Hotspots and trends in frozen soils research in 2010–2019

Liu, Wenhao; Li, Ren; Shi, Xiaofeng; Wu, Tonghua; Wu, Xiao Dong

doi:10.1002/ppp.2186

Cited by 5 publications

(5 citation statements)

References 70 publications

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“…Liu et al 30 used bibliometric methods and the Web of Science database to examine the literature of perennially and seasonally frozen soils. As with the studies noted above, Liu et al found a steep increase in the number of publications on frozen soils over the temporal extent (2010–2019) of their investigation.…”

Section: Bibliometric Analysis Of Periglacial Literaturementioning

confidence: 99%

“…As with the studies noted above, Liu et al found a steep increase in the number of publications on frozen soils over the temporal extent (2010–2019) of their investigation. Although their choice of key words (Liu et al 30 p. 170) appears to have precluded inclusion of much of the literature on periglacial geomorphology, their database included 7,108 items published in 20 countries, written in an unspecified number of languages. The study used commercially available bibliometric software to rank the influence of countries and institutions as reflected by citation counts and various ratios derived from them, to inventory the most “popular” keywords, and to enumerate a diverse set of “core topics” in research focused on frozen soils, including factors influencing frozen soils, the carbon cycle in Arctic regions, changes in Tibetan permafrost, “ancient” permafrost, and frozen soils in the Arctic.…”

Section: Bibliometric Analysis Of Periglacial Literaturementioning

confidence: 99%

See 1 more Smart Citation

The trajectory of contemporary cryoplanation literature: A bibliometric assessment

Nyland,

Nelson,

Higgins

2024

Permafrost & Periglacial

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The origin of cryoplanation landforms has long been a subject of controversy in the literature on periglacial geomorphology. Multiple hypotheses have been advanced over the past century, but by the early 1970s only two had survived: geological structure and climate‐driven nivation processes. To determine whether some publications may be playing a “gate‐keeping” role through selective citation, we conducted a co‐citation analysis of the cryoplanation literature for the 1971–2018 period preceding a resurgence of publications by the authors of the present paper. The results indicate that there has been no overt attempt to influence the trajectory of the cryoplanation literature. Although consensus now exists that cryoplanation landforms are erosional phenomena, the roles of structure and nivation and their relative importance are still contested. We suggest that terminological complexity and ambiguity can be reduced by treating “nivation” as a process term and “cryoplanation terrace” as a morphological descriptor.

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Section: Bibliometric Analysis Of Periglacial Literaturementioning

confidence: 99%

Section: Bibliometric Analysis Of Periglacial Literaturementioning

confidence: 99%

The trajectory of contemporary cryoplanation literature: A bibliometric assessment

Nyland,

Nelson,

Higgins

2024

Permafrost & Periglacial

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“…The keywords and abstract of a paper are the core of a well-crafted research paper, accurately reflecting the research objectives and core content of the paper [34][35][36]. Analyzing the frequency of keywords and the publication year of the papers they occur in can capture the latest and most frequently referred to popular keywords, revealing the research hotspots in different perspectives of the research field.…”

Section: Hot Abstract and Research Topicsmentioning

confidence: 99%

“…Therefore, it is necessary to conduct a synthesis study of peatlands. Recently, intelligent research posture-analysis techniques using bibliometric methods have been widely applied in many areas of the earth sciences, and research based on situational analysis has been successfully carried out in a wide range of fields, including ecosystem services, permafrost, and ecological studies [34][35][36]. Hence, this methodology will be used in this study to analyze the macro dynamics of global peatland research.…”

Section: Introductionmentioning

confidence: 99%

Research Progress in the Field of Peatlands in 1990–2022: A Systematic Analysis Based on Bibliometrics

Shi,

Liu,

et al. 2024

Land

Self Cite

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Peatlands are major natural carbon pool in terrestrial ecosystems globally and are essential to a variety of fields, including global ecology, hydrology, and ecosystem services. Under the context of climate change, the management and conservation of peatlands has become a topic of international concern. Nevertheless, few studies have yet systematized the overall international dynamics of existing peatland research. In this study, based on an approach integrating bibliometrics and a literature review, we systematically analyzed peatland research from a literature perspective. Alongside traditional bibliometric analyses (e.g., number of publications, research impact, and hot areas), recent top keywords in peatland research were found, including ‘oil palm’, ‘tropical peatland’, ‘permafrost’, and so on. Furthermore, six hot topics of peatland research were identified: (1) peatland development and the impacts and degradations, (2) the history of peatland development and factors of formation, (3) chemical element contaminants in peatlands, (4) tropical peatlands, (5) peat adsorption and its humic acids, and (6) the influence of peatland conservation on the ecosystem. In addition, this review found that the adverse consequences of peatland degradation in the context of climate change merit greater attention, that peatland-mapping techniques suitable for all regions are lacking, that a unified global assessment of carbon stocks in peatlands urgently needs to be established, spanning all countries, and that a reliable system for assessing peatland-ecosystem services needs to be implemented expeditiously. In this study, we argued that enhanced integration in research will bridge knowledge gaps and facilitate the systematic synthesis of peatlands as complex systems, which is an imperative need.

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“…Depending on its freezing state and duration, frozen soil can be divided into short-term frozen soil, seasonally frozen soil, and permafrost, which can be further divided into unstable permafrost (above −0.5 °C), sub-stable permafrost (−0.5 °C to −3 °C), and stable permafrost (below −3 °C) according to the average annual ground temperature. The area of permafrost in China is approximately 2.15 million km 2 , accounting for 22.3% of the national land area [ 1 ]. The southern Qinghai and northern Tibet regions are areas of developing permafrost.…”

Section: Introductionmentioning

confidence: 99%

Freeze–Thaw Damage Degradation Model and Life Prediction of Air-Entrained Concrete in Multi-Year Permafrost Zone

Zhang,

Guo,

et al. 2023

Materials

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The Qinghai–Tibet Plateau is the main permafrost area in China. Concrete structures constructed on permafrost are affected by the early negative-temperature environment. In particular, the negative-temperature environment seriously affects the strength growth process and the frost resistance of concrete (FRC). Therefore, this study considered the influence of the gas content, water–binder ratio (w/b), age, and other factors on the strength variation law and FRC under −3 °C curing conditions. Nuclear magnetic resonance (NMR) was used to analyze the pore structure of concrete before and after freeze–thaw cycles (FTCs). The results showed that the compressive strength of the concrete (CSC) under −3 °C curing was only 57.8–86.4% of that cured under standard conditions. The CSC under −3 °C curing showed an obvious age-lag phenomenon. The FRC under −3 °C curing was much lower than that under standard curing. The porosity of the concrete under −3 °C curing was greater, with a higher percentage of harmful and multi-harmful pores than that under standard curing. The concrete properties deteriorated primarily because curing at −3 °C hindered the hydration reaction compared with standard methods. This hindrance resulted in diminished hydration development, weakening the concrete’s structural integrity. Under both curing conditions, when the gas content was between 3.2% and 3.8%, the frost resistance was the best. This is because a gas content within this range effectively enhances the internal pore structure, therefore relieving the swelling pressure caused by FTCs. Based on the freeze–thaw damage (FTD) model proposed by previous authors, a new model for the CSC under −3 °C curing reaching that of the concrete under standard curing for 28 d was established in this study. This advanced model was capable of accurately assessing the FTD of concrete structures in permafrost regions. Finally, the life expectancy of concrete in Northwest China was predicted. The life of the concrete reached 46.9 years under standard curing, while the longest life of the concrete under −3 °C curing was only 12.9 years. Therefore, attention should be paid to constructing and curing concrete structures in cold environments.

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Hotspots and trends in frozen soils research in 2010–2019

Cited by 5 publications

References 70 publications

The trajectory of contemporary cryoplanation literature: A bibliometric assessment

The trajectory of contemporary cryoplanation literature: A bibliometric assessment

Research Progress in the Field of Peatlands in 1990–2022: A Systematic Analysis Based on Bibliometrics

Freeze–Thaw Damage Degradation Model and Life Prediction of Air-Entrained Concrete in Multi-Year Permafrost Zone

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