Non-destructive estimation of tree root system to mitigate natural disaster

• Project/Area Number: 25252027
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Forest science
• Research Institution: Nagoya University
• Principal Investigator: HIRANO Yasuhiro 名古屋大学, 環境学研究科, 准教授 (60353827)
• Co-Investigator(Kenkyū-buntansha): 谷川 東子 国立研究開発法人森林研究・整備機構, 森林総合研究所関西支所, 主任研究員 (10353765) ; 大橋 瑞江 兵庫県立大学, 環境人間学部, 教授 (30453153) ; 池野 英利 兵庫県立大学, 環境人間学部, 教授 (80176114) ; 檀浦 正子 京都大学, 地球環境学堂, 助教 (90444570) ; 山瀬 敬太郎 兵庫県立農林水産技術総合センター, 森林林業技術センター, 研究主幹 (90463413)
• Project Period (FY): 2013-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥40,950,000 (Direct Cost: ¥31,500,000、Indirect Cost: ¥9,450,000); Fiscal Year 2017: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000); Fiscal Year 2016: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000); Fiscal Year 2015: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000); Fiscal Year 2014: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000); Fiscal Year 2013: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
• Keywords: 林学 / 土壌 / 森林工学 / 減災 / 樹木根 / 地中レーダ / 津波 / 根系強度 / 国際研究者交流 / フィンランド

Outline of Final Research Achievements

Evaluation of development and resistance of tree root system is needed to enhance the effect of mitigation disaster in forest ecosystems. This study aimed to estimate development of root system using ground penetrating radar (GPR) and further to propose the method for estimating root system resistance nondestructively.
Thickness of leaf litter and angle between root growth and radar scanning are limiting factors for tree root detection using GPR. Development of horizontal root systems in coastal Pinus thunbergii could be estimated using GPR. Plate root systems were found in soils with shallower water table. Critical turning moments were significantly correlated with the depth of root-soil plate. The results in this study can propose a nondestructive method to estimate of root system resistance using estimated root diameter by GPR.

Research Products

• [Int'l Joint Research] 北京師範大学(中国)
• [Journal Article] Quantification of the contrasting root systems of Pinus thunbergii in soils with different groundwater levels in a coastal forest in Japan (2018)
  • Author(s): Hirano Yasuhiro、Todo Chikage、Yamase Keitaro、Tanikawa Toko、Dannoura Masako、Ohashi Mizue、Doi Ryuusei、Wada Ryusei、Ikeno Hidetoshi
  • Journal Title: Plant and Soil Volume: - Issue: 1-2 Pages: 327-337
  • DOI: 10.1007/s11104-018-3630-9
  • Peer Reviewed
• [Journal Article] Root distribution and pull-out resistance of <I>Quercus serrata</I> Murray at slopes (2017)
  • Author(s): 山瀬 敬太郎, 藤堂 千景, 矢倉 資喜, 平野 恭弘
  • Journal Title: Journal of the Japanese Society of Revegetation Technology Volume: 43 Issue: 1 Pages: 133-137
  • DOI: 10.7211/jjsrt.43.133
  • NAID: 130006507453
  • ISSN: 0916-7439, 1884-3670
  • Peer Reviewed
• [Journal Article] Leaf litter thickness, but not plant species, can affect root detection by ground penetrating radar (2016)
  • Author(s): Tanikawa, T., Ikeno, T., Dannoura, M., Yamase K., Aono, K., Hirano, Y.
  • Journal Title: Plant and Soil Volume: 408 Issue: 1-2 Pages: 271-283
  • DOI: 10.1007/s11104-016-2931-0
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] 同心円状レーダ探索による海岸に生育するクロマツ個体の水平根の広がりの検出 (2016)
  • Author(s): 大橋瑞江, 柿添哲也, 池野英利, 山瀬敬太郎, 谷川東子, 檀浦正子, 青野健治, 藤堂千景, 平野恭弘
  • Journal Title: 日本緑化工学会誌 Volume: 41 Pages: 385-390
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Calibrating the impact of root orientation on root quantification using ground-penetrating radar (2015)
  • Author(s): Guo L, Wu Y, Chen J, Hirano Y, Tanikawa T, Li W, Cui X
  • Journal Title: Plant and Soil Volume: 395 Issue: 1-2 Pages: 289-305
  • DOI: 10.1007/s11104-015-2563-9
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] 低木樹種2種の根系による崩壊防止力の検討 (2015)
  • Author(s): 山瀬敬太郎，藤堂千景，平野恭弘
  • Journal Title: 日本緑化工学会誌 Volume: 41 Pages: 15-20
  • NAID: 130005147589
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] 異なる土壌環境下における根系構造と引き抜き抵抗力との関係 (2015)
  • Author(s): 山瀬敬太郎, 谷川東子, 池野英利, 藤堂千景, 大橋瑞江, 檀浦正子, 平野恭弘
  • Journal Title: 日本緑化工学会誌 Volume: 41 Pages: 301-307
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] 間伐がスギの最大引き倒し抵抗モーメントにもたらす影響 (2015)
  • Author(s): 藤堂千景・山瀬敬太郎・谷川東子・大橋瑞江・池野英利・檀浦正子・平野恭弘
  • Journal Title: 日本緑化工学会誌 Volume: 41 Pages: 308-314
  • Peer Reviewed
• [Journal Article] 減災の観点から樹木根系を非破壊的に推定する地中レーダ法の現状と課題 (2015)
  • Author(s): 平野恭弘, 山瀬敬太郎, 谷川東子, 檀浦正子, 大橋瑞江, 藤堂千景, 池野英利
  • Journal Title: 日本緑化工学会誌 Volume: 41 Pages: 319-325
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Reply to:“Comment on root orientation can affect detection accuracy of ground-penetrating radar”. (2014)
  • Author(s): Tanikawa T, Dannoura M, Yamase K, Ikeno H, Hirano Y
  • Journal Title: Plant and Soil Volume: 380 Issue: 1-2 Pages: 445-450
  • DOI: 10.1007/s11104-014-2136-3
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Root orientation can affect detection accuracy of ground-penetrating radar. (2013)
  • Author(s): Tanikawa, T., Hirano, Y., Dannoura, M., Yamase, K., Aono, K., Ishii, M., Igarashi, T., Ikeno, H., Kanazawa, Y.
  • Journal Title: Plant Soil Volume: 373 Issue: 1-2 Pages: 317-327
  • DOI: 10.1007/s11104-013-1798-6
  • Peer Reviewed
• [Presentation] スギ、ケヤキ、クロマツにおける根系構造と引き倒しモーメントとの関係 (2018)
  • Author(s): 藤堂千景 池野英利 山瀬敬太郎 谷川東子 大橋瑞江 檀浦正子 平野恭弘
  • Organizer: 第129回森林学会大会
• [Presentation] ３Dプリンタを用いた模型実験による樹木根の形状と引き倒し抵抗力との関係 (2018)
  • Author(s): 谷河澪 池野英利 平野恭弘 藤堂千景 山瀬敬太郎 谷川東子 檀浦正子 大橋瑞江
  • Organizer: 第129回森林学会大会
• [Presentation] 鳥瞰写真から得られた水平根情報に基づく樹木根系の再構築 (2018)
  • Author(s): 江川健太 富田隆弘 大橋瑞江 藤堂千景 山瀬敬太郎 谷川東子 檀浦正子 平野恭弘 池野英利
  • Organizer: 第129回森林学会大会
• [Presentation] 樹木の根鉢と根系構造の関係 (2017)
  • Author(s): 藤堂千景、山瀬敬太郎、谷川東子、大橋瑞江、池野英利、檀浦正子、平野恭弘
  • Organizer: 第128回日本森林学会大会
  • Place of Presentation: 鹿児島大学
  • Year and Date: 2017-03-27
• [Presentation] 地中レーダを用いたクロマツ根系の検出と再構築 (2017)
  • Author(s): 大橋瑞江、鬮橋心、池野英利、藤堂千景、山瀬敬太郎、谷川東子、檀浦正子、富田隆弘、平野恭弘
  • Organizer: 第128回日本森林学会大会
  • Place of Presentation: 鹿児島大学
  • Year and Date: 2017-03-27
• [Presentation] 樹木の根系構造と引き抜き抵抗力 (2017)
  • Author(s): 山瀬敬太郎
  • Organizer: 第128回日本森林学会大会
  • Place of Presentation: 鹿児島大学
  • Year and Date: 2017-03-27
• [Presentation] Estimates of roots using ground penetrating radar and root anchorage in a coastal Pinus thunbergii forest. (2017)
  • Author(s): Hirano, Y., Tokoro C., Todo, C., Yamase, K., Tanikawa, T., Ohashi, M., Miyatani, K., Doi, R., Dannoura, M., Ikeno, H.
  • Organizer: IUFRO 125th anniversary congress
  • Int'l Joint Research
• [Presentation] Contrasting root systems of Pinus thunbergii in soils with different groundwater levels in a coastal forest. (2017)
  • Author(s): Hirano, Y., Todo, C., Yamase, K., Tanikawa, T., Dannoura, M., Ohashi, M., Doi, R., Wada, R., Ikeno, H.
  • Organizer: 7th International Symposium on Physiological Processes in Roots of Woody Plants
  • Int'l Joint Research
• [Presentation] Reconstruction of root systems of Cryptomeria japonica using coordinate points and root diameters. (2017)
  • Author(s): Ohashi, M., Ikeno, H., Sekihara, K., Tanikawa, T., Dannoura, M., Yamase, K., Todo, C., Tomita, T., Hirano, Y.
  • Organizer: 7th International Symposium on Physiological Processes in Roots of Woody Plants
  • Int'l Joint Research
• [Presentation] スギ林における地中レーダ探査画像の再現性についての検討 (2017)
  • Author(s): 平野恭弘 山瀬敬太郎 谷川東子 藤堂千景 檀浦正子 大橋瑞江 池野英利
  • Organizer: 第 46 回根研究集会
• [Presentation] 樹木根研究の最前線～特に減災上の観点から～ (2017)
  • Author(s): 平野恭弘
  • Organizer: 兵庫県森林林業フォーラム
  • Invited
• [Presentation] 樹木の根系を掘らずに推定する‐地中レーダを用いた非破壊的評価- (2017)
  • Author(s): 平野恭弘
  • Organizer: 第12回道総研防災研究会
  • Invited
• [Presentation] 地中探査用レーダを用いたクロマツ水平根の予測位置と根系検出精度 (2016)
  • Author(s): 平野恭弘、所千恵、谷川東子、山瀬敬太郎、藤堂千景、大橋瑞江、檀浦正子、宮谷紘平、土居龍成、池野英利
  • Organizer: 第45回根研究集会
  • Place of Presentation: 岡山大学資源植物科学研究所
  • Year and Date: 2016-10-01
• [Presentation] 海岸クロマツ林における地中レーダ法を用いた根系推測と引き倒し抵抗力 (2016)
  • Author(s): 藤堂千景，所千恵，谷川東子，山瀬敬太郎，池野英利，大橋瑞江，檀浦正子，平野恭弘
  • Organizer: 第127回日本森林学会大会
  • Place of Presentation: 日本大学生物資源学部
  • Year and Date: 2016-03-27
• [Presentation] レーダを用いた樹木根系の非かく乱調査－海岸クロマツ個体の水平根の広がり－ (2016)
  • Author(s): 大橋瑞江，池野英利，柿添哲也，山瀬敬太郎，谷川東子，檀浦正子，藤堂千景，平野恭弘
  • Organizer: 第63回日本生態学会大会
  • Place of Presentation: 仙台国際センター
  • Year and Date: 2016-03-20
• [Presentation] Root detection of various tree species using ground penetrating radar. (2014)
  • Author(s): Hirano Y, Tanikawa T, Dannoura M, Yamase K, Aono K, Ikeno H
  • Organizer: What are we linking? The 1st annual meeting of Cost Action FP1305 Biolink
  • Place of Presentation: University of Reading, UK
  • Year and Date: 2014-11-05
• [Presentation] Development of image processing scheme for morphological properties of woody root. (2014)
  • Author(s): Ikeno H, Ohashi M, Kimura T, Todo C, Yamase K, Dannoura M, Tanikawa T, Hirano Y
  • Organizer: 6th International symposium on physiological processes in roots of woody plants
  • Place of Presentation: 名古屋大学
  • Year and Date: 2014-09-11
• [Presentation] Non-destructive detection of tree coarse roots using ground-penetrating radar. (2014)
  • Author(s): Hirano Y, Dannoura M, Yamase K, Tanikawa T, Aono K, Ikeno H, Ohashi M, Kanazawa Y
  • Organizer: 6th International symposium on physiological processes in roots of woody plants
  • Place of Presentation: 名古屋大学
  • Year and Date: 2014-09-09
• [Presentation] Interference of leaf litter layer with detection of tree roots by ground-penetrating radar. (2014)
  • Author(s): Tanikawa T, Dannoura M, Yamase K, Aono K, Ikeno H, Hirano Y
  • Organizer: 6th International symposium on physiological processes in roots of woody plants
  • Place of Presentation: 名古屋大学
  • Year and Date: 2014-09-09
• [Presentation] Detection of coarse root structure of Japnaese black pine (Pinus thunberigii) growing in a sea coast in Aichi prefecture, Japan (2014)
  • Author(s): Kakizoe T, Ikeno H, Hirano Y, Tanikawa T, Dannoura M, Yamase K, Aono K, Todo C, Ohashi M
  • Organizer: 6th International symposium on physiological processes in roots of woody plants
  • Place of Presentation: 名古屋大学
  • Year and Date: 2014-09-09
• [Presentation] ull-out resistance of coarse root segments is related to root architecture (2014)
  • Author(s): Yamase K, Todo C, Ohashi M, Ikeno H, Tanikawa T, Dannoura M, Hirano Y
  • Organizer: 6th International symposium on physiological processes in roots of woody plants
  • Place of Presentation: 名古屋大学
  • Year and Date: 2014-09-09
• [Presentation] Contribution of horizontal roots to tree root anchorage (2014)
  • Author(s): Todo C, Yamase K, Hirano Y
  • Organizer: 6th International symposium on physiological processes in roots of woody plants
  • Place of Presentation: 名古屋大学
  • Year and Date: 2014-09-09
• [Presentation] 愛知県のクロマツの海岸林における樹木根の形態の検出 (2014)
  • Author(s): 柿添哲也・池野英利・平野恭弘・谷川東子・檀浦正子・山瀬敬太郎・青野健治・藤堂千景・大橋瑞江
  • Organizer: 第41回根研究集会
  • Place of Presentation: 名古屋大学
  • Year and Date: 2014-09-07
• [Presentation] Detection frequency can vary with orientation of roots in Pinus thunbergii forests using ground penetrating radar
  • Author(s): Hirano, Y., Dannoura, M., Tanikawa, T., Yamase, K., Aono, K., Ikeno, H.
  • Organizer: Final conference COST Action FP0803, Belowground carbon turnover in European forests
  • Place of Presentation: Bordeaux, France
• [Presentation] 生態系サービスから見た樹木の根系
  • Author(s): 平野恭弘
  • Organizer: 2013年生態工学会年次大会
  • Place of Presentation: 玉川大学（東京）
  • Invited
• [Remarks] 樹木の根を掘らずに視る－地中レーダ探査の減災への応用－を開催しました。
  • URL: http://www.env.nagoya-u.ac.jp/news/pub/20161216.pdf
• [Remarks] 「樹木の根を掘らずに視る」公開講演会を神戸芸術センターで開催しました。
  • URL: http://hyogo-nourinsuisangc.jp/sinrin/images/GPRseminar.pdf
• [Remarks] 「樹木の根を掘らずに視る－地中レーダ探査の減災への応用-」公開講演会を開催しました
  • URL: http://www2.ges.kyoto-u.ac.jp/news/12525/