检索结果-内蒙古大学图书馆

Enhanced dominance of soil moisture stress on vegetation growth in Eurasian drylands

National Science Review 2023年第8期10卷 135-147页

作者： Yu Zhang Yangjian Zhang Xu Lian Zhoutao Zheng Guang Zhao Tao Zhang Minjie Xu Ke Huang Ning Chen Ji Li Shilong Piao Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of Sciences College of Resources and Environment University of Chinese Academy of Sciences Sino-French Institute for Earth System Science College of Urban and Environmental Sciences Peking University Department of Earth and Environmental Engineering Columbia University College of Agronomy Shenyang Agricultural University Department of Geosciences and Natural Resource Management University of Copenhagen Key Laboratory of Wetland Ecology and Environment Northeast Institute of Geography and Agroecology Chinese Academy of Sciences Department of Geography School of Geography and Information EngineeringChina University of Geosciences State Key Laboratory of Tibetan Plateau Earth System Resources and Environment Institute of Tibetan Plateau ResearchChinese Academy of Sciences

Despite the mounting attention being paid to vegetation growth and their driving forces for water-limited ecosystems, the relative contributions of atmospheric and soil moisture dryness stress on vegetation growth are an ongoing debate. Here we comprehensively compare the impacts of high vapor pressure deficit(VPD) and low soil water content(SWC) on vegetation growth in Eurasian drylands during 1982–*** analysis indicates a gradual decoupling between atmospheric dryness and soil dryness over this period,as the former has expanded faster than the latter. Moreover, the VPD–SWC relation and VPD–greenness relation are both non-linear, while the SWC–greenness relation is near-linear. The loosened coupling between VPD and SWC, the non-linear correlations among VPD–SWC-greenness and the expanded area extent in which SWC acts as the dominant stress factor all provide compelling evidence that SWC is a more influential stressor than VPD on vegetation growth in Eurasian drylands. In addition, a set of 11 Earth system models projected a continuously growing constraint of SWC stress on vegetation growth towards 2100. Our results are vital to dryland ecosystems management and drought mitigation in Eurasia.

关键词： soil water content vapor pressure deficit vegetation growth decoupling non-linear relation

来源：评论

学校读者我要写书评

暂无评论

A bibliographic study reviewing the last decade of hydrochar in environmental application:history,status quo,and trending research paths

引用

Biochar 2023年第1期5卷 231-257页

作者： Junxia Huang Yanfang Feng Huifang Xie Ping Wu Minli Wang Bingyu Wang Qiang Zhang Shicheng Zhang Zhengang Liu Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse School of Environmental and Biological EngineeringNanjing University of Science and TechnologyNanjing 210094China Key Laboratory of Agro-Environment in Downstream of Yangtze Plain Ministry of Agriculture and Rural AffairsInstitute of Agricultural Resources and EnvironmentJiangsu Academy of Agricultural SciencesNanjing 210014China Centre for Agricultural Resources Research Institute of Genetics and Developmental BiologyChinese Academy of SciencesShijiazhuang 050021China Faculty of Civil Engineering and Mechanics Kunming University of Science and TechnologyKunming 650500China Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention(LAP3) Department of Environmental Science and EngineeringFudan UniversityShanghai 200433China Research Center for Eco-Environmental Sciences Chinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China

Hydrothermal carbonization(HTC)technology has increasingly been considered for biomass conversion applications because of its economic and environmental *** an HTC conversion product,hydrochar has been widely used in the agricultural and environmental fields for decades.A CiteSpace-based system analysis was used for conducting a bibliometric study to understand the state of hydrochar environmental application research from 2011 to *** had a basic understanding of hydrochar between 2011 and 2016 when they discovered hydrochar could apply to agricultural and environmental improvement *** clustering results of the literature published in 2017-2021 showed that soil quality and plant growth were the major research topics,followed by carbon capture and greenhouse gas emissions,organic pollutant removal,and heavy metal adsorption and its *** review also pointed out the challenge and perspective for hydrochar research and application,namely:(1)the environmental effects of hydrochar on soils need to be clarified in terms of the scope and conditions;(2)the influence of soil microorganisms needs to be investigated to illustrate the impact of hydrochar on greenhouse gas emissions;(3)combined heavy metal and organic contaminant sorption experiments for hydrochar need to be conducted for large-scale applications;(4)more research needs to be conducted to reveal the economic benefits of hydrochar and the coupling of hydrochar with anaerobic digestion *** review suggested that it would be valuable to create a database that contains detailed information on how hydrochar got from different sources,and different preparation conditions can be applied in the environmental field.

关键词： Hydrochar environmental applications Research hotspots Bibliometrics CiteSpace

来源：评论

学校读者我要写书评

暂无评论

Study on Spectral Inversion of Arsenic Content in Feed Based on Parallel Input Dilated Convolutional Architecture

Study on Spectral Inversion of Arsenic Content in Feed Based...

引用

2024 Academic Conference of China Instrument and Control Society, ACCIS 2024

作者： Yang, Bohan Gao, Yuan He, Zhixia Hua, Xufeng Qiao, Zhiyi Zhang, Dushun Tianjin Agricultural University College of Computer and Information Engineering Tianjin China Tianjin Agricultural University Tianjin Key Laboratory of Aqua-Ecology and Aquaculture Tianjin China Tianjin agricultural ecological environment monitoring and agricultural product quality testing center Pesticide and Veterinary Drug Testing Department Tianjin China Tianjin Key Laboratory of Aquatic Ecology and Aquaculture Tianjin Agricultural University College of Computer and Information Engineering Tianjin China Gansu Zhonghui Gaoxin Agricultural Development Co. Ltd. Lanzhou China

ISBN: (纸本)9798350350326

To extract useful information from near-infrared spectroscopy and establish a high-accuracy prediction model for arsenic content in feed ingredients, a parallel input-based dilated convolutional architecture model was constructed. Firstly, the model learns the characteristic differences under different spectral bands through the parallel input convolutional architecture. Then, dilated convolution is adopted as the convolutional operator, enabling the architecture to fully learn the long-range correlations in the spectral data. The experimental results on the prediction set show that the model achieves Rp 2= 0.93, RMSEp = 0.19, and PRDp = 3.81 for arsenic, demonstrating that the model can effectively predict the arsenic content in feed ingredients. © 2024 IEEE.

关键词： Near infrared spectroscopy

来源：评论

学校读者我要写书评

暂无评论

WC/Co_(7)Fe_(3)heterojunction embedded in N,P co-doped hierarchical carbon enables rechargeable/flexible Zn-air battery

引用

Nano Research 2023年第2期16卷 2519-2527页

作者： Huimin Mao Xiaobin Liu Siqi Wu Yixin Fu Guishan Liu Guizhong Zhou Lei Wang Key Laboratory of Eco-chemical Engineering International Science and Technology Cooperation Base of Eco-chemical Engineering and Green ManufacturingQingdao University of Science and TechnologyQingdao 266042China College of Environment and Safety Engineering Qingdao University of Science and TechnologyQingdao 266042China College of Chemistry and Molecular Engineering Qingdao University of Science and TechnologyQingdao 266042China Chaofeng Steel Structure Group Co. Ltd.Hangzhou 311215China

Rational design and synthesis of bifunctional oxygen electrocatalysts with high activity and stability are key challenges in the development of rechargeable Zn-air batteries(ZABs).In this paper,tungsten carbide(WC)and Co_(7)Fe_(3)embedded in N,P co-doped hierarchical carbon(WC/Co_(7)Fe_(3)-NPHC)was prepared by using zeolite imidazolate frameworks as *** functional theory demonstrates that the mutual adjustment among the WC,Co_(7)Fe_(3),and N,P co-doped carbon at the three-phase heterojunction interface makes the catalyst possess moderate adsorption strength,and greatly improves the conductivity and electron transfer rate of the *** a result,the WC/Co_(7)Fe_(3)-NPHC exhibits a low overall oxygen redox potential difference of 0.72 V,while the ZAB assembled by WC/Co_(7)Fe_(3)-NPHC as an air cathode exhibits ultra-long cycle stability of over 550 ***,WC/Co_(7)Fe_(3)-NPHC can keep good charge and discharge stability at different bending angles when applied to flexible solid ZAB.

关键词： heterojunction hierarchical structure bifunctional oxygen electrocatalyst Zn-air battery

来源：评论

学校读者我要写书评

暂无评论

Selenium and Bacillus proteolyticus SES increased Cu-Cd-Cr uptake by ryegrass: highlighting the significance of key taxa and soil enzyme activity

引用

environmental Science and Pollution Research 2024年第20期31卷 29113-29131页

作者： Zhang, Huan Nie, Min Du, Xiaoping Chen, Suhua Liu, Hanliang Wu, Chihhung Tang, Yanni Lei, Zheng Shi, Guangyu Zhao, Xiaohu College of Resources and Environment Huazhong Agricultural University / Research Center of Trace Elements Wuhan430070 China Key Laboratory of Se-Enriched Products Development and Quality Control Ministry of Agriculture and Rural Affairs/ National-Local Joint Engineering Laboratory of Se-Enriched Food Development Ankang725000 China Nanchang330063 China Key Laboratory of Geochemical Exploration Institute of Geophysical and Geochemical Exploration CAGS Hebei Langfang065000 China Fujian Provincial Key Laboratory of Resources and Environment Monitoring & amp Sustainable Management and Utilization Sanming University Sanming365004 China School of Environmental Science and Engineering Suzhou University of Science and Technology Suzhou215009 China

Many studies have focused their attention on strategies to improve soil phytoremediation efficiency. In this study, a pot experiment was carried out to investigate whether Se and Bacillus proteolyticus SES promote Cu-Cd-Cr uptake by ryegrass. To explore the effect mechanism of Se and Bacillus proteolyticus SES, rhizosphere soil physiochemical properties and rhizosphere soil bacterial properties were determined further. The findings showed that Se and Bacillus proteolyticus SES reduced 23.04% Cu, 36.85% Cd, and 9.85% Cr from the rhizosphere soil of ryegrass. Further analysis revealed that soil pH, organic matter, soil enzyme activities, and soil microbial properties were changed with Se and Bacillus proteolyticus SES application. Notably, rhizosphere key taxa (Bacteroidetes, Actinobacteria, Firmicutes, Patescibacteria, Verrucomicrobia, Chloroflexi, etc.) were significantly enriched in rhizosphere soil of ryegrass, and those taxa abundance were positively correlated with soil heavy metal contents (P © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.

关键词： Soils

来源：评论

学校读者我要写书评

暂无评论

A Stable Long-Term Tracking Method for Group-Housed Pigs 12th

A Stable Long-Term Tracking Method for Group-Housed Pigs

引用

12th International Conference on Image and Graphics, ICIG 2023

作者： Gao, Shibo Gong, Jinmeng Yang, Peipei Liang, Chao Huang, Linlin Beijing Jiaotong University Beijing China State Key Laboratory of Multimodal Artificial Intelligence Systems Institute of Automation Chinese Academy of Sciences Beijing China School of Artificial Intelligence University of Chinese Academy of Sciences Beijing China College of Water Resources and Civil Engineering China Agricultural University Beijing China Key Laboratory of Agricultural Engineering in Structure and Environment Ministry of Agriculture and Rural Affairs Beijing China

ISBN: (纸本)9783031463075

In recent years, computer vision technologies have been increasingly applied to livestock farming for improving efficiency and reducing the labor force in surveillance. Tracking of group-housed pigs is an important task for monitoring the daily behaviors of pigs, which can be used to preliminarily evaluate the health status of pigs. Most researchers directly apply existing multi-object tracking algorithms to this task, but often suffer from tracking failures due to false detection, stacking, occlusion, video jamming, etc. It usually produces a lot of incorrect ID switches that are disastrous for follow-up tasks. In this paper, we propose a group-housed pigs tracking method that can achieve stable long-term tracking. As the identity and number of monitored pigs remain unchanged during a feeding period, we introduce a new object matching mechanism with a classifier, which avoids most incorrect ID switches and effectively improves the matching accuracy. Thus, our tracking method is more robust to complex posture variations of the pig and achieves stable long-term tracking. The experimental results on real videos captured in a pigs farm prove the effectiveness of our method. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2023.

关键词： Agriculture

来源：评论

学校读者我要写书评

暂无评论

Biochar addition to tea garden soils:effects on tea fluoride uptake and accumulation

引用

Biochar 2023年第1期5卷 641-656页

作者： Haoyang Wang Teng Hu Minghan Wang Yunshan Liang Chengwen Shen Huaqin Xu Yaoyu Zhou Zhonghua Liu College of Resources and Environment Hunan Agricultural UniversityChangsha 410128HunanChina Hunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake Area Changsha 410128HunanChina Key Laboratory of Tea Science of Ministry of Education Hunan Agricultural UniversityChangsha 410128HunanChina National Research Center of Engineering and Technology for Utilization of Functional Ingredients From Botanicals Collaborative Innovation Center of Utilization of Functional Ingredients From BotanicalsHunan Agricultural UniversityChangsha 410128HunanChina

Long-term consumption of tea with high fluoride(F)content has a potential threat to human *** application of different amounts of biochar to reduce F accumulation in tea leaves has been little *** this study,a pot experiment was conducted to investigate the effect of biochar amounts(0,0.5%,2.5%,5.0%,8.0%,and 10.0%,w/w)on tea F content during the tea plant *** in tea quality,soil F fraction,and soil properties caused by biochar and the relationship with tea F accumulation were also *** results showed that the application of biochar amendment significantly reduced water-soluble F contents in tea leaves compared to CK(without biochar),especially in the 8.0%treatment(72.55%).Overall,biochar contributed to improving tea polyphenols and caffeine,but had no significant impact on free amino acids and water *** with CK,5.0-10.0%biochar significantly increased soil water-soluble F content due to the substitution of F−with OH−under high ***,biochar applied to tea garden soil was effective in decreasing the soil exchangeable aluminum(Ex-Al)content(46.37-91.90%)and increasing the soil exchangeable calcium(Ca^(2+))content(12.02-129.74%)compared to CK,and correlation analysis showed that this may help reduce F enrichment of tea *** general,the application of 5.0-8.0%biochar can be suggested as an optimal application dose to decrease tea F contents while simultaneously improving tea quality.

关键词： Fluoride Biochar Tea quality Fluoride fractions Fluoride-aluminum complexes

来源：评论

学校读者我要写书评

暂无评论

A simple fluorescent sensor for highly sensitive detection of UO_(2)2+

引用

Chinese Chemical Letters 2023年第4期34卷 420-423页

作者： Huanhuan Ding Chenguang Li Hailing Zhang Na Lin Wen-Sheng Ren Shicheng Li Weidong Liu Zhonghua Xiong Binyuan Xia Chong-Chen Wang Institute of Materials China Academy of Engineering PhysicsMianyang 621907China Beijing Key laboratory of Functional Materials for Building Structure and Environment Remediation/Beijing Energy Conservation&Sustainable Urban and Rural Development Provincial and Ministry Co-construction Collaboration Innovation Center Beijing University of Civil Engineering and ArchitectureBeijing 100044China

Extensive application of nuclear energy has caused widespread environmental uranium *** detection approaches without complicated sample pretreatment and precision instruments are in demand for on-site and in-time determination of uranyl ions in environmental monitoring, especially in an emergency situation. In this work, a simple and effective fluorescent sensor(Z)-N’-hydroxy-4-(1,2,2-triphenylvinyl)benzimidamide(TPE-A) with aggregation-induced emission(AIE) character was established and studied. It could realize to detect UO_(2)2+via quenching the fluorescence of its aggregation-induced emission, with good selectivity and sensitivity. Such strategy shows a wide linear range from 5.0 × 10^(-8)mol/L to 4.5 × 10^(-7)mol/L(R^(2)= 0.9988) with exceptional sensitivity reaching 4.7 × 10^(-9)mol/L, which is far below the limit for uranium in drinking water(30 μg/L, ca. 1.1 × 10-7mol/L) stipulated by the WHO.A response time less than four minutes make it rapid for uranyl ion measurement. It was applied for detection of uranyl ion in spiked river water samples with recoveries in the range of 98.7%-104.0%, comparable to those obtained by ICP-MS. With the advantages of portable apparatus, rapid detection process and high sensitivity, TPE-A can serve as a promising fluorescent sensor for the detection of UO_(2)2+in environmental water samples.

关键词： Uranyl ion Trace analysis Aggregation-induced emission Fluorescent sensor Intramolecular charge transfer

来源：评论

学校读者我要写书评

暂无评论

Nanopriming with selenium doped carbon dots improved rapeseed germination and seedling salt tolerance

引用

The Crop Journal 2024年第5期12卷 1333-1343页

作者： Mohammad Nauman Khan Chengcheng Fu Xiaohui Liu Yanhui Li Jiasen Yan Lin Yue Jiaqi Li Zaid Khan Lixiao Nie Honghong Wu National Key Laboratory for Germplasm Innovation&Utilization of Horticultural Crops MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze RiverThe Center of Crop NanobiotechnologyHuazhong Agricultural UniversityWuhan 430070HubeiChina Hubei Hongshan Laboratory Wuhan 430070HubeiChina School of Breeding and Multiplication(Sanya Institute of Breeding and Multiplication) Hainan UniversitySanya 572000HainanChina College of Food and Pharmaceutical Engineering Guizhou Institute of TechnologyGuiyang 550003GuizhouChina College of Natural Resources and Environment South China Agricultural UniversityGuangzhou 510642GuangdongChina Shenzhen Institute of Nutrition and Health Huazhong Agricultural UniversityShenzhen 511464GuangdongChina Shenzhen Branch Guangdong Laboratory for Lingnan Modern AgricultureGenome Analysis Laboratory of the Ministry of AgricultureAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 511464GuangdongChina

Soil salinity is a big environmental issue affecting crop *** seed nanopriming has been widely used to improve seed germination and seedling growth under salinity,our knowledge about the underlying mechanisms is still ***,we newly synthesized selenium-doped carbon dots nanoparticles coated with poly acrylic acid(poly acrylic acid coated selenium doped carbon dots,PAA@Se-CDs)and used it to prime seeds of *** TEM(transmission electron microscope)size and zeta potential of PAA@Se-CDs are 3.8±0.2 nm and-30 mV,*** 8 h priming,the PAA@Se-CDs nanoparticles were detected in the seed compartments(seed coat,cotyledon,and radicle),while no such signals were detected in the NNP(no nanoparticle control)group(SeO_2 was used as the NNP).Nanopriming with PAA@Se-CDs nanoparticles increased rapeseeds germination(20%)and seedling fresh weight(161%)under saline conditions compared to NNP ***@Se-CDs nanopriming significantly enhanced endo-β-mannanase activities(255%increase,21.55μmol h^(-1)g^(-1)vs.6.06μmol h^(-1)g^(-1),at DAS 1(DAS,days after sowing)),total soluble sugar(33.63 mg g^(-1)FW(fresh weight)vs.20.23 mg g^(-1)FW)and protein contents(1.96μg g^(-1)FW vs.1.0μg g^(-1)FW)to support the growth of germinating seedlings of rapeseeds under salt stress,in comparison with NNP co *** respiration rate and ATP content were increased by 76%and 607%,*** oxidative damage of salinity due to the overaccumulation of reactive oxygen species(ROS)was alleviated by PAA@Se-CDs nanopriming by increasing the antioxidant enzyme activities(SOD(superoxide dismutase),POD(peroxidase),and CAT(catalase)).Another mechanism behind PAA@Se-CDs nanopriming improving rapeseeds salt tolerance at seedling stage was reducing sodium(Na^(+))accumulation and improving potassium(K^(+))retention,hence increasing the K^(+)/Na^(+)ratio under saline ***,our results not only showed that seed nanopriming with PAA@Se-CDs could be a

关键词： PAA@Se-CDs Nanopriming Salt stress Antioxidant system K^(+)/Na^(+) balance ATP production

来源：评论

学校读者我要写书评

暂无评论

Slip distribution inversion of seismic sub-fault dip iteration using gradient based optimizer algorithm

引用

Geodesy and Geodynamics 2024年第2期15卷 114-121页

作者： Leyang Wang Han Li Ming Pang Key Laboratory of Mine Environmental Monitoring and Improving Around Poyang Lake of Ministry of Natural Resources East China University of TechnologyNanchang 330013China School of Surveying and Geoinformation Engineering East China University of TechnologyNanchang 330013China College of Resources and Environment Shandong Agricultural UniversityTaian 271018China

This paper considers setting different dips for different sub-faults to fit the actual rupture situation based on the fault rupture of the 2013 Lushan M_(S)7.0 ***,combined with the coseismic GNSS data of the Lushan earthquake,the source parameters and sliding distribution of the Lushan earthquake fault are ***,we use the gradient based optimizer(GBO)in nonlinear inversion to obtain the source parameters of this seismic *** inversion results indicate that the strike of the fault is 206.52°,the dip is 44.10°,the length is 21.92 km,and the depth is 12.79 *** refine the sliding distribution of the seismic fault,the seismic fault is divided into 3×3 ***,we fix the central sub-fault dip of 44.10°;the dip of other sub-faults is obtained by *** that,the model is further divided into a fault layer model composed of 23×19 sub fault slices,and using the Matlab fitting function is used to fit the dip of the 23×19 sub ***,the Lushan seismic fault plane is established as a shovel structure with steep upper and gentle lower,steep south and gentle *** slip distribution inversion results indicate that the depth of the slip peak is 13 km,the corresponding maximum slip momentum is 0.67 m,the seismic moment is 1.10×10^(19)N·m and the corresponding moment magnitude is *** results above are consistent with the research results of seismology.

关键词： Gradient basedoptimizer(GBO) Lushan earthquake Non-planefault model Slid distribution

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：