Hydro-geographical study on the water environment of Sado Island (1)
| Jazyk: | japonština |
|---|---|
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | 法政大学文学部紀要 = Bulletin of the Faculty of Letters, Hosei University. 85:15-33 |
| ISSN: | 0441-2486 |
| Popis: | 島嶼にとって，飲料水などの水資源の現状を把握し保全していくことは重要で，河川を中心とした水循環の中でどのように物質が循環し周辺海域に流出するかを把握することは，海域の環境や海洋資源のために必要なことである。水循環に伴う物質循環を明確にするという水文科学の理論を用い，「自然誌」を基本に人為の影響を解明するという「水文地理学」の手法を用いて総合的に研究することは，島嶼の水環境研究に対して有効で，伊豆諸島・八重山諸島・長崎諸島など様々な島嶼において継続的な研究を行ってきた。佐渡島は，日本において主要4島を除き沖縄本島に次ぐ面積を持ちながら，水環境に関して十分な研究が行われていないため，2019年に3回，2021年に1回の現地調査を行ったので，その結果をもとに,現況を把握し，今後の有効で継続的な水資源の活用について，水文地理学の視点から考察を行った。 It is important for islands to understand and conserve the current state of water resources such as drinking water, and to understand how substances circulate and flow out to the surrounding sea area in the water circulation centered on rivers. It’s also necessary for the marine environment and marine resources. Comprehensive research using the theory of hydrological science, which clarifies the material circulation that accompanies the water circulation, and the method of “aquatic geography,” which elucidates the effects of humans based on “natural magazines,” is an island. It is effective for water environment research in Japan, and has been conducting continuous research on various islands such as the Izu Islands, Yaeyama Islands, and Nagasaki Islands. Although Sado Island has the area next to the main island of Okinawa except for the four major islands in Japan, sufficient research on the water environment has not been conducted, so we conducted field surveys three times in 2019 and once in 2021. Based on the results, we grasped the current situation and considered the effective and continuous utilization of water resources from the viewpoint of hydro-geography. |
| Databáze: | OpenAIRE |
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