中文摘要：

对连云港新石器遗址地貌、洪门钻孔的沉积环境以及古遗址时空分布的研究表明,新石器文化始于7000年前全新世气候变暖和海平面上升时期.早期青莲岗文化时期（6800～5900aB.P.）的遗址有8处,主要分布在锦屏山、南云台山和大伊山的丘陵山地边缘的洪积扇阶地上和西北部未遭受海侵影响的丘陵岗地上,洪门钻孔相应地层显示该时期为湖沼陆相环境,海岸线向海推进,该时期海岸线分布在南云台山以东地区;全新世中期最高海面时,约相当于大汶口文化时期（5900～4400aB.P.）的遗址仅发现两处,遗址退缩至锦屏山以西的丘陵岗地上.洪门钻孔的有孔虫组合显示了浅海环境,海岸线在洪门和锦屏山以东;至龙山文化期（4400～3800aB.P.）,连云港的古文化发展至新石器时代的顶峰,遗址约15处,其中藤花落遗址处于南云台山与北云台山之间谷地的冲积平原,表明此时期的海岸线退至中云台山以东;龙山文化晚期（3800aB.P.左右）又一次海侵导致盛极一时的龙山文化遗址退缩到锦屏山以西地区,使得连云港地区行将跨入文明门槛的原始文化突然衰落.古环境变化对史前文化的兴衰影响巨大.

英文摘要：

Based on approaches of geomorphology, sedimentary facies, ^14C datings, and micropaleontology, the geomorphic features and history of Neolithic archaeological ruins around Lianyungang area as well as their spatial and temporal distributions are synthetically analysed. The results show that the Neolithic culture in this area was originated 7000aB. P. during the Holocene global climate optimum with rising sea level. Qingliangang culture （6800～5900aB. P. ） is represented by eight archaeological ruins which are found from proluvial fan terraces of Jinping Mt., South Yuntai Mt. and Dayi Mt. and hilly land in the northwest of this area which never underwent transgression. The contemporaneous dark peat from Hongmen core implies a lacustrine and swampy environment during the Qingliangang Period. The coastline probably lay at the east of South Yuntai Mt. As a result, the strait of Heifengkou between Jinping Mt. and south Yuntai Mt. tentatively became land. Along with the highest sea level in mid-Holocene, the number of ruins of the Dawenkou Culture （5900 ～ 4400aB. P. ） dramatically decreases to two. They were retreated landward to the hilly areas to the west of Jinpin Mt. The foraminifera assemblage from the Hongmen Core indicates a sea level rising during that period. It is predicted that the ancient coastline at ca. 5600aB. P. was at Hongmen and the east of Jinping Mt. according to the barrier sequence recorded in Hongmen Core as well as the position of Erjian archaeological ruins. During the Longshan Culture period （4400～3800aB. P. ） , ancient civilization in Lianyungang bloomed to a peak of the Neolithic time. The number of archaeological ruins increases greatly to fifteen, among of which, the Tenghualuo Ruin, located on an alluvial plain between the South Yuntai Mt. and North Yuntai Mt. is a representative. The position of ancient coastline was indicated by the tidal flat deposits in Linhong Core from which a ^14C dating of ca. 4100 ± 110aB. P. was obtained. It is suggested that the coastline