Conservation measures for biodiversity in sandy coasts: A case study in the San'in Kaigan National Park, western Japan

• Project/Area Number: 24780027
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Horticulture/Landscape architecture
• Research Institution: University of Hyogo
• Principal Investigator: KURODA Asumo 兵庫県立大学, 自然・環境科学研究所, 講師 (30433329)
• Research Collaborator: SAWADA Yoshihiro 兵庫県立大学, 緑環境景観マネジメント研究科, 准教授 (40435897)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000); Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
• Keywords: 海岸植生 / 海岸植物 / 生物多様性 / 保全管理

Outline of Final Research Achievements

For planning effective conservation measures for coastal plants on a regional scale, knowledge on the major factors influencing species richness is essential. In the sandy coastal sites in and around the San'in Kaigan National Park, I recorded all plant species established on each of the 46 sandy coastal sites within the study area. Generalized linear model analysis was used to examine the effects of environmental variables on the species richness and the presence/absence of individual native coastal plants in the sandy coastal sites. The results suggested that larger sandy coasts with more developed sand dunes have greater species richness of coastal plants, and that the preservation of such sandy coastal sites is primarily important for promoting the conservation of coastal plants on a regional scale. The reduction and leveling of sandy coasts significantly decreased the species richness of coastal plants dependent on the coastal environment for their survival and establishment.

Research Products

• [Presentation] 絶滅危惧植物トウテイランの分布と生態 (2014)
  • Author(s): 鐵慎太郎・黒田有寿茂・石田弘明
  • Organizer: 第11回環境人間学フォーラム
  • Place of Presentation: 兵庫県立大学大学院環境人間学研究科, 姫路市
  • Year and Date: 2014-11-13
• [Presentation] Factors influencing plant species richness in sandy coasts: A case study in the Sanin Kaigan National Park, western Japan (2014)
  • Author(s): Kuroda, A. & Sawada, Y.
  • Organizer: 57th Annual Symposium of the International Association for Vegetation Science
  • Place of Presentation: The University of Western Australia, Perth
  • Year and Date: 2014-09-01