-BaNa0.25Ta0.75O3 Solid Solution Photocatalyst for Visible Light-Driven Z-Scheme Overall Water Splitting

引用

能源材料前沿（英文） 2023年第3期2023卷 185-192页

作者： Ying Luo Qiaoqi Guo Jun Xu Hanghang Zhou Zheng Wang Hong He State Key Joint Laboratory of Environment Simulation and Pollution Control Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China State Key Joint Laboratory of Environment Simulation and Pollution Control Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China

BaTaO2N with intense visible light absorption has been demonstrated as a promising photocatalyst for Z-scheme overall water splitting,whereas the photocatalytic activity of BaTaO2N is still restricted by strong charge recombination at structural ***,we present the direct growth of BaTaO2N-BaNa0.25Ta0.75O3 solid solution from a lattice-matched BaNa0.25Ta0.75O3 precursor through volatilization of Na species during a nitridation *** method promotes the direct phase transformation from BaNa0.25Ta0.75O3 to BaTaO2N to inhibit the formation of defect *** a result,the as-obtained BaTaO2N-BaNa0.25Ta0.75O3 solid solution shows greatly enhanced activity compared to the conventional BaTaO2N,regardless of photocatalytic H2 evolution in the presence of methanol or Z-scheme overall water *** study provides a facile method to construct(oxy)nitride-based solid solution photocatalysts with low defect density for efficient solar hydrogen production from water splitting.

关键词： z-scheme solution growth solid water bana batao light-driven overall photocatalyst

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：