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Efficiency Evaluation of Energy in Northeastern China Based on Data Envelopment Analysis
Published 2021-01-01“…The development of the energy economy in Northeastern China is unbalanced. In this paper, some energy structures such as oil, coal, and electricity are chosen as input indexes, while per capita gross domestic product (GDP) and total retail sales of consumer goods are desirable output indexes. …”
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Detection and characterization of bovine hepacivirus in cattle and sheep from Hulunbuir, northeastern China
Published 2025-01-01“…Recombination analysis revealed the intergenerational relationships among the viral strains obtained from cattle and sheep.ConclusionWe identified genetic diversity in subtype G strains in cattle and detected a BovHepV strain in a sheep for the first time in northeastern China, confirming cross-species transmission and co-circulation between cattle and sheep, thus expanding the virus’s host range.…”
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Ophiostomatoid fungi associated with Ips subelongatus, including eight new species from northeastern China
Published 2020-01-01“…Abstract Ips subelongatus is a major pest that infects larch plantations over large areas of northern and northeastern China. Ips species are closely associated with ophiostomatoid fungi that are morphologically well-adapted for dispersal by beetles. …”
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Can Marketization Improve Sustainable Development in Northeastern China? Evidence from the Perspective of Coupling Coordination Degree Model
Published 2022-01-01“…With the acquisition of sustainable development, pursuing the coordinated development of social economy and ecological environment has been a critical approach of Northeastern China. Since the reform and opening-up, marketization has profoundly affected the regional social economy. …”
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Influence of Long-Term Thinning on the Biomass Carbon and Soil Respiration in a Larch (Larix gmelinii) Forest in Northeastern China
Published 2013-01-01“…This study aims to clarify the effects of thinning on C sinks of larch plantations, the most widespread forests in Northeastern China. Both C influx from biomass production and C efflux from each soil respiration component and its temperature sensitivity were determined for scaling-up ecosystem C sink estimation: microbial composition is measured for clarifying mechanism for respiratory changes from thinning treatment. …”
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Geochronology and geochemistry of the Neoproterozoic–Mesozoic intrusive rocks in the Xinlin area, northeastern China: new constraints on the tectonic evolution of the Erguna block
Published 2025-01-01“…The occurrence of intrusive rocks within the Xinlin area, northeastern China, provides insights into the Neoproterozoic–Mesozoic geodynamic setting of the Erguna block. …”
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The History of the Bargut Confrontation in Northeastern China (early 20th century): Ethno-Political and Religious Aspects (based on archival materials)
Published 2024-11-01“…The identification of the ethnic history of the Barguts of northeastern China and the introduction of new archival materials made it possible to identify the features of the national liberation struggle for the sovereignty of the Bargut ethnic group and the search for ways to achieve goals. …”
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A Satisfaction Study of Waterfront Public Spaces in Winter Cities from a Demand Perspective: A KANO-IPA Model Analysis Based on Northeastern China
Published 2025-01-01“…A satisfaction survey was conducted across 12 sample reaches in northeastern China. We used the KANO model to classify the attributes of spatial demand indicators, then applied IPA analysis to evaluate them, and finally calculated priority indices to quantify their priority sequences. …”
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Effects of irrigation frequency on growth and yields of <i>Taraxacum kok-saghyz</i> Rodin
Published 2024-01-01“…Regular watering once every 6 days maintains soil moisture at a level above 28.0%, which makes it possible to increase the yield of Taraxacum kok-saghyz while enhancing the water-use efficiency under the conditions of Northeastern China (Harbin).…”
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Fluid Inclusion and Oxygen Isotope Constraints on the Origin and Hydrothermal Evolution of the Haisugou Porphyry Mo Deposit in the Northern Xilamulun District, NE China
Published 2017-01-01“…The Haisugou porphyry Mo deposit is located in the northern Xilamulun district, northeastern China. Based on alteration and mineralization styles and crosscutting relationships, the hydrothermal evolution in Haisugou can be divided into three stages: an early potassic alteration stage with no significant metal deposition, a synmineralization sericite-chlorite alteration stage with extensive Mo precipitation, and a postmineralization stage characterized by barren quartz and minor calcite and fluorite. …”
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Amur Softshell Turtle (<i>Pelodiscus maackii</i>) Population Size, Structure, and Spatial Distribution
Published 2025-01-01“…Amur softshell turtles (ASTs [<i>Pelodiscus maackii</i>]) are poorly protected due to insufficient awareness and the population in Northeastern China has experienced a steep decline compared to previous years. …”
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Exploring the Feasibility of Ventilation without Shafts for an Ultralong Subsea Tunnel in the Bohai Strait Channel
Published 2021-01-01“…The Bohai Strait Channel (BSC) is a strategic infrastructure project connecting the Shandong Peninsula and northeastern China. One challenge related to building the BSC tunnel portion is that ventilation shafts cannot be constructed due to certain limitations, which leads to a barrier for ventilation design. …”
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Coupling effect of landscape patterns on the spatial and temporal distribution of ecosystem services: a case study in Harbin City, Northeast China
Published 2025-02-01“…Abstract To secure the enduring the long-term growth of ecosystem services, the city of Harbin in northeastern China must prioritize the optimization of its landscape pattern. …”
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Heterogeneous influences of urban compactness on air pollution: evidence from 285 prefecture-level cities in China
Published 2025-01-01“…Cities where land-use compactness exerts a pollution mitigation effect were located east of the Hu line. Cities in Northeastern China had the strongest pollution mitigation effect from transportation compactness, followed by the cities in Southwestern China.…”
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Effect and prediction of long-term weather and pollutant exposure on hemorrhagic fever with renal syndrome: based on statistical models
Published 2025-01-01“…The support vector machine (SVM)-radial algorithm outperformed other algorithms when pollutants are used as predictor variables.ConclusionThis is the first mathematically based study of the seasonal threshold of HFRS in northeastern China, allowing for accurate estimation of the epidemic level. …”
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Soviet Politics and Diplomacy in the Far East: Strategies and Alliances on the Eve of and During World War II
Published 2024-01-01“…This phase also witnessed the 1929 conflict on the Chinese Eastern Railway and culminated in the reestablishment of Sino-Soviet relations, all set against the backdrop of escalating Japanese aggression in Northeastern China (Manchuria). This phase demanded adroit diplomacy balancing strength and strategic statecraft.2. …”
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Melatonin Enhances Maize Germination, Growth, and Salt Tolerance by Regulating Reactive Oxygen Species Accumulation and Antioxidant Systems
Published 2025-01-01“…Consequently, in this research, we utilized the maize cultivars Zhengdan 958 (ZD958) and Demeiya 1 (DMY1), which are extensively marketed in northeastern China’s high-latitude cold regions, to reveal the modulating effects of melatonin on maize salinity tolerance by determining the impacts of varying concentrations of melatonin on maize seedling growth characteristics, osmoregulation, antioxidant systems, and gene expression. …”
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