Takuma Watari

2.2k total citations · 2 hit papers
32 papers, 1.5k citations indexed

About

Takuma Watari is a scholar working on Mechanical Engineering, Environmental Engineering and Industrial and Manufacturing Engineering. According to data from OpenAlex, Takuma Watari has authored 32 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Mechanical Engineering, 20 papers in Environmental Engineering and 17 papers in Industrial and Manufacturing Engineering. Recurrent topics in Takuma Watari's work include Extraction and Separation Processes (22 papers), Environmental Impact and Sustainability (20 papers) and Recycling and Waste Management Techniques (16 papers). Takuma Watari is often cited by papers focused on Extraction and Separation Processes (22 papers), Environmental Impact and Sustainability (20 papers) and Recycling and Waste Management Techniques (16 papers). Takuma Watari collaborates with scholars based in Japan, Australia and United Kingdom. Takuma Watari's co-authors include Keisuke Nansai, Kenichi Nakajima, Benjamin McLellan, Damien Giurco, Ryosuke Yokoi, Elsa Dominish, Eiji Yamasue, Zhi Cao, Masaharu Motoshita and Jonathan M. Cullen and has published in prestigious journals such as Nature Communications, Environmental Science & Technology and Energy & Environmental Science.

In The Last Decade

Takuma Watari

29 papers receiving 1.5k citations

Hit Papers

align trajectories

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.

Review of critical metal dynamics to 2050 for 48 elements

2020 287 citations Takuma Watari, Keisuke Nansai et al. Resources Conservation and Recycling profile →
Efficient use of cement and concrete to reduce reliance on supply-side technologies for net-zero emissions

2022 138 citations Takuma Watari, Zhi Cao et al. Nature Communications profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Takuma Watari Japan	17	757	513	402	261	187	32	1.5k
Stephen Northey Australia	20	959 1.3×	492 1.0×	481 1.2×	550 2.1×	167 0.9×	37	2.0k
Guiomar Calvo Spain	14	665 0.9×	406 0.8×	273 0.7×	119 0.5×	289 1.5×	34	1.2k
Ayman Elshkaki China	26	1.1k 1.4×	765 1.5×	606 1.5×	237 0.9×	314 1.7×	47	2.2k
Luis A. Tercero Espinoza Germany	20	696 0.9×	330 0.6×	539 1.3×	125 0.5×	172 0.9×	36	1.3k
Amund N. Løvik Switzerland	14	466 0.6×	414 0.8×	352 0.9×	195 0.7×	132 0.7×	21	1.1k
Antoine Beylot France	21	332 0.4×	599 1.2×	466 1.2×	281 1.1×	154 0.8×	50	1.4k
Christoph Helbig Germany	22	1.0k 1.3×	512 1.0×	680 1.7×	216 0.8×	118 0.6×	37	1.7k
E. M. Harper United States	14	1.3k 1.8×	510 1.0×	807 2.0×	212 0.8×	178 1.0×	15	2.0k
Nils Thonemann Germany	18	386 0.5×	490 1.0×	250 0.6×	109 0.4×	299 1.6×	39	1.7k
Yasunari Matsuno Japan	25	1.1k 1.4×	803 1.6×	866 2.2×	169 0.6×	121 0.6×	137	2.0k

Countries citing papers authored by Takuma Watari

Since Specialization

Citations

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

Fields of papers citing papers by Takuma Watari

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Takuma Watari

This figure shows the co-authorship network connecting the top 25 collaborators of Takuma Watari. A scholar is included among the top collaborators of Takuma Watari 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 Takuma Watari. Takuma Watari is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Watari, Takuma, et al.. (2025). Mapping sand flows and stocks. One Earth. 8(2). 101197–101197.

Watari, Takuma, Tomer Fishman, Hanspeter Wieland, & Dominik Wiedenhofer. (2025). Global stagnation and regional variations in steel recycling. Resources Conservation and Recycling. 220. 108363–108363. 1 indexed citations

Watari, Takuma & Tomer Fishman. (2025). Steel flows and stocks in the Global South highlight development gaps. Environmental Research Infrastructure and Sustainability. 5(3). 35016–35016.

Kosai, Shoki, et al.. (2024). Circular economy can mitigate rising mining demand from global vehicle electrification. Resources Conservation and Recycling. 209. 107748–107748. 8 indexed citations

Watari, Takuma, et al.. (2024). Net-Zero Embodied Carbon in Buildings with Today’s Available Technologies. Environmental Science & Technology. 58(4). 1793–1801. 16 indexed citations

Watari, Takuma, et al.. (2023). A review of gold production, mercury consumption, and emission in artisanal and small-scale gold mining (ASGM). Resources Policy. 81. 103370–103370. 25 indexed citations

Watari, Takuma, Zhi Cao, André Cabrera Serrenho, & Jonathan M. Cullen. (2023). Growing role of concrete in sand and climate crises. iScience. 26(5). 106782–106782. 30 indexed citations

Watari, Takuma, Damien Giurco, & Jonathan M. Cullen. (2023). Scrap endowment and inequalities in global steel decarbonization. Journal of Cleaner Production. 425. 139041–139041. 11 indexed citations

Song, Lulu, Stijn van Ewijk, Eric Masanet, et al.. (2023). China’s bulk material loops can be closed but deep decarbonization requires demand reduction. Nature Climate Change. 13(10). 1136–1143. 35 indexed citations

10.

Watari, Takuma, et al.. (2023). Feasible supply of steel and cement within a carbon budget is likely to fall short of expected global demand. Nature Communications. 14(1). 7895–7895. 39 indexed citations

11.

Watari, Takuma, et al.. (2023). Limited quantity and quality of steel supply in a zero-emission future. Nature Sustainability. 6(3). 336–343. 55 indexed citations

12.

Hoang, Han, Tomonori Ishigaki, Takuma Watari, Masato Yamada, & Ken Kawamoto. (2022). Current state of building demolition and potential for selective dismantling in Vietnam. Waste Management. 149. 218–227. 14 indexed citations

13.

Nansai, Keisuke & Takuma Watari. (2022). Innovative Changes in Material Use for Transition to a Carbon-neutral Society. Material Cycles and Waste Management Research. 33(1). 17–24. 1 indexed citations

14.

Watari, Takuma, et al.. (2022). Efficient use of cement and concrete to reduce reliance on supply-side technologies for net-zero emissions. Nature Communications. 13(1). 4158–4158. 138 indexed citations breakdown →

15.

Watari, Takuma, Keisuke Nansai, & Kenichi Nakajima. (2021). Contraction and convergence of in-use metal stocks to meet climate goals. Global Environmental Change. 69. 102284–102284. 23 indexed citations

16.

Watari, Takuma, Keisuke Nansai, Damien Giurco, et al.. (2020). Global Metal Use Targets in Line with Climate Goals. Environmental Science & Technology. 54(19). 12476–12483. 51 indexed citations

17.

Watari, Takuma, Benjamin McLellan, Damien Giurco, Elsa Dominish, & Tetsuo Tezuka. (2020). Environmental impacts and demand-supply balance of minerals for the transition to a low-carbon energy system. International Journal of Smart Grid and Clean Energy. 189–197. 3 indexed citations

18.

Yokoi, Ryosuke, Keisuke Nansai, Kenichi Nakajima, Takuma Watari, & Masaharu Motoshita. (2020). Responsibility of consumers for mining capacity: decomposition analysis of scarcity-weighted metal footprints in the case of Japan. iScience. 24(1). 102025–102025. 6 indexed citations

19.

Watari, Takuma, Keisuke Nansai, & Kenichi Nakajima. (2020). Review of critical metal dynamics to 2050 for 48 elements. Resources Conservation and Recycling. 155. 104669–104669. 287 indexed citations breakdown →

20.

Watari, Takuma, et al.. (2018). Analysis of Potential for Critical Metal Resource Constraints in the International Energy Agency’s Long-Term Low-Carbon Energy Scenarios. Minerals. 8(4). 156–156. 82 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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