The innovation of the plowing tools and the development of the cultivation tools indicate that Lower Xiajiadian Culture belongs to the type of intensive agriculture. 翻耕工具的革新,加之中耕工具的發(fā)達,表明夏家店下層文化已屬于一種精耕細作的農業(yè)類(lèi)型,與遼西區新石器時(shí)代諸考古學(xué)文化相比已發(fā)生了顯著(zhù)變化。