- 來自全國的定居者人數
- 排水開墾 正在施工的八郎潟湖
- 排水開墾前的八郎潟湖
- 現在的大潟村
- 小畑勇二郎
- 嶋貫隆之助
- 和田正明
- 二田是儀
- 出口勝美
- Pieter Philippus Jansen
- 從湖底土變成肥沃土壤的過程
- 改善排水的方法
- 大潟村的湖床土壤
- 早期耕作的困難
- 農業機械變成了龜
- 一秒內排出的最大量
- 排水處的水泵葉輪實物
- 排水開墾概述
- 保護圩田的機制
- 淡水化的原理
- 堤防的構造
- 排水結構
- 排水開墾和填埋的區別
- 地層標本 採集的樣子
- 八郎潟的前身是海
- 大潟村子的居住地區以前是陸地
- 在潟湖裏、 Yamatoshijimi( Corbicula japonica )大量繁殖
- 大潟村的地層與男鹿半島相同
- 角間崎海貝和繩文時代的八郎潟
- 八郎潟湖的歴史
- 男鹿半島・大潟地質公園 – 八郎潟湖的歴史-
- 頭頂海麵
- 什麼是日本地質公園？
- 關於地質公園和自然災害・防災
- 憧憬的大地、 前往大潟村
- 定居訓練所
- 三角形屋頂的住宅
- Haigai (Tegillarca granosa) 與 Chirimen yukigai (Meropesta sinojapo nica)
- Hachirogata Lagoon before Reclamation
- During the Reclamation
- Current Ogata Village
- Yujiro OBATA
- Ryunosuke SHIMANUKI
- Masaaki WADA
- Korenori FUTADA
- Katsumi DEGUCHI
- Pieter Philippus Jansen
- The formation of Hachirogata
- What is Japan Geopark?
- Natural disasters and disaster prevention in Geoparks
- Let’s look at the geological layers
- The predecessor of Hachiro Lagoon was the sea
- The central area was land
- Lots of Yamato Shijimi (Corbicula japonica)
- The underground of Ogata Village is the same stratum as the Oga Peninsula
- Kakumazaki Shell Mound and Hachirogata lagoon in the Jomon Period
- Haigai（Tegillarca granosa）and Chirimen yukigai(Meropesta sinojaponica)
- Maximum Displacement per Second
- The impeller Wheel at the Pumping Station
- Drainage of Landfill?
- The Dike
- How freshwater works
- The Drainage System
- A system to protect reclaimed land
- Summary of Project Plan
- To Ogata, the Land of Dreams
- Modern Triangular Roofed Houses
- Number of Settlers from Across the Country
- Departure from the Settlement Training Center
- The Mechanism of Subsurface Drainage
- Turning Lakebed Soil into Fertile Land
- Challenges of Early Farming
- Improving Drainage
- The Lakebed Soil of Ogata Village
- Agricultural Machines Turned into Turtles
- Hachirogata Lagoon before Reclamation
- During the Reclamation
- Current Ogata Village
- 排水開墾前的八郎潟湖
- 排水開墾 正在施工的八郎潟湖
- 現在的大潟村
- Reclamation Procedures
- A model of the reclamation work.
- A model of farmland development
- A model of rice farming
- The Cultivation of Rice
- Preparing New Farmland
- Features of a Country Elevator （Grain Elevator）
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