北海道北部,サロベツ原野における浅部地下構造
スポンサーリンク
概要
- 論文の詳細を見る
The Sarobetsu marshland, it is one of the vast marsh in Hokkaido, is constructed by the Teshio River and the Saribetsu River. Because of the maximum scale high moor of Japan, various vegetation and waterfowls breeding at the Penke and the Panke swamps, Sarobetsu marshland is registered in Ramsar Convention in 2005. But recently, drawing up the underground water by farmers, drain work at surrounding area to make farmland and invasion of Sasa (a kind of bamboo) make the marshland dry. Therefore, it is an urgent problem for the preservation of marshland environments. Geological Survey of Hokkaido (GSH) and Horonobe Research Institute for the Subsurface Environment (Horonobe-RISE) had started electrical and geological surveys to clarify the underground water structure in this area to maintain a balance of marshland and farmland. In the results, resistivity layer in this area is divided into five layers and the third layer is further subdivided into two layers. And also we can make four lines of two-dimensional resistivity model. Comparing with the resistivity model and geological data, we conclude that the layers I, II and III, are correspond to the alluvium, the layer IV corresponds to the basement, and the layer V corresponds to the Koetoi layer. From the depth contour map of the base of the layer III (or the top of the layer IV), the alluvium layer get sharply thinner as closer to the eastern hills. This area is meandering zone of Sarobetsu River and mostly corresponds to the Sarobetsu fault zone.
論文 | ランダム
- 神経内剥離術による神経内血行への影響についての実験的研究
- 2C18 米国研究機関における研究・技術成果移転担当部署の活動について(技術経営(8),一般講演,第22回年次学術大会)
- 2C17 技術移転の事例調査による「技術の事業化・産業化」へ向けたプロセスに関する考察(技術経営(8),一般講演,第22回年次学術大会)
- 41244 寝具の熱水分移動・蓄積を考慮した快適な睡眠環境の形成に関する研究 : (その1) 夏期および冬季睡眠実験(温熱感・睡眠環境,環境工学II)
- 41245 寝具の熱水分移動・蓄積を考慮した快適な睡眠環境の形成に関する研究 : (その2) 温冷感予測式を用いた睡眠環境制御(温熱感・睡眠環境,環境工学II)