Subjects: Library Science，Information Science >> Library Science submitted time 2023-08-26 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] This article aims to explore seminal works about the historical roots of a specific research field or subject. The study of historical roots is of great significance for the construction and research.[Method/process] We describe a technical advancement for developing research historiographies by introducing RPYS i/o, an online tool for performing standard RPYS and multi-RPYS analyses. Based on RPYS i/o, we take digital library research field as an example.[Result/conclusion] The tool enables users to explore seminal works underlying a research field and to plot the influence of these seminal works over time.
Subjects: Library Science，Information Science >> Library Science submitted time 2023-07-26 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] With the launch of "Double First-class", universities have pushed out the reform of scientific research management system and academic system. Northeast Normal University and other universities begin to implement PI system. This paper aims to explore the embedded discipline service model based on PI system. [Method/process] By scanning the mode and content of embedded discipline service at home and abroad, this paper carries out the service layout based on PI, and explores the service practice of embedded discipline based on PI. [Result/conclusion] Facing PI system, Northeast Normal University Library has developed the PI demand-oriented decision support services, research life cycle-oriented research support services and research personnel training-oriented teaching support service.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： In the past 60 years, the highly-intensive and unreasonable farming of the black soil in Northeast China has brought a series of adverse consequences such as the reduction of organic matter, the serious imbalance of carbon and nitrogen, and the instability of microbiota, which seriously threaten China’s food security and agricultural sustainable development. The decrease of organic matter content in black soil is the core issue in the degradation of black soil. Organisms are the source of all organic matter, and the dynamic balance of organic matter driven by organisms is the basis for maintaining the stability of farmland ecosystem and soil quality. However, the limitation of hydrothermal resources in Northeast China makes it difficult to realize the transformation of organism-driven soil organic matter, which restricts the improvement of black soil quality and the development of conservation tillage technology. Recently, the Chinese Academy of Sciences has launched the strategic priority program “Scientific and Technological Innovation Project for Black Soil Protection and Utilization (Black Soil Granary)”, and set up the key task of “modern biological technology for improving the productivity and quality of black soil”. Focusing on majorm scientific issues including the mechanism of soil organic matter dynamic balance driven by organisms such as green manure, and the biological mechanism of low-temperature decomposition of straw, the key task aims to develop revolutionary and disruptive biotechnologies to solve the bottleneck of transformation technology of black soil organic matter, hence to promote the benign balance of material circulations and ecological functions. This will provide important theoretical and key technical support for the improvement of productivity and quality of black soil.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： The black soil in northeast China presents a trend of thinning, hardening, impoverishment, and acidification under the long#2;term high-intensity utilization, and faces the water resources shortage and ecological environment imbalance. Thus, the coordination between soil and water resources and environment has become the bottleneck of sustainable agricultural development in northeast China. The black soil protection and utilization is not only a problem of cultivated land system itself, but also a problem of harmonization of mountain-river-forest-farmland-lake-grassland-sandy land ecosystem. To achieve the goal of sustainable use of the black soil, it is necessary to give full play to the function of soil and water conservation, wind prevention and sand fixation, and biodiversity of natural ecosystems such as woodlands, grasslands, and wetlands. Hence, in addition to taking actions to ensure the quantity of cultivated black soil and improve soil quality, a synergetic development strategy of the mountain-river-forest-farmland-lake-grassland-sandy land ecosystems should be implemented to build ecological barrier for controlling and remediation of the black soil degradation.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： Marginal land refers to the land with low agricultural productivity and economic benefit and fragile ecology due to the prominent limitation of soil barrier, strong restriction of water and heat resources as well as harsh topographic conditions. In China, the existing marginal land is about 1.17 billion mu (15 mu is equal to 1 ha), which is the most important resource of strategic emergency to deal with the cultivated land gap of 700 million mu. Marginal land storage is a major strategy for national food security. It has become a new international research trend to increase the productivity and ecological functions of marginal land by modulating the interaction between plant and soil microbial. This includes breeding high stress-tolerant plants, screening and application of plant growth promotion rhizobacteria (PGPR) to promote plant growth on marginal land, and strengthening soil microbial functions to improve soil quality and health. In view of the marginal land productivity expansion and ecological benefit improvement, it is necessary to formulate the overall action plans based on the principles of ecological priority and green development. We should carry out the marginal land R & D project with the idea of “plant first, soil-improvement as the base, water security, microbial control, and the integration of plant-soil-microbial ecological system”. (1) We should build a national database of marginal land and formulate the protection and management zoning plan. (2) We should develop four aspects of basic theory research namely, stress-tolerant plants breeding and its adaptive mechanism, efficient utilization of water and fertilize, soil obstacle factor reduction and biological networks induction/acclimatization, and the interaction between plant and microbial.(3) Focusing on coastal saline-alkali land in north and east China, soda alkali-saline land in northeast China, saline-alkali land in northwest inland, yellow spongy soils slope on the loess plateau, red soil and purple soil slope land in south hilly region, we should build different types of ecological farmland by integrating various technologies and theories. This will promote the protection and sustainable utilization of marginal land resources, and support the timely launch of the efficient use of contiguous marginal land to achieve the goal of increasing productivity by adding 700 million mu of medium-high grade arable land. This will be also helpful to ensure the implementation of the strategy of “storing grain in land and technology” and rural vitalization, and the construction of ecological civilization in China’s ecologically fragile areas.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2018-07-26 Cooperative journals: 《中国科学院院刊》
Abstract：我国东南红壤丘陵区面临侵蚀、酸化、肥力衰减、重金属污染、季节性干旱等退化问题，造成红壤生态系统退化和土地生产力下降，制约了区域农业的可持续发展。1985年鹰潭红壤生态实验站建站以来，系统开展了红壤生态系统的长期观测和生态学基础研究，以及红壤退化与修复、耕地地力演变与提升、红壤养分循环与高效利用、红壤污染与治理、红壤生态农业模式与区域发展战略等方面的应用研究和示范推广。在红壤发生方面，发现现代脱硅富铝化过程仍在继续，小流域土壤自然酸化速率较低；针对红壤农业利用中的加速酸化，研发了抑制质子产生和提升土壤抗酸化能力的新方法，挖掘了红壤区新的耐铝植物资源，揭示了植物耐铝的分子生物学机制；建立了红壤区土壤侵蚀多尺度监测方法，编制了土壤可蚀性因子分布图，查明了红壤侵蚀演变和崩岗发育机制，建立了侵蚀红壤的开发性治理模式；探明了红壤区季节性干旱发生规律，揭示了红壤孔隙形成机制以及不同尺度的水文通量，研发了农田水分高精度远程数据采集系统，建立了低丘红壤区高效节水农业模式；建立了土壤-农作物系统重金属和稀土元素迁移预测模型，提出了红壤和水稻土安全阈值，集成了红壤重金属污染治理技术模式；查明了南方红壤地力和养分平衡的演变状况，揭示了红壤碳氮转化生物网络的驱动机制，提出红壤大团聚体生物培肥技术；创建了江西省耕地保育与持续高效的现代农业技术体系，发展了红壤小流域“山水林田湖草”生态循环农业模式，为红壤区耕地质量建设、生态环境保护和新一代生态循环农业的发展作出了重要贡献。
Subjects: Biology >> Bioengineering submitted time 2017-07-24 Cooperative journals: 《中国生物工程杂志》
Abstract： Preparation of anti-Ebola nucleoprotein antibodies and establishment of sandwich ELISA assay
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