2021 Fiscal Year Final Research Report
Assessment of the effectiveness of landscape conservation activities to curb grassland encroachment for resurrection of sand movement at the Tottori Sand Dunes natural monument
| Project/Area Number |
19K06116
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 39070:Landscape science-related
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| Research Institution | Osaka Institute of Technology |
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Principal Investigator |
Takayama Naru 大阪工業大学, 工学部, 教授 (40403373)
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| Co-Investigator(Kenkyū-buntansha) |
木村 玲二 鳥取大学, 乾燥地研究センター, 准教授 (80315457)
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Keywords | 天然記念物鳥取砂丘 / 景観保全活動 / 砂面変動 / 地理情報システム / 環境リモートセンシング |
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| Outline of Final Research Achievements |
In this study, we evaluated the spatiotemporal topographic changes and vegetation cover ratio over the sand dune area from before the start of landscape conservation activities to the present, over the Tottori Sand Dune Natural Monument, Japan.
To conserve the Tottori Sand Dune area effectively, it is important to elucidate the influences on sand movement of different factors, such as the vegetation cover ratio, landscape conservation activities, topography, and wind conditions, while also considering the interactions of these elements. The method proposed in this study was accurate in estimating the spatial distributions of the annual rate of change in sand height and the vegetation cover ratio per 30 ×30-m PP from before the initiation of landscape conservation activities to the present. In the near future, we intend to analyse the causal relationship between the annual rate of change in sand height and each factor.
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| Free Research Field |
生物圏気象環境 環境リモートセンシング
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| Academic Significance and Societal Importance of the Research Achievements |
ドローンは新たな“センサ搭載機”であり，より簡単に“鳥の目”による地上観測が行える．近年，空撮画像の合成，写真測量による数値標高モデルの構築などが容易になっており，廉価版ドローンに搭載可能な軽量小型なマルチスペクトルカメラなども普及しはじめている．ドローンの観測データと人工衛星や航空機で取得される情報との関連を解析することにより，より大きな“鳥の目”に拡張することができる．さらにアーカイブを使えば時空間的な環境評価に応用できる．本研究はこうした観点から，天然記念物鳥取砂丘の景観保全活動とその結果について，植被率と砂面変動の時空間的な解析をはじめて行った点が大きな成果と言える．
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