DECLINE OF PRE-HISTORICAL AGRICULTURE AND FORMATION OF FARMING-GRAZING TRANSITIONAL ZONE IN NORTH CHINA: A VIEW FROM CLIMATIC CHANGES

 
  • 從農業氣候條件看我國北方原始農業的衰落與農牧交錯帶的形成
今日熱詞
目錄 附錄 查詞歷史