Jan‐Erik Hällgren

40 papers and 1.1k indexed citations i.

About

Jan‐Erik Hällgren is a scholar working on Plant Science, Global and Planetary Change and Atmospheric Science. According to data from OpenAlex, Jan‐Erik Hällgren has authored 40 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Plant Science, 14 papers in Global and Planetary Change and 12 papers in Atmospheric Science. Recurrent topics in Jan‐Erik Hällgren’s work include Plant Water Relations and Carbon Dynamics (11 papers), Plant Stress Responses and Tolerance (11 papers) and Plant responses to elevated CO2 (10 papers). Jan‐Erik Hällgren is often cited by papers focused on Plant Water Relations and Carbon Dynamics (11 papers), Plant Stress Responses and Tolerance (11 papers) and Plant responses to elevated CO2 (10 papers). Jan‐Erik Hällgren collaborates with scholars based in Sweden, India and United Kingdom. Jan‐Erik Hällgren's co-authors include Emil Cienciala, Jiří Kučera, Gunnar Wingsle, Tomas Lundmark, Anders Lindroth, Kerstin Gezelius, Jan Čermák, Stanisław Karpiński, Sten‐Åke Fredriksson and Jan Čermák and has published in prestigious journals such as PLANT PHYSIOLOGY, Environmental Pollution and Journal of Experimental Botany.

In The Last Decade

Co-authorship network of co-authors of Jan‐Erik Hällgren i

Fields of papers citing papers by Jan‐Erik Hällgren

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Jan‐Erik Hällgren. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Jan‐Erik Hällgren. The network helps show where Jan‐Erik Hällgren may publish in the future.

Countries citing papers authored by Jan‐Erik Hällgren

Since Specialization
Citations

This map shows the geographic impact of Jan‐Erik Hällgren's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Jan‐Erik Hällgren with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Jan‐Erik Hällgren more than expected).

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar’s output or impact.

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2025