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Gel Microbead Cultivation with a Subenrichment Procedure Can Yield Better Bacterial Cultivability from a Seawater Sample than Standard Plating Method 被引量:3
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作者 JI Shiqi ZHAO Rui +4 位作者 YIN Qi ZHAO Yuan LIU Chenguang XIAO Tian ZHANG Xiaohua 《Journal of Ocean University of China》 SCIE CAS 2012年第1期45-51,共7页
A gel microbead (GMD) cultivation method was employed to cultivate microorganisms from an amphioxus breeding zone in Qingdao, P. R. China. The culture results were compared with those by standard plating method. In th... A gel microbead (GMD) cultivation method was employed to cultivate microorganisms from an amphioxus breeding zone in Qingdao, P. R. China. The culture results were compared with those by standard plating method. In the GMD-based method, the microcolony-forming GMDs were sorted by fluorescence-activated cell sorting (FACS). To further get pure cultures, a subsequent enrichment culture and a streaking purification procedure were conducted on marine R2A medium. Eighty bacterial strains isolated by the GMD-based method were randomly selected for sequencing. These isolates belonged to Alphaproteobacteria (33%), Gammaproteobacteria (44%), Bacteroidetes (11%), Actinobacteria (5%), Firmicutes (5%), Epsilonproteobacteria (1%), and Verrucomicrobia (1%), the last two groups being usually difficult to culture. The 16S rRNA gene sequences revealed a diverse community with 91.1%-100% of the bacterial rRNAs similarities. Thirteen strains were sharing 16S rRNA gene sequence which was less than 97% similar to any other rRNA genes currently deposited in TYP16S database. Seventy isolates derived from the standard plating method fell into 4 different taxonomic groups: Alphaproteobacteria (9%), Gammaproteobacteria (81%), Bacteroidetes (7%) and Firmicutes (3%) with a 16S rRNA gene sequence similarities between 95.8%-100%, in which only 3 strains were sharing 16S rRNA gene sequence of less than 97%. The results indicated that the GMD-based method with subenrichment culture yielded more taxonomic groups and more novel microbial strains, including members of previously rarely cultured groups, when compared with the standard plating method, and that this method markedly improved the bacterial cultivability. 展开更多
关键词 GMD cultivation marine microorganism bacterial cultivability amphioxus
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Research on the Cultivation Technology of Yam(Dioscorea opposita)in Northern China
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作者 Jintong LIU Wenjia ZENG +3 位作者 Qiangtian LONG Jiayi WANG Yufei LI Huiqin LIU 《Agricultural Biotechnology》 2026年第1期9-12,共4页
Yam(Dioscorea opposita)is an important economic crop,and the development of its the cultivation tecchnology is of great significance for increasing yield,improving quality,and reducing the occurrence of pests and dise... Yam(Dioscorea opposita)is an important economic crop,and the development of its the cultivation tecchnology is of great significance for increasing yield,improving quality,and reducing the occurrence of pests and diseases.With the progression of agricultural technology and changes in market demands,the cultivation tecchnology of yam is constantly innovating and improving.This paper reviewed recent research advances in yam cultivation tecchnology,covering aspects such as soil improvement,variety selection,technological innovations,green pest control,and harvesting and storage.The goal is to provide references for the sustainable development of the yam industry. 展开更多
关键词 YAM CULTIVATION MANAGEMENT Research progress
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Xu Zhihong:Learning From Nature,Inspired by Plants
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作者 HUANG WEI CHEN WENXIN 《China Today》 2026年第1期60-62,共3页
For decades,Xu has been committed to fulfilling the duty and mission of a scientist and educator—diving into the laws of nature,caring deeply for the nation,and earnestly cultivating younger generations.
关键词 cultivating younger generations scientist LAWS nature younger generations EDUCATOR PLANTS laws naturecaring
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Feeling the Fragrance
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作者 YANG SHUANGSHUANG 《China Today》 2026年第1期34-35,共2页
Blending tradition with modern elements,Songyang’s tea industry attracts young entrepreneurs to revive culture and drive economic growth.SONGYANG has a long and rich history of tea cultivation and production.The coun... Blending tradition with modern elements,Songyang’s tea industry attracts young entrepreneurs to revive culture and drive economic growth.SONGYANG has a long and rich history of tea cultivation and production.The county became famous for its tea as early as the Three Kingdoms period(220-280).Today,this land is home to over 10,000 hectares of ecofriendly tea plantations.One in every three Songyang residents is involved in the tea industry,whose full industrial chain value now exceeds RMB 13.5 billion. 展开更多
关键词 TEA cultural revival economic growth young entrepreneurs modern elements TRADITION production tea cultivation
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Selection of Conservation Practices in Different Vineyards Impacts Soil,Vines and Grapes Quality Attributes
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作者 Antonios Chrysargyris Demetris Antoniou +1 位作者 Timos Boyias Nikolaos Tzortzakis 《Phyton-International Journal of Experimental Botany》 2026年第1期1-22,共22页
Cyprus has an extensive record in grape production and winemaking.Grapevine is essential for the economic and environmental sustainability of the agricultural sector,as it is in other Mediterranean regions.Intensive a... Cyprus has an extensive record in grape production and winemaking.Grapevine is essential for the economic and environmental sustainability of the agricultural sector,as it is in other Mediterranean regions.Intensive agriculture can overuse and exhaust natural resources,including soil and water.The current study evaluated how conservation strategies,including no tillage and semi-tillage(as a variation of strip tillage),affected grapevine growth and grape quality when compared to conventional tillage application.Two cultivars were used:Chardonnay and Maratheftiko(indigenous).Soil pH decreased,and EC increased after tillage applications,in both vineyards.Tillage lowered soil N levels through mineralization,but the vineyard with Maratheftiko cultivar had higher soil N and K levels than the vineyard with Chardonnay cultivar.No tillage reduced yield in Chardonnay;however,semi-tillage enhanced yield in Maratheftiko.There were no major changes in plant physiology,even though Maratheftiko had less variation in stomatal conductance values under the various tillage practices than Chardonnay.Tillage enhanced N and K content in Chardonnay vines during flowering,and increased N in Maratheftiko.Total phenols and antioxidant status of leaves varied,with tillage stimulating them,especially at the harvest stage.Furthermore,tillage raised grape juice total soluble solids,pH,and total phenols in both cultivars,while anthocyanins and tannins content were increased in Maratheftiko under no tillage.The results of this study may aid in the development of cultivation strategies to enable viticulture to address various environmental challenges due to climate change. 展开更多
关键词 Semi-tillage cultivation management indigenous cultivars grapes quality
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Impacts of Fertilization and Soil Amendments on Rhizosphere Microbiota and Growth of Panax:A Meta-Analysis
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作者 Hong Chen Runze Yang +4 位作者 Jing Tian Boyuan Xu Qiang Chen Yuzong Chen Ming-Xiao Zhao 《Phyton-International Journal of Experimental Botany》 2026年第1期187-202,共16页
Panax species are globally recognized for their high medicinal and economic value,yet large-scale cultivation is constrained by high production costs,progressive soil acidification,and persistent soil-borne diseases.A... Panax species are globally recognized for their high medicinal and economic value,yet large-scale cultivation is constrained by high production costs,progressive soil acidification,and persistent soil-borne diseases.Although various soil improvement strategies have been tested,a comprehensive synthesis of their comparative effectiveness has been lacking.Here,we conducted a meta-analysis of 1381 observations from 54 independent studies to evaluate the effects of conventional fertilizers,microbial fertilizers,organic amendments,and inorganic amendments on Panax cultivation.Our results demonstrate that microbial fertilizers,organic amendments,and inorganic amendments significantly increased soil pH,thereby ameliorating soil acidification.Among them,organic amendments significantly enhanced the content of soil organic carbon,available nitrogen,and available phosphorus,alongside a notable increase in microbial diversity(Chao1 and ACE indices,which increased by 9%and 17%,respectively).Moreover,our analysis revealed that while microbial fertilizers,organic amendments,and inorganic amendments(except conventional fertilizers)reduced the disease index of Panax plants,organic amendments demonstrated absolute superiority in promoting plant height,root dry weight,root fresh weight,and root length.By quantitatively integrating multi-source evidence,this study provides novel mechanistic insights and practical recommendations that extend beyond local practices,offering guidance for sustainable ginseng cultivation and broader medicinal plant production systems worldwide. 展开更多
关键词 Panax cultivation soil amendments fertilizers soil bacteria
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Integrating Literature Reading Into Unit Topic Teaching as a New Approach to Moral Education in College English
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作者 LI Ju-yuan LI Hong-yan 《Cultural and Religious Studies》 2026年第1期47-54,共8页
As a public basic course and the core general course of undergraduate education,moral education(ME)in College English is imperative.It is necessary to design specific teaching programs flexibly and creatively on the b... As a public basic course and the core general course of undergraduate education,moral education(ME)in College English is imperative.It is necessary to design specific teaching programs flexibly and creatively on the basis of fully understanding the ideas,objectives and tasks,basic principles and implementation methods of ME.This paper tries integrating literature reading into unit topic teaching as a new approach to ME in College English.The specific pathways of integration include:expansion of literary reading content,diversified teaching of literary reading,diversified media of literary reading,and diversified assessment system of literary quality.The integration of literature reading and unit topic teaching is conducive to the realization of the teaching goal of cultivating students’language ability,humanistic quality,and correct values. 展开更多
关键词 College English literature reading unit topic teaching morality cultivation
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Genome-wide characterization and expression analysis of the cultivated peanut AhPR10 gene family mediating resistance to Aspergillus flavus
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作者 Qi Zhao Mengjie Cui +11 位作者 Tengda Guo Lei Shi Feiyan Qi Ziqi Sun Pei Du Hua Liu Yu Zhang Zheng Zheng Bingyan Huang Wenzhao Dong Suoyi Han Xinyou Zhang 《Journal of Integrative Agriculture》 2026年第1期56-67,共12页
The pathogenesis-related protein PR10 plays a vital role in plant growth,development,and stress responses.This study systematically identified and analyzed PR10 genes in cultivated peanut(Arachis hypogaea L.),examinin... The pathogenesis-related protein PR10 plays a vital role in plant growth,development,and stress responses.This study systematically identified and analyzed PR10 genes in cultivated peanut(Arachis hypogaea L.),examining their phylogenetic relationships,conserved motifs,gene structures,and syntenic relationships.The analysis identified 54 Ah PR10 genes,which were classified into eight groups based on phylogenetic relationships,supported by gene structure and conserved motif characterization.Analysis of chromosomal distribution and synteny demonstrated that segmental duplications played a crucial role in the expansion of the Ah PR10 gene family.The identified Ah PR10 genes exhibited both constitutive and inducible expression patterns.Significantly,Ah PR10-7,Ah PR10-33,and Ah PR10-41 demonstrated potential importance in peanut resistance to Aspergillus flavus.In vitro fungistatic experiments demonstrated that recombinant Ah PR10-33 effectively inhibited A.flavus mycelial growth.These findings provide valuable insights for future investigations into Ah PR10 functions in protecting peanut from A.flavus infection. 展开更多
关键词 cultivated peanut PR10 phylogenetic analysis expression pattern Aspergillus avus
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Research Progress on Spatiotemporal Variability of Rice Planting Based on Satellite Remote Sensing Monitoring
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作者 Qi ang HU Aichuan LI +2 位作者 Xinbing WANG Francesco Marinello Zhan SHI 《Agricultural Biotechnology》 2026年第1期76-81,共6页
As a vital food crop,rice is an important part of global food crops.Studying the spatiotemporal changes in rice cultivation facilitates early prediction of production risks and provides support for agricultural policy... As a vital food crop,rice is an important part of global food crops.Studying the spatiotemporal changes in rice cultivation facilitates early prediction of production risks and provides support for agricultural policy decisions related to rice.With the increasing application of satellite remote sensing technology in crop monitoring,remote sensing for rice cultivation has emerged as a novel approach,offering new perspectives for monitoring rice planting.This paper briefly outlined the current research and development status of satellite remote sensing for monitoring rice cultivation both at home and abroad.Foreign scholars have made innovations in data sources and methodologies for satellite remote sensing monitoring,and utilized multi-source satellite information and machine learning algorithms to enhance the accuracy of rice planting monitoring.Scholars in China have achieved significant results in the study of satellite remote sensing for monitoring rice cultivation.Their research and application in monitoring rice planting areas provide valuable references for agricultural production management.However,satellite remote sensing monitoring of rice still faces challenges such as low spatiotemporal resolution and difficulties related to cloud cover and data fusion,which require further in-depth investigation.Additionally,there are shortcomings in the accuracy of remote sensing monitoring for fragmented farmland plots and smallholder farming.To address these issues,future efforts should focus on developing multi-source heterogeneous data fusion analysis technologies and researching monitoring systems.These advancements are expected to enable high-precision large-scale acquisition of rice planting information,laying a foundation for future smart agriculture. 展开更多
关键词 Satellite remote sensing Rice cultivation Spatiotemporal variability MONITORING Research review
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Application and Practice of RPA Technology in FinTech Field-University-enterprise Cooperation Course Construction for Software Engineering Characteristic Talents Cultivation
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作者 Yixian Liu Jun Guo +2 位作者 Hongjuan Liu Dongming Chen Zhiliang Zhu 《计算机教育》 2026年第3期109-118,共10页
In response to the Ministry of Education’s requirements for building distinctive model software schools,Software College of Northeastern University and Shenzhen Kingdom Technology Co.,Ltd.jointly developed the specia... In response to the Ministry of Education’s requirements for building distinctive model software schools,Software College of Northeastern University and Shenzhen Kingdom Technology Co.,Ltd.jointly developed the specialized course“Application and Practice of RPA Technology in FinTech”.Addressing pain points in financial digital transformation,the course integrates robotic process automation(RPA)principles,financial domain knowledge,and RPA platform practice into a“technology-scenario-capability”trinity teaching system.Through 64 credit hours of integrated theory and practice,it covers RPA fundamentals,financial applications,RPA operations(including core skills like Web/desktop automation),and AI integration,cultivating students’ability to design and implement automated financial workflows.It innovatively features a RPA simulation platform,30+financial case studies,and modular task resources,creating a“teacher-machine-student”interactive model.Practice demonstrates the course effectively enhances students’integration of technical application and business acumen,providing a scalable paradigm for cultivating interdisciplinary FinTech talent. 展开更多
关键词 RPA technology FinTech field Characteristic talents cultivation University-enterprise cooperation Course construction
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SPG contributes wisdom and strength to cultivating international standardization talent
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作者 Xu Guowang 《China Standardization》 2026年第1期46-46,共1页
Established in 2019,the Shandong Port Group(SPG)comprises four port groups(Qingdao Port,Rizhao Port,Yantai Port,and Bohaiwan Port)and 12 business segments.SPG connects 3,345 kilometers of coastline within Shandong Pro... Established in 2019,the Shandong Port Group(SPG)comprises four port groups(Qingdao Port,Rizhao Port,Yantai Port,and Bohaiwan Port)and 12 business segments.SPG connects 3,345 kilometers of coastline within Shandong Province.Its cargo throughput has consistently ranked first globally for many years,and its container volume growth ranks second globally,forming a port cluster covering the entire industrial chain. 展开更多
关键词 port cluster port groups talent cultivation industrial chain international standardization Shandong Port Group cargo throughput container volume
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Theoretical Construction and Practical Path Innovation for Integrating Yellow River Culture Into the Cultivation of Cultural Confidence in University Students
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作者 LI Ling CAI Weixi 《Journal of Literature and Art Studies》 2026年第1期60-66,共7页
Guided by the significant theoretical principle of the“Two Integrations”and grounded in Marxist cultural theory as its methodological basis,this paper constructs a bidirectional interpretative model linking“Yellow ... Guided by the significant theoretical principle of the“Two Integrations”and grounded in Marxist cultural theory as its methodological basis,this paper constructs a bidirectional interpretative model linking“Yellow River Culture”with“Cultural Confidence”.It proposes an integrated“Objective-Content-Path-Support”framework.Through the synergy of three-dimensional objectives,adaptation of stratified content,innovation in four-dimensional pathways,and support from a three-dimensional guarantee system,this framework establishes a closed-loop operational mechanism of“Curriculum-Practice-Evaluation-Feedback”.The study focuses on core issues in integrating Yellow River culture into university education practices,such as content construction,methodological pathways,and institutional guarantees.It aims to provide a systematic reference for universities to fulfill their fundamental task of“fostering virtue and cultivating talent”and to serve the national strategies for ecological protection and high-quality development in the Yellow River Basin. 展开更多
关键词 Yellow River culture cultivation of cultural confidence theoretical framework practical path educational mechanism
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Tracks to the Future How the China-Laos Railway is cultivating the next generation of local talent
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作者 Guo Xixian 《China Report ASEAN》 2026年第1期38-40,共3页
The Luang Prabang Maintenance Management Center of the ChinaLaos Railway is still brightly lit late into the night.Zhao Renjie,director of power supply,is overseeing catenary maintenance with steady concentration.Next... The Luang Prabang Maintenance Management Center of the ChinaLaos Railway is still brightly lit late into the night.Zhao Renjie,director of power supply,is overseeing catenary maintenance with steady concentration.Next to him are Lao team leader Phouthong and his apprentice,catenary worker Khang Meng.Their busy figures form a routine yet vivid snapshot of therailway's daily operations. 展开更多
关键词 APPRENTICESHIP Catenary Worker lao team leader phouthong Maintenance Management catenary maintenance Talent Cultivation luang prabang Night Operations
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A molecular marker developed for high linarin chrysanthemum breeding
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作者 Jiayi Luo Zhenzhen Song +7 位作者 Tianhua Jiang Yuyao Zhang Kang Gao Dongliang Chen Conglin Huang Chao Ma Yafei Zhao Chang Luo 《Horticultural Plant Journal》 2026年第2期493-496,共4页
Members of genus Chrysanthemum,comprising approximately 40 species,hold economic significance as edible,medicinal,and ornamental plants.Among these species,Chrysanthemum indicum and the cultivated chrysanthemum C.mori... Members of genus Chrysanthemum,comprising approximately 40 species,hold economic significance as edible,medicinal,and ornamental plants.Among these species,Chrysanthemum indicum and the cultivated chrysanthemum C.morifolium have been used for tea and traditional Chinese medicine to treat common cold symptoms,impaired vision,dizziness,and skin irritation.The medicinal properties of chrysanthemum are primarily derived from its bioactive compounds,including flavonoids. 展开更多
关键词 cultivated chrysanthemum edible plants bioactive compoundsincluding molecular marker LINARIN medicinal plants traditional chinese medicine Chrysanthemum breeding
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A Multi-Stage Pipeline for Date Fruit Processing: Integrating YOLOv11 Detection, Classification, and Automated Counting
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作者 Ali S.Alzaharani Abid Iqbal 《Computers, Materials & Continua》 2026年第1期1327-1353,共27页
In this study,an automated multimodal system for detecting,classifying,and dating fruit was developed using a two-stage YOLOv11 pipeline.In the first stage,the YOLOv11 detection model locates individual date fruits in... In this study,an automated multimodal system for detecting,classifying,and dating fruit was developed using a two-stage YOLOv11 pipeline.In the first stage,the YOLOv11 detection model locates individual date fruits in real time by drawing bounding boxes around them.These bounding boxes are subsequently passed to a YOLOv11 classification model,which analyzes cropped images and assigns class labels.An additional counting module automatically tallies the detected fruits,offering a near-instantaneous estimation of quantity.The experimental results suggest high precision and recall for detection,high classification accuracy(across 15 classes),and near-perfect counting in real time.This paper presents a multi-stage pipeline for date fruit detection,classification,and automated counting,employing YOLOv11-based models to achieve high accuracy while maintaining real-time throughput.The results demonstrated that the detection precision exceeded 90%,the classification accuracy approached 92%,and the counting module correlated closely with the manual tallies.These findings confirm the potential of reducing manual labour and enhancing operational efficiency in post-harvesting processes.Future studies will include dataset expansion,user-centric interfaces,and integration with harvesting robotics. 展开更多
关键词 Date fruit cultivation YOLOv11 precision agriculture real-time processing automated fruit counting deep learning agricultural productivity
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Exploration and Practice of School-Enterprise Cooperation Model of Software Engineering Majors from Multi-Perspectives
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作者 Linpeng Zhong Yong Liao 《计算机教育》 2026年第3期38-46,共9页
Promoting the integration of industry and education and deepening school-enterprise cooperation in talent cultivation and collaborative innovation are long-term goals of higher education.This paper systematically anal... Promoting the integration of industry and education and deepening school-enterprise cooperation in talent cultivation and collaborative innovation are long-term goals of higher education.This paper systematically analyzes the multiple perspectives,practical challenges,and implementation paths of in-depth school-enterprise cooperation.Based on the typical case of school-enterprise cooperation at the School of Information and Software Engineering,University of Electronic Science and Technology of China(UESTC),this paper explores the innovative practices of in-depth school-enterprise cooperation in talent cultivation,scientific research,and faculty construction.It also explores a multi-party collaborative mechanism from the perspectives of universities,enterprises,students,and the government.By policy guidance,resource integration,and benefit sharing,this mechanism achieves in-depth integration of industry and education,providing references and examples for further development of school-enterprise cooperation in the new era. 展开更多
关键词 Software engineering School-enterprise cooperation Integration of industry and education Collaborative talent cultivation Multi-perspective analysis
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Anticipatory management for sustainable cultivated land transitions:Aligning multifunctional trajectories with adaptive zoning guidance
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作者 WU Junjie WANG Lingzhi +3 位作者 LONG Hualou LI Xinyao GUO Wenhua OMRANI Hichem 《Journal of Geographical Sciences》 2026年第1期16-44,共29页
Rapid regional population shifts and spatial polarization have heightened pressure on cultivated land—a critical resource demanding urgent attention amid ongoing urban-rural transition.This study selects Jiangsu prov... Rapid regional population shifts and spatial polarization have heightened pressure on cultivated land—a critical resource demanding urgent attention amid ongoing urban-rural transition.This study selects Jiangsu province,a national leader in both economic and agricultural development,as a case area to construct a multidimensional framework for assessing the recessive morphological characteristics of multifunctional cultivated land use.We examine temporal dynamics,spatial heterogeneity,and propose an integrated zoning strategy based on empirical analysis.The results reveal that:(1)The recessive morphology index shows a consistent upward trend,with structural breaks in 2007 and 2013,and a spatial shift from“higher in the east and lower in the west”to“higher in the south and lower in the north.”(2)Coordination among sub-dimensions of the index has steadily improved.(3)The index is expected to continue rising in the next decade,though at a slower pace.(4)To promote coordinated multidimensional land-use development,we recommend a policy framework that reinforces existing strengths,addresses weaknesses,and adapts zoning schemes to current spatial conditions.This research offers new insights into multifunctional cultivated land systems and underscores their role in enhancing human well-being,securing food supply,and supporting sustainable urban-rural integration. 展开更多
关键词 multifunctional cultivated land use recessive transition economic-social-ecological sub-dimension zoning management sustainable agro-urban systems future prediction Jiangsu province
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Mechanism of Pleiotropic Gene OsSP3 Regulating Root Development in Rice
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作者 YE Jing LIANG Chuyan +3 位作者 ZHAI Rongrong WU Mingming ZHANG Xiaoming YE Shenghai 《Rice science》 2026年第1期1-4,I0001-I0007,共11页
The shift from seedling transplanting to direct-seeding cultivation in rice demands robust root systems for early seedling establishment and yield stability.While the pleiotropic gene OsSP3(also designated TAC4 or SG2... The shift from seedling transplanting to direct-seeding cultivation in rice demands robust root systems for early seedling establishment and yield stability.While the pleiotropic gene OsSP3(also designated TAC4 or SG2)is known to regulate aboveground traits,including tiller angle,grain size,and panicle development,its function in root morphogenesis remains uncharacterized. 展开更多
关键词 pleiotropic gene seedling transplanting OSSP root development direct seeding cultivation root morphogenesis pleiotropic gene ossp also robust root systems
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Integration of Landsat and MODIS Imagery for Mapping 30-m Cotton Cultivation Areas in Xinjiang,China from 2000 to 2020
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作者 TAN Zhuting TAN Zhenyu +1 位作者 DUAN Hongtao ZHANG Kaili 《Chinese Geographical Science》 2026年第1期97-108,I0001,共13页
Cotton is an important global cash crops that serve as the primary source of natural fiber for textiles.A thorough understand-ing of the long-term variations in cotton cultivation is vital for optimizing cotton cultiv... Cotton is an important global cash crops that serve as the primary source of natural fiber for textiles.A thorough understand-ing of the long-term variations in cotton cultivation is vital for optimizing cotton cultivation management and promoting the sustainable development of the cotton industry.Xinjiang is the primary cotton-producing region in China.However,long-term data of cotton cultiv-ation areas with high spatial resolution are unavailable for Xinjiang,China.Therefore,this study aimed to identify and map an accurate 30-m cotton cultivation area dataset in Xinjiang from 2000 to 2020 by applying a Random Forest(RF)-based method that integrates Landsat and Moderate Resolution Imaging Spectroradiometer(MODIS)images,and validated the applicability and accuracy of dataset at a large spatial scale.Then,this study analyzed the spatiotemporal variations and influencing factors of cotton cultivation in the study period.The results showed that a high classification accuracy was achieved(overall accuracy>85%,F1>0.80),strongly agreeing with county-level agricultural statistical yearbook data(R2>0.72).Significant spatiotemporal variation in the cotton cultivation areas was found in Xinjiang,with a total increase of 1131.26 kha from 2000 to 2020.Notably,cotton cultivation area in southern Xinjiang expan-ded substantially,with that in Aksu increasing from 20.10%in 2000 to 28.17%in 2020,representing an expansion of 374.29 kha.In northern Xinjiang,the cotton areas in the Tacheng region also exhibited significant increased by almost ten percentage points in the same period.In contrast,cotton cultivation in eastern Xinjiang declined,decreasing from 2.22%in 2000 to merely 0.24%in 2020.Standard deviation ellipse analysis revealed a‘northeast-southwest’spatial distribution,with the centroid consistently located in Aksu and shifting 102.96 km over the 20-yr period.Pearson correlation analysis indicated that socioeconomic factors had a stronger influence on cotton cultivation than climatic factors,with effective irrigation area(r=0.963,P<0.05)and total agricultural machinery power(r=0.823)showing significant positive correlations,whereas climatic variables exhibiting weak associations(r<0.200).These results provide valuable scientific data for informed agricultural management,sustainable development,and policymaking. 展开更多
关键词 cotton cultivation mapping long-term series LANDSAT Moderate Resolution Imaging Spectroradiometer(MODIS) remote sensing Xinjiang China
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Qingdao helps promote the innovative integration of standardization education and youth talent cultivation
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作者 Zhang Yongyan 《China Standardization》 2026年第1期45-45,共1页
The third International Standardization Youth Star Competition is held in Qingdao.We are very pleased to see that 236 teams from renowned domestic universities are actively participating in the competition.ISO has als... The third International Standardization Youth Star Competition is held in Qingdao.We are very pleased to see that 236 teams from renowned domestic universities are actively participating in the competition.ISO has also sent a representative to Qingdao,demonstrating its high level of attention and support for the competition. 展开更多
关键词 international standardization youth star competition standardization education youth talent cultivation Qingdao ISO standardization youth star competition domestic universities
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