Hiroshi Koizumi

6.6k total citations · 1 hit paper
204 papers, 5.5k citations indexed

About

Hiroshi Koizumi is a scholar working on Global and Planetary Change, Soil Science and Ecology. According to data from OpenAlex, Hiroshi Koizumi has authored 204 papers receiving a total of 5.5k indexed citations (citations by other indexed papers that have themselves been cited), including 61 papers in Global and Planetary Change, 58 papers in Soil Science and 50 papers in Ecology. Recurrent topics in Hiroshi Koizumi's work include Soil Carbon and Nitrogen Dynamics (57 papers), Plant Water Relations and Carbon Dynamics (50 papers) and Climate change and permafrost (29 papers). Hiroshi Koizumi is often cited by papers focused on Soil Carbon and Nitrogen Dynamics (57 papers), Plant Water Relations and Carbon Dynamics (50 papers) and Climate change and permafrost (29 papers). Hiroshi Koizumi collaborates with scholars based in Japan, Malaysia and South Korea. Hiroshi Koizumi's co-authors include Takayuki Nakatsubo, Hiroyuki Muraoka, Yukiko Bekku, Ryoji Kanno, Atsuo Yamada, Noriyuki Sonoyama, Mi‐Sun Lee, Masaki Uchida, Shigeru Mariko and Wenhong Mo and has published in prestigious journals such as The Journal of Chemical Physics, Nature Materials and Journal of Geophysical Research Atmospheres.

In The Last Decade

Hiroshi Koizumi

194 papers receiving 5.2k citations

Hit Papers

Room-temperature miscibil... 2006 2026 2012 2019 2006 100 200 300 400
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Room-temperature miscibility gap in LixFePO4
    2006 492 citations Atsuo Yamada, Hiroshi Koizumi et al. Nature Materials profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Hiroshi Koizumi Japan 40 2.1k 1.6k 1.4k 949 936 204 5.5k
Chris Smith Australia 47 787 0.4× 2.7k 1.7× 1.5k 1.1× 311 0.3× 184 0.2× 218 6.9k
Hongsong Chen China 47 2.0k 1.0× 2.4k 1.5× 1.8k 1.3× 1.3k 1.3× 302 0.3× 299 8.3k
Gioṙgio Matteucci Italy 42 3.2k 1.6× 1.5k 1.0× 1.8k 1.3× 1.2k 1.3× 161 0.2× 194 6.7k
Takashi Hirano Japan 38 2.8k 1.4× 671 0.4× 1.6k 1.1× 805 0.8× 329 0.4× 214 4.8k
Jun Zhou China 39 755 0.4× 1.1k 0.7× 876 0.6× 844 0.9× 1.5k 1.6× 293 5.5k
Shizhong Liu China 33 853 0.4× 727 0.4× 444 0.3× 366 0.4× 423 0.5× 220 3.9k
Ulrich Weber Germany 29 1.9k 0.9× 382 0.2× 923 0.7× 758 0.8× 460 0.5× 119 4.9k
Fuqiang Tian China 49 3.7k 1.8× 674 0.4× 518 0.4× 2.3k 2.4× 407 0.4× 236 7.4k
R. Farrell United States 40 412 0.2× 1.3k 0.8× 899 0.6× 363 0.4× 277 0.3× 195 5.3k
Xiangyi Li China 29 1.9k 0.9× 283 0.2× 808 0.6× 710 0.7× 385 0.4× 79 3.3k

Countries citing papers authored by Hiroshi Koizumi

Since Specialization
Citations

This map shows the geographic impact of Hiroshi Koizumi'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 Hiroshi Koizumi with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hiroshi Koizumi more than expected).

Fields of papers citing papers by Hiroshi Koizumi

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Hiroshi Koizumi. 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 Hiroshi Koizumi. The network helps show where Hiroshi Koizumi may publish in the future.

Co-authorship network of co-authors of Hiroshi Koizumi

This figure shows the co-authorship network connecting the top 25 collaborators of Hiroshi Koizumi. A scholar is included among the top collaborators of Hiroshi Koizumi based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Hiroshi Koizumi. Hiroshi Koizumi is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
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Koizumi, Hiroshi, et al.. (2024). A novel scaffold for biofilm formation by soil microbes using iron-cross-linked alginate gels. Bioscience Biotechnology and Biochemistry. 89(3). 473–479. 2 indexed citations
3.
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Yoshitake, Shinpei, et al.. (2016). Substrate limitation to soil microbial communities in a subalpine volcanic desert on Mount Fuji, Japan. European Journal of Soil Biology. 73. 34–45. 2 indexed citations
5.
Koizumi, Hiroshi, et al.. (2014). A 10G/1G Dual-rate Burst-mode Receiver for Next Generation Optical Access Networks. NTT technical review. 12(11). 97–103. 2 indexed citations
6.
Yoshitake, Shinpei, et al.. (2013). CO2 Flux Responses in a Cool-temperate Grassland to an In Situ Warming Experiment Using Infrared Heaters. Journal of Geography (Chigaku Zasshi). 122(4). 733–744. 4 indexed citations
7.
Haishi, Tomoyuki, et al.. (2009). Non-invasive observations of an infestation by the peach fruit moth, Carposina sasakii Matsumura (Lepidoptera: Carposinidae) in apples using a 0.2-T compact MRI system.. Nihon Seitai Gakkaishi. 59(3). 249–257. 2 indexed citations
8.
Ohtsuka, Toshiyuki, Nobuko Saigusa, & Hiroshi Koizumi. (2008). On linking multiyear biometric measurements of tree growth with eddy covariance‐based net ecosystem production. Global Change Biology. 15(4). 1015–1024. 76 indexed citations
9.
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Yamada, Atsuo, Hiroshi Koizumi, Shin‐ichi Nishimura, et al.. (2006). Room-temperature miscibility gap in LixFePO4. Nature Materials. 5(5). 357–360. 492 indexed citations breakdown →
11.
Kotake, Masanori, Katsuya Morita, Hideki Fujimori, et al.. (2005). A Resected Case of Pancreatic Metastasis from Carcinoma of the Colon. The Japanese Journal of Gastroenterological Surgery. 38(4). 441–446. 10 indexed citations
12.
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Ueyama, Tomoko, et al.. (2004). Evaluation of carbon budgets of a forest floor Sasa senanensis community in a cool-temperate forest ecosystem, central Japan. Nihon Seitai Gakkaishi. 54(3). 143–158. 26 indexed citations
14.
Jia, Shugang, Tsuyoshi Akiyama, Wenhong Mo, Motoko Inatomi, & Hiroshi Koizumi. (2003). Temporal and spatial variability of soil respiration in a cool temperate broad-leaved forest 1. Measurement of spatial variance and factor analysis. Nihon Seitai Gakkaishi. 53(1). 13–22. 26 indexed citations
15.
Uchida, Masaki, Hiroyuki Muraoka, Takayuki Nakatsubo, et al.. (2002). Net Photosynthesis, Respiration, and Production of the Moss Sanionia uncinata on a Glacier Foreland in the High Arctic, Ny-Ålesund, Svalbard. Arctic Antarctic and Alpine Research. 34(3). 287–292. 39 indexed citations
16.
Koizumi, Hiroshi, et al.. (1995). Headphone System with Out-of-Head Localization Applying Dynamic HRTF (Head-Related Transfer Function). Journal of the Audio Engineering Society. 9 indexed citations
17.
Ito, Yoshihiro, et al.. (1993). The relation between residual blood volume and dialysis membrane, especially high performance membrane.. Journal of Japanese Society for Dialysis Therapy. 26(6). 1181–1184.
18.
Koizumi, Hiroshi, et al.. (1991). Incidence of Tonsillitis due to Tonsillophilus suis Infection in Fattening Pigs and Breeding Sows. Journal of the Japan Veterinary Medical Association. 44(11). 1093–1097. 3 indexed citations
19.
Nakano, Hisamatsu, Junji Yamauchi, & Hiroshi Koizumi. (1980). The Theoretical and Experimental Investigations of the Two-Wire Square Spiral Antenna. IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences. 63(5). 337–343. 5 indexed citations
20.
Katayama, Tetsuji, Hiroshi Koizumi, Hiroshi Nakagawa, et al.. (1978). Therapeutic Utility of NAPROXEN on Acute Upper Respiratory Infection-Multi-Clinical Double Blind Study. Kansenshogaku zasshi. 52(5). 148–163. 3 indexed citations

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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