About TAKAHASHI DAISUKE
About 長野大 環境ツーリズム
About 長野大学紀要
About forest
About food chain
About ecosystem
About isotope analysis
About farm pond
About questionnaire
About stable isotope analysis
About food web
About Country-Side Forest
About Ecosystems
About 水域
About 里山
About 生態系
About 検証