Name HIROTA Mitsuru
Position Associate Professor
Affiliation Faculty of Life and Environmental Sciences/Doctoral Program in Sustainable Environmental Studies
Supervision Master/Doctor
Office
Email hirota@biol.tsukuba.ac.jp
Telephone
Specializations Carbon cycle and greenhouse gases (GHGs) dynamics in terrestrial ecosystem, Response to environmental change in alpine ecosystem: species, community and ecosystem components
Professional Experience 2009 Associate Professor, University of Tsukuba, Faculty of Life and Environmental Sciences
Research Topics We seek to improve the process-based understanding of carbon dynamics in terrestrial ecosystems by investigating carbon flux and pool. By demonstrating such the parameters and its relationship with various environmental factors, we can not only estimate carbon sink ability with high accuracy, but also demonstrate feature of each ecosystem. Current projects include:
• Response of alpine grassland carbon dynamics to recent environmental changes
• Relationship between biodiversity and ecosystem functioning in high-diversity Tibetan grassland ecosystem
• Island ecosystem restoration focused on decomposition process after the 2000 year eruption on Miyake-jima Island, Japan
• Re-evaluation of carbon sink ability of old-growth forest ecosystems
Publications 【学術論文(査読あり)】
Ohtsuka T, Shizu Y, Hirota M, Yashiro Y, Shugang J, Iimura Y, Koizumi H (2014) Role of coarse woody debris in the carbon cycle of Takayama forest, central Japan. Ecological Research 29: 91-101.
Ohtsuka T, Negishi M, Sugita K, Iimura Y, Hirota M (2013) Carbon cycling and sequestration in a Japanese red pine (Pinus densiflora) forest on lava flow of Mt Fuji. Ecological Research 28: 855-867
Iimura Y, Hirota M, Ida H, Ohtsuka T. (2013) Comparison of quantity and quality of soil organic carbon between matured and gap areas in an old-growth beech forest. Journal of Geography 122: 723-732.
田中 健太, 平尾 章, 鈴木 亮, 飯島 慈裕, 浜田 崇, 尾関 雅章, 廣田 充 (2013) 地球温暖化が山岳域と極域の生態系に与える影響―人工温暖化実験によって何がわかってきたか？―地学雑誌Vol. 122: 628-637.
廣田充, 唐艶鴻（2012）「草原における群集レベルの生態系機能と生物多様性の関係」植物科学の最前線　BSJ-Review 3: 2-10
Kato T, Hirota M, Tang Y, Wada E (2011) Spatial variability of CH4 and N2O fluxes in alpine　ecosystems on the Qinghai-Tibetan Plateau. Atmospheric Environment, 45, 5632-5639.
Hirota M (2011) Haibei Alpine Meadow Ecosystem Research Station, Chinese Academy of Sciences (China).日本生態学会誌, 61(1), 107-112.
Yamamoto A, Hirota M, Suzuki S, Zhang P, Mariko S (2010). Surrounding pressure controlled by water table alters CO2 and CH4 fluxes in the littoral zone of a brackish-water lake. Applied Soil Ecology, 47, 160-166.
Hirota M, Zhang P, Gu S, Shen H, Kuriyama T, Li Y, Tang Y (2010) Small-scale variation in ecosystem CO2 flux in an alpine meadow depends on plant biomass and species richness. Journal of Plant Research, 123, 531-541.
Iimura Y, Fujimoto M, Hirota M, Tamura K, Higashi T, Yonebayashi K, Fujitake N (2010) Effects of ecological succession on surface mineral horizons in Japanese volcanic ash soil. Geoderma, 159 (1-2), 122-130.
Hirota M, Zhang P, Gu S, Du M, Shimono A, Shen H, Li Y, Tang Y (2009) Altitudinal variation of ecosystem CO2 fluxes in an alpine grassland from 3600 to 4200 m. Journal Plant Ecology, 2, 197-205.
Zhang P, Hirota M, Shen H, Yamamoto A, Mariko S, Tang Y (2009) Characterization of CO2 flux in three Kobresia meadows differing in dominant species. Journal Plant Ecology, 2, 187-196.
Hirose D, Shirouzu T, Hirota M, Ohtsuka T, Senga Y, Du M, Shimono A, Zhang X (2009) Species richness and species composition of fungal communities associated with cellulose decomposition at different altitudes on the Tibetan Plateau. Journal Plant Ecology, 2, 217-224.
Zhang P, Tang Y, Hirota M, Yamamoto A, Mariko S (2009) Use of a regression method to partition sources of ecosystem respiration in an alpine meadow. Soil Biology and Biochemistry, 41, 663-670.
Yamamoto A, Hirota M, Suzuki S, Oe Y, Zhang P, Mariko S (2009) Effects of tidal fluctuations on CO2 and CH4 Fluxes in the littoral zone of a Brackish-water lake. Limnology, 10, 229-237.
Ohtsuka T, Hirota M, Zhang X, Shimono A, Senga Y, Du M, Yonemura S, Kawashima S, Tang Y (2008) Soil organic carbon pools in alpine to nival zones along an altitudinal gradient (4400-5300 m) on the Tibetan Plateau. Polar Science, 2, 277-285.
Zhang P, Tang Y, Hirota M, Yamamoto A, Mariko S (2009) Use of a regression method to partition sources of ecosystem respiration in an alpine meadow. Soil Biology and Biochemistry, 41, 663-670.
Hirota M, Kawada K, Hu Q, Kato T, Hirata S, Mo W, Cao G, Mariko S (2007) Net primary productivity and spatial distribution of vegetation in an alpine wetland, Qinghai-Tibetan Plateau. Limnology, 8, 161-170, 2007.
Hirota M, Senga Y, Seike Y, Nohara S, Kunii H (2007) Fluxes of carbon dioxide, methane and nitrous oxide in two contrastive fringing zones of coastal lagoon, Lake Nakaumi, Japan. Chemosphere, 68, 597-603.
Hirota M, Tang Y, Hu Q, Kato T, Hirata S, Mo W, Cao G, Mariko S (2006) Carbon dioxide dynamics and controls in a deep-water wetland on the Qinghai-Tibetan Plateau. Ecosystems, 9, 673-688.
Kato T, Tang Y, Gu S, Hirota M, Du M, Li Y, Zhao X (2006) Temperature plays a major role in controlling ecosystem CO2 exchange in alpine meadow on the Qinghai-Tibetan Plateau. Global Change Biology, 12, 1285-1298.
Hirota M, Tang Y, Hu Q, Kato T, Hirata S, Mo W, Cao G, Mariko S (2005) The potential importance of grazing to the fluxes of carbon dioxide and methane in an alpine wetland on the Qinghai-Tibetan Plateau. Atmospheric Environment, 39, 5255-5259.
廣田充, 鞠子茂 (2005) 土壌におけるCH4の放出および吸収の定量化：陸上生態系における炭素フラックス調査：現状と今後の課題. 日本生態学会誌, 55号, 141-150.
Kato T, Hirota M, Tang Y, Cui X, Li Y, Zhao X, Oikawa T (2005) Strong temperature dependence and no moss photosynthesis in winter CO2 flux for a Kobresia meadow on the Qinghai-Tibetan Plateau. Soil Biology and Biochemistry, 37, 1966-1969.
Hirota M, Tang Y, Hu Q, Hirata S, Kato T, Mo W, Cao G, Mariko S (2004) Methane emissions from different vegetation zones in a Qinghai-Tibetan Plateau wetland. Soil Biology and Biochemistry, 36, 737-748.
Kato T, Tang Y, Gu S, Hirota M, Cui X, Du M, Li Y, Zhao X, Oikawa T (2004) Seasonal patterns of gross primary production and ecosystem respiration in an alpine meadow ecosystem on the Qinghai-Tibetan Plateau, China. Journal of Geophysical Research Atmosphere, 109(D12), D12109, doi:10.1029/2003JD003951.
Kato T, Tang Y, Gu S, Cui X, Hirota M, Du M, Li Y, Zhao X, Oikawa T (2004) Carbon dioxide exchange between the atmosphere and an alpine meadow ecosystem on the Qinghai-Tibetan Plateau, China. Agricultural and Forest Meteorology, 124, 121-134.
Hirota M, Tsuchiya T (2003) Indirect method to estimate convective gas flow culms of a Phragmites australis stand. Limnology, 4, 149-153.
Mariko S, Kibe T, Sekikawa S, Hirota M, Kinoshita N, Mochizuki K, Oikawa T (2003) In situ measurement of soil respiration using the open-top chamber technique. Journal of the Japanese Agricultural Systems, 19, 160-165.

（著書など）
鞠子茂，廣田充，川田清和，浦野忠朗（分担執筆）第7章「草原生態系の炭素循環」草原の科学　中村徹編 p. 81-97. 筑波大学出版

（紀要など）
飯村康夫、廣田充、井田秀行、大塚俊之 (2012) 志賀高原カヤノ平ブナ成熟林における土壌有機物の特徴．志賀自然教育研究施設研究業績 49: 1-5.
廣田充、八代裕一郎、飯村康夫、志津庸子、大塚俊之、井田秀行（2011）志賀高原カヤの平ブナ林における炭素循環モニタリングⅠ.時空間的に不均一な土壌呼吸量の測定法の検討．志賀自然教育研究施設研究業績 48: 9-14
Iimura Y, Hirota M, Tamura K, Higashi T, and Fujitake N. (2010) Effects of ecological succession on chemical characteristics of humic and fulvic acids in a Japanese volcanic ash soil. Proceedings of 19th World Congress of Soil Science, Brisbane, Australia.
Courses at MES/DSES Introduction to Environmental Symbiotic Studies, Terrestrial Ecosystem Ecology
Courses at Other Programs Fundamental Biology
Laboratory I
Seminar on Community Ecology AI
Seminar on Community Ecology BI
Seminar on Community Ecology CI
Seminar on Community Ecology DI
Methodology on Community Ecology AI
Methodology on Community Ecology BI
Thesis Research in Community Ecology I
Ecology
Laboratory
Seminar on Biology of Organism Diversity CI
Seminar on Biology of Organism Diversity DI
Seminar on Biology of Organism Diversity EI
Thesis Research in Biology of Organism Diversity I
Advanced Biology of Organism Diversity I
Advanced Biology of Organism Diversity II
Fundamental Biology
Laboratory II
Plant Ecology II
Biology II
Seminar on Community Ecology AII
Seminar on Community Ecology BII
Seminar on Community Ecology CII
Seminar on Community Ecology DII
Methodology on Community Ecology AII
Methodology on Community Ecology BII
Thesis Research in Community Ecology II
Observe & measure ”full of life” in forest & grassland
Seminar on Biology of Organism Diversity CII
Seminar on Biology of Organism Diversity DII
Seminar on Biology of Organism Diversity EII
Thesis Research in Biology of Organism Diversity II
Fundamental Biology
Laboratory III
Plant Ecology III
Laboratory in Biology
Technical English AIII
Seminar on Community Ecology AIII
Seminar on Community Ecology BIII
Seminar on Community Ecology CIII
Seminar on Community Ecology DIII
Methodology on Community Ecology AIII
Methodology on Community Ecology BIII
Thesis Research in Community Ecology III
Seminar on Biology of Organism Diversity CIII
Seminar on Biology of Organism Diversity DIII
Seminar on Biology of Organism Diversity EIII
Thesis Research in Biology of Organism Diversity III
Plant Ecology _T
TRIOS http://www.trios.tsukuba.ac.jp/en/researcher/0000001397
Lab Terrestrial Ecology Laboratory
Lab URL http://www.tee-hirotalab.com/
Private Web
Private Web URL