Hajime Utsugi

1.2k total citations
62 papers, 785 citations indexed

About

Hajime Utsugi is a scholar working on Nature and Landscape Conservation, Plant Science and Global and Planetary Change. According to data from OpenAlex, Hajime Utsugi has authored 62 papers receiving a total of 785 indexed citations (citations by other indexed papers that have themselves been cited), including 32 papers in Nature and Landscape Conservation, 30 papers in Plant Science and 29 papers in Global and Planetary Change. Recurrent topics in Hajime Utsugi's work include Forest ecology and management (23 papers), Plant Water Relations and Carbon Dynamics (22 papers) and Seedling growth and survival studies (14 papers). Hajime Utsugi is often cited by papers focused on Forest ecology and management (23 papers), Plant Water Relations and Carbon Dynamics (22 papers) and Seedling growth and survival studies (14 papers). Hajime Utsugi collaborates with scholars based in Japan, Australia and United Kingdom. Hajime Utsugi's co-authors include Mitsutoshi Kitao, Satoshi Kitaoka, Hiroyuki Tobita, Shigeo Kuramoto, Ryuichi Tabuchi, Kiyoshi Fujimoto, Hiroyuki Tanouchi, Takayoshi Koike, Masatake G. Araki and Yutaka Maruyama and has published in prestigious journals such as PLoS ONE, Scientific Reports and Environmental Pollution.

In The Last Decade

Hajime Utsugi

59 papers receiving 751 citations

Peers

Hajime Utsugi

GPC

NLC

ECOLO

Joshua Mantooth United States

Matthew G. Letts Canada

Kim Naudts Germany

Michael S. Peek United States

Shaun C. Cunningham Australia

Qingkang Li China

Tatsuro Nakaji Japan

Michael Day United States

Edelcílio Marques Barbosa Brazil

Tiebo Cai Canada

Joshua Mantooth United States

Hajime Utsugi

689 ×1.8

GPC

377 ×1.1

367 ×1.2

NLC

251 ×1.1

ECOLO

238 ×1.8

Citations per year, relative to Hajime Utsugi Hajime Utsugi (= 1×) peers Joshua Mantooth

Countries citing papers authored by Hajime Utsugi

Since Specialization

Citations

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

Fields of papers citing papers by Hajime Utsugi

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hajime Utsugi

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

All Works

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20 of 20 papers shown

Harayama, Hisanori, Ikutaro Tsuyama, Mitsutoshi Kitao, et al.. (2023). Effects of Seedling Size, Stock Type, and Mechanical Site Preparation Method on Initial Survival and Growth of Japanese Larch (Larix kaempferi) Seedlings. Forests. 14(4). 784–784. 4 indexed citations

Han, Qingmin, et al.. (2020). High Biomass Productivity of Short-Rotation Willow Plantation in Boreal Hokkaido Achieved by Mulching and Cutback. Forests. 11(5). 505–505. 12 indexed citations

Noguchi, Kyotaro, Sasitorn Poungparn, Pipat Patanaponpaiboon, et al.. (2020). Biomass and Production Rates of Fine Roots in Two Mangrove Stands in Southern Thailand. Japan Agricultural Research Quarterly JARQ. 54(4). 349–360. 7 indexed citations

Kitao, Mitsutoshi, Satoshi Kitaoka, Hisanori Harayama, et al.. (2018). Canopy nitrogen distribution is optimized to prevent photoinhibition throughout the canopy during sun flecks. Scientific Reports. 8(1). 503–503. 24 indexed citations

Yamanoi, Katsumi, Yasuko Mizoguchi, & Hajime Utsugi. (2015). Effects of a windthrow disturbance on the carbon balance of a broadleaf deciduous forest in Hokkaido, Japan. Biogeosciences. 12(23). 6837–6851. 14 indexed citations

Matsuda, Osamu, et al.. (2015). Determination of Seed Soundness in Conifers Cryptomeria japonica and Chamaecyparis obtusa Using Narrow-Multiband Spectral Imaging in the Short-Wavelength Infrared Range. PLoS ONE. 10(6). e0128358–e0128358. 11 indexed citations

Kosugi, Yoshiko, et al.. (2015). Occurrence of stomatal patchiness and its spatial scale in leaves from various sizes of trees distributed in a South-east Asian tropical rainforest in Peninsular Malaysia. Tree Physiology. 35(1). 61–70. 8 indexed citations

Kitao, Mitsutoshi, et al.. (2015). Light compensation points in shade‐grown seedlings of deciduous broadleaf tree species with different successional traits raised under elevated CO₂. Plant Biology. 18(S1). 22–27. 18 indexed citations

Kitao, Mitsutoshi, Hidetaka Tobita, Hajime Utsugi, et al.. (2012). Photosynthetic traits around budbreak in pre-existing needles of Sakhalin spruce (Picea glehnii) seedlings grown under elevated CO2 concentration assessed by chlorophyll fluorescence measurements. Tree Physiology. 32(8). 998–1007. 3 indexed citations

10.

Ishii, Hiroaki, et al.. (2012). Variation in light-intercepting area and photosynthetic rate of sun and shade shoots of two Picea species in relation to the angle of incoming light. Tree Physiology. 32(10). 1227–1236. 20 indexed citations

11.

Watanabe, M., Yoko Watanabe, Satoshi Kitaoka, et al.. (2011). Growth and photosynthetic traits of hybrid larch F1 (Larix gmelinii var. japonica x L. kaempferi) under elevated CO2 concentration with low nutrient availability. Tree Physiology. 31(9). 965–975. 36 indexed citations

12.

Kojima, Toshinori, Yoshiko Tanaka, Shigeru Kato, et al.. (2011). Establishment and Evaluation of a Method for the Estimation of the Water Use Efficiency of a Tree. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN. 44(9). 668–676. 1 indexed citations

13.

Utsugi, Hajime, et al.. (2009). E. camaldulensis Optimal Planting Density in Desert Western Australia in View of Its Photosynthetic Properties. 19(1). 25–28. 1 indexed citations

14.

Kitaoka, Satoshi, Tadashi Sakata, Takayoshi Koike, et al.. (2007). Methane Emission from Leaves of Larch, Birch and Oak Saplings Grown at Elevated CO2 Concentration in Northern Japan-Preliminary Study-. Journal of Agricultural Meteorology. 63(4). 201–206. 9 indexed citations

15.

Utsugi, Hajime, et al.. (2007). Changes in Biomass of Understory with Silvicultural Operations in Abies sachalinensis.. Journal of the Japanese Forest Society. 89(3). 174–182. 1 indexed citations

16.

Utsugi, Hajime, et al.. (2006). The Difference in Leaf Morphological and Photosynthetic Ability of Eucalyptus camaldulensis between Natural Growth and Planted Trees in Desert Western Australia. 15(4). 271–274. 2 indexed citations

17.

Tanouchi, Hiroyuki, et al.. (2006). Water Use Efficiency of Trees in Arid Lands : Plasticity to Water Conditions. 15(4). 267–270. 1 indexed citations

18.

Egashira, Yasuyuki, et al.. (2006). Development of Tree Growth Simulator Based on a Process Model of Photosynthesis for Eucalyptus Camaldulensis in Arid Land. 15(4). 263–266.

19.

Kitao, Mitsutoshi, et al.. (2003). Light‐dependent photosynthetic characteristics indicated by chlorophyll fluorescence in five mangrove species native to Pohnpei Island, Micronesia. Physiologia Plantarum. 117(3). 376–382. 41 indexed citations

20.

Utsugi, Hajime, et al.. (2001). Estimation of Seasonal Change in Leaf Area Index for a Chamaecyparis obtusa Stand. Journal of the Japanese Forest Society. 83(4). 359–362. 1 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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