Toru Sakai

655 total citations
30 papers, 342 citations indexed

About

Toru Sakai is a scholar working on Global and Planetary Change, Environmental Engineering and Nature and Landscape Conservation. According to data from OpenAlex, Toru Sakai has authored 30 papers receiving a total of 342 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Global and Planetary Change, 10 papers in Environmental Engineering and 8 papers in Nature and Landscape Conservation. Recurrent topics in Toru Sakai's work include Remote Sensing and LiDAR Applications (8 papers), Forest ecology and management (7 papers) and Remote Sensing in Agriculture (6 papers). Toru Sakai is often cited by papers focused on Remote Sensing and LiDAR Applications (8 papers), Forest ecology and management (7 papers) and Remote Sensing in Agriculture (6 papers). Toru Sakai collaborates with scholars based in Japan, Myanmar and Ethiopia. Toru Sakai's co-authors include Tsuyoshi Akiyama, Yasushi Hashimoto, Shugang Jia, Hiroshi Koizumi, Wenhong Mo, Motoko Inatomi, Nobuko Saigusa, Toshiyuki Ohtsuka, Yasumasa Hirata and Kensuke Kawamura and has published in prestigious journals such as International Journal of Remote Sensing, Forest Ecology and Management and Agricultural and Forest Meteorology.

In The Last Decade

Toru Sakai

27 papers receiving 325 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Toru Sakai Japan 12 198 109 101 86 75 30 342
Sophal Chann Japan 12 208 1.1× 101 0.9× 142 1.4× 130 1.5× 50 0.7× 33 387
Marco Albani Canada 5 213 1.1× 122 1.1× 95 0.9× 91 1.1× 25 0.3× 6 366
Jana Škvareninová Slovakia 11 192 1.0× 70 0.6× 61 0.6× 56 0.7× 96 1.3× 34 368
Marcus Guderle Germany 9 162 0.8× 80 0.7× 82 0.8× 128 1.5× 50 0.7× 10 302
Bethany K. Schulz United States 7 142 0.7× 141 1.3× 44 0.4× 172 2.0× 115 1.5× 11 392
Luigi Saulino Italy 13 231 1.2× 130 1.2× 61 0.6× 134 1.6× 72 1.0× 23 403
Enrico Pompei Italy 10 198 1.0× 98 0.9× 58 0.6× 164 1.9× 106 1.4× 16 383
Jeffery P. Dech Canada 14 144 0.7× 143 1.3× 74 0.7× 216 2.5× 78 1.0× 29 462
Angélica Faria de Resende Brazil 11 244 1.2× 195 1.8× 75 0.7× 202 2.3× 38 0.5× 26 439
Robert Nuske Germany 8 170 0.9× 131 1.2× 144 1.4× 210 2.4× 55 0.7× 8 431

Countries citing papers authored by Toru Sakai

Since Specialization
Citations

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

Fields of papers citing papers by Toru Sakai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Toru Sakai

This figure shows the co-authorship network connecting the top 25 collaborators of Toru Sakai. A scholar is included among the top collaborators of Toru Sakai 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 Toru Sakai. Toru Sakai 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
1.
Iizumi, Toshichika, Toru Sakai, Yoshimitsu Masaki, et al.. (2025). Assessing the capacity of agricultural research and development to increase the stability of global crop yields under climate change. PNAS Nexus. 4(4). pgaf099–pgaf099. 2 indexed citations
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Masaki, Yoshimitsu, et al.. (2025). Toward improving global rice yield reference dataset compilation through machine learning: Insights from training data selection and random forest analysis. Journal of Agricultural Meteorology. 81(2). 90–105. 1 indexed citations
4.
Sakai, Toru, et al.. (2024). Precise LULC classification of rural area combining elevational and reflectance characteristics using UAV. Scientific African. 26. e02431–e02431. 1 indexed citations
5.
Iizumi, Toshichika, Kohtaro Iseki, Toru Sakai, et al.. (2023). Increasing heavy rainfall events and associated excessive soil water threaten a protein-source legume in dry environments of West Africa. Agricultural and Forest Meteorology. 344. 109783–109783. 16 indexed citations
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Sakai, Toru, et al.. (2020). Assessment of paddy fields’ damage caused by Cyclone Nargis using MODIS time-series images (2004–2013). Paddy and Water Environment. 7 indexed citations
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Sakai, Toru, et al.. (2016). Climate-Induced Extreme Hydrologic Events in the Arctic. Remote Sensing. 8(11). 971–971. 8 indexed citations
10.
Sakai, Toru, Toshichika Iizumi, Masashi Okada, et al.. (2015). Varying applicability of four different satellite-derived soil moisture products to global gridded crop model evaluation. International Journal of Applied Earth Observation and Geoinformation. 48. 51–60. 18 indexed citations
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Sakai, Toru, et al.. (2009). Accuracy Assessment for Land Cover Classification Through Topographic Correction and Multi-temporal Images. National Remote Sensing Bulletin. 29(4). 567–578. 1 indexed citations
14.
Sakai, Toru, Takahiro Endo, Pranab Baruah, et al.. (2007). Scaling‐up technique for net ecosystem productivity of deciduous broadleaved forests in Japan using MODIS data. Ecological Research. 23(4). 765–775. 16 indexed citations
15.
Takahashi, Takehiko, Y. Awaya, Yasumasa Hirata, et al.. (2007). ASSESSMENT OF LIDAR-DERIVED TREE HEIGHTS ESTIMATED FROM DIFFERENT FLIGHT ALTITUDE DATA IN MOUNTAINOUS FORESTS WITH POOR LASER PENETRATION RATES. 1 indexed citations
16.
Sakai, Toru & Tsuyoshi Akiyama. (2005). Quantifying the spatio-temporal variability of net primary production of the understory species, Sasa senanensis, using multipoint measuring techniques. Agricultural and Forest Meteorology. 134(1-4). 60–69. 29 indexed citations
17.
Ohtsuka, Toshiyuki, Tsuyoshi Akiyama, Yasushi Hashimoto, et al.. (2005). Biometric based estimates of net primary production (NPP) in a cool-temperate deciduous forest stand beneath a flux tower. Agricultural and Forest Meteorology. 134(1-4). 27–38. 78 indexed citations
18.
Sakai, Toru, Nobuko Saigusa, Susumu Yamamoto, & Tsuyoshi Akiyama. (2005). Microsite variation in light availability and photosynthesis in a cool‐temperate deciduous broadleaf forest in central Japan. Ecological Research. 20(5). 537–545. 11 indexed citations
19.
Jia, Shugang, Toru Sakai, Tsuyoshi Akiyama, & Hiroshi Koizumi. (2002). Study on the carbon dynamics of rhizosphere in a cool-temperate climate forest, 1: Relations between topography, vegetation and soil type distribution. 3 indexed citations
20.
Kawamura, Kensuke, Yasushi Hashimoto, Toru Sakai, & Tsuyoshi Akiyama. (2001). Effects of Phenological Changes of Canopy Leaf on the Spatial and Seasonal Variations of Understory Light Environment in a Cool-temperate Deciduous Broad-leaved Forest.. Journal of the Japanese Forest Society. 83(3). 231–237. 17 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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