Should we consider spatial variability of soil moisture when evaluating the risk for landslide?

• Project/Area Number: 25850109
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Forest science
• Research Institution: Kyushu University
• Principal Investigator: Shinohara Yoshinori 九州大学, (連合)農学研究科(研究院), 助教 (10615446)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2014: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000); Fiscal Year 2013: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
• Keywords: 土壌水分 / 表層崩壊 / 根系 / 浸透 / 雨水配分 / モウソウチク / 災害 / 水文過程

Outline of Final Research Achievements

The objective of this study was to verify relationships between landslides and spatial variations in the soil water content. The achievement of this study are as follow. (1) We did not find the evidence that possibility of landslides in bamboo forests are higher than that in other forest types. (2) We developed a model for estimating throughfall and stemflow in coniferous plantations. (3) We obtained data for spatial variations in the soil water content in moso-bamboo and Japanese cypress forests.

Research Products

• [Journal Article] Comparative modeling of the effects of intensive thinning on canopy interception loss in a Japanese cedar (Cryptomeria japonica D. Don) forest of western Japan (2015)
  • Author(s): Shinohara, Y., Levia, D.F., Komatsu, H., Nogata, M., Otsuki K.
  • Journal Title: Agricultural and Forest Meteorology Volume: 29 Pages: 5120-5134
  • DOI: 10.1016/j.agrformet.2015.08.257
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Comparisons of soil water content between a Moso bamboo (Phyllostachys pubescens) forest and a natural broadleaved forest in western Japan. (2015)
  • Author(s): Shinohara, Y., Otsuki, K.
  • Journal Title: Plant Species Biology Volume: 30 Issue: 2 Pages: 96-103
  • DOI: 10.1111/1442-1984.12076
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] モウソウチク林の拡大が林地の公益的機能に与える影響：総合的理解に向けて (2014)
  • Author(s): 篠原慶規，久米朋宣，市橋隆自，小松光，大槻恭一
  • Journal Title: 日本森林学会誌 Volume: 96 Pages: 351-361
  • NAID: 130005063849
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Presentation] モウソウチク林における土壌染色実験－浸透過程の可視化－ (2016)
  • Author(s): 篠原 慶規, 平岡 真合乃, 五味 高志
  • Organizer: 日本森林学会大会
  • Place of Presentation: 神奈川県藤沢市
  • Year and Date: 2016-03-29
• [Presentation] Application of Three Canopy Interception Models in a Japanese Cedar (Cryptomeria japonica D. Don) Forest Before and After Intensive Thinning (2015)
  • Author(s): Yoshinori Shinohara, Deiphis F Levia, Hikaru Komatsu, Mari Nogata, Kyoichi Otsuki
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San francisco, CA, USA
  • Year and Date: 2015-12-14
  • Int'l Joint Research
• [Presentation] スギ人工林における間伐後の蒸散量と遮断蒸発量の変化 (2014)
  • Author(s): 篠原慶規，小松光，鶴田健二，野方麻里，大槻恭一
  • Organizer: 水文・水資源学会大会
  • Place of Presentation: 宮崎グリーンスフィア壱番館（KITEN）
  • Year and Date: 2014-10-25
• [Presentation] スギ人工林における強度間伐が雨水配分に与える影響
  • Author(s): 篠原慶規，小松光，野方麻里，大槻恭一
  • Organizer: 水文・水資源学会大会
  • Place of Presentation: 神戸大学
• [Presentation] Effects of intensive thinning on rainfall partitioning in a Cryptomeria japonica plantation
  • Author(s): Shinohara, Y, Nogata M, Komatsu H, Otsuki K
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Francisco
• [Remarks] 篠原慶規のウェブページ
  • URL: http://ffpsc.agr.kyushu-u.ac.jp/shinohara/