一、位置与交通花海子盆地位于甘肃省酒泉盆地之西北部,为玉鬥县所轄。南面有大黑山,寬台山等与河西走廊相隔,北界为馬鬃山区,西面为低山丘陵,东与金塔盆地相隣,在自然地理上形成一独立的單元。盆地的外形为南北高、东四低的狭长封閉式盆地。东西长达60公里左右,南北寬达30公里,面积約 First, the location and traffic Huahai Basin is located in the northwest Jiuquan Basin in Gansu Province, for the jurisdiction of Yu-Dou County. In the south there are the Great Black Mountain, the Wutaishan River and the Hexi Corridor separated by the north boundary of Mazong Mountain, west of the low hills and the east adjacent to the Quinta Basin, forming an independent unit in the physical geography. The shape of the basin is high in the north and south and narrow in the east and low in the closed basin. Things up to 60 kilometers long, 30 kilometers wide from north to south, an area of ​​about