The sea-level change is resulted from superposition of sun, moon and other planeries, and earth itself, biological process, atmosphere and oceanography, as well as artificial actions. As a result, the sea level change is really a sensitive integral variation value of many variations, or a combined function of coupling effects of various big systems. Therefore the above mentioned superposed action of different systems and the coupling effect of sun earth and biological aspects may be called as sun earth biological coupling effect system. Based on this hypothesis, the corresponding sun dynamic, air dynamic, water dynamic and earth dynamic conceptional models are established in order to research the multiple coupling effects and feedback machsnism between these big systems. In order to determine the relations, effectness and coherent relation of different variations, the quantity, analysis is conducted through collective variation and stage division. The quantity analysis indicates that the earths spindle rotation speed is the dynamic mechanism controlling the sea level change of fluctuation. The change rate of sea level in the world is ＋1.32 ＋ 0.22 mm/a, while the sea level change rate in China is only＋1.39 ＋ 0.26 mm/a in average. If take the CO2 content as the climate marker, eight cold stages （periods） are grouped out since two hundreds years AC. The extreme cold of the eighth cold stage started approximately at 1850 years AC. and if the stage from the extreme cold to extreme warm is determined as long as 200 years, the present ongoing warm stage will end at about 2050 years, there after the temperature will begin to tower. If the stage between cold and warm extremes lasts for 250 years, then the temperature will become lower at about 2100 year. Until to that time, the sea-level is estimated to raise ＋7 - ＋11 ＋ 3.5 cm again, and there after, the sea level will begin the new lowering trend. In the same time, the climate will enter into next new cold stage subsequently.
本文以岩性地层、气候地层(CaCO_3含量、古温度和Rb/Sr比值等)、年代地层、沉积化学地层和生物组合地层等资料为基础,根据地层规范以及建组要求将渤海湾西岸全新世地层划分为3个组:独流镇组(Qh_3dl)、大黄洼组(Qh_2dh)和西翟庄组(Qh_1xz)。其地层埋深界线及测年界线分别为:晚全新世独流镇组(Qh_3dl)与中全新世大黄洼组(Qh_2dh)的分组埋深界线为3.70 m,^(14)C年龄界线大致为2 820±80 a B.P.～2 390±60 a B.P.左右;中全新世大黄洼组(Qh_2dh)与早全新世西翟庄组(Qh_1xz)的分组埋深界线为14.10 m,^(14)C年龄界线大致为7 800±120 a B.P.～8 650±85 a B.P.左右;早全新世西翟庄组(Qh_1xz)与晚更新世塘沽组(QP_3tg)的分组埋深界线为18.70 m,测年^(14)C年龄界线大致为9 405±120 a B.P.～10 300±790 a B.P.左右。根据沉积地球化学环境指标(CaCO_3含量、古温度和Rb/Sr比值等)划分出第Ⅰ气候冷段～第Ⅴ气候冷段;根据C_(org)/P_2O_5、Fe^2/Fe^3等含量曲线综合分析划出第Ⅰ·还原带～第Ⅴ·还原带。综合分析显示:气候冷期时往往处于还原环境,与此同时,海平面则呈波动下降趋势。
