1985年7月至8月,作者前往河西走廊对各地区农作物种质资源和古农业遗存进行了考察。民乐县六坝乡于1975年在东灰山开挖水渠时,发现了新石器遗址,获得许多石器和陶片,经甘肃省和北京的考古学家对文化遗物的研究,将此遗址定为“四坝式”文化类型,即新石器时期的晚期,相当于齐家文化,距今 From July to August 1985, the author went to the Hexi Corridor to study the crop germplasm resources and ancient agricultural relics in various regions. During the excavation of aqueducts in Donghsi Mountain in 1975, Liule Township of Minle County discovered neolithic sites and obtained many stoneware and pottery. After archaeologists from Gansu and Beijing studied the cultural relics, The “four bar” type of culture, the late Neolithic period, is equivalent to the Qijia culture