| In recent years, sea-level rising has been paid more and more attention under the background of global warming, and sea-level rise has not only brought marine disasters,but also increased the ecological fragility of coastal areas. In order to evaluate the impact of global warming on Chinese coastline and its impact on natural ecology, to carry out the research on the relationship between the Holocene sea-level change,geomorphological evolution and anthropogenic activities, can be used as reference for formulating the countermeasures of human adaptation in the future climate change.Coastal plains in eastern China, including the northern Jiangsu Plain, the Yangtze River Delta Plain, Hangjiahu Plain and Ningshao Plain, are not only sensitive areas to changes of sea and land, but also densely distributed prehistoric cultural sites, where provide important materials for the study of "man-land relationship". In this paper, a lot of work in the scientific drilling works has been carried out in the research area, to obtain a basic understanding of Holocene sea-level change process and geomorphological evolution by establishing regional stratigraphic sequences and chronological framework which is combined with AMS 14C dating which is on the basis of meticulous sedimentation analysis on series of cores. In this paper, more than 2000 prehistoric cultural sites counted, 655 of which are definite-age Neolithic sites. We analyzed the spatial and temporal distribution pattern of the site points by using the geographic information system (GIS) method, which is found that the remains of a change in the number of temporal and spatial distribution is controlled by the geomorphological evolution, and the geomorphological evolution is controlled by the Holocene sea-level change.During the early Holocene, the sites scattered only in the eastern Zhejiang intermountain basin, away from the ocean. During the period of 9.0-7.0 ka, the coastal plains of eastern China (including the continental shelf) were extensively transgressive,which is in the open shallow sea, bay and estuary environment. In the west side of Hangjiahu Plain and the south of Ningshao basin are low mountain and island near the ocean, which provide a limited living space for the Neolithic human, and the Neolithic culture of this period contains "Maritime component".7.0 ka is an important turning point for sea-level change, north and south of the Yangtze River sea water faded, sea level rise rate decreased significantly, a large amount of sediment fills estuary, which evolved the delta plains and river alluvial plains under deposition. Due to the significant -role of land growing, the coastline is moving eastward, which created a vast expanse of land and provides a broad production and living space for Neolithic mankinds, and the Neolithic culture can be developed vigorously.Around 5.0 ka, human beings have more living space due to the growth of land in this area. At this time, representive Neolithic culture in the north and south of Yangtze River like Liangzhu culture and Longshan culture enters the prosperity and development stage. The number of Neolithic sites in this area has increased greatly, the scope is more extensive, many ancient cities established, and the culture has been unprecedentedly prosperous. However, not only the low altitude and dense river network in the coastal plains of eastern China.In general, the dynamic relationship between geomorphological evolution and anthropogenic activities under the control of sea-level change which is "sea advance,human back; sea back, human advance". However,not only the low altitude and dense river network in the coastal plains of eastern China, but also which is in downstream flood area of Huanghuai, Jianghuai and Qiantang River, which are affected by changes of sea and land and geomorphological evolution greatly, and are harassed by extreme climate events frequently,which make the region's Neolithic culture frequently intermittent. |
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