摘要
对全新世以来中国东部海面变化的资料数据进行全面搜集,其中包括12条原始曲线和600多个标志物点的多项信息,通过建立数据库、统计分析等多种方法与手段的运用,拟对全新世以来中国东部海面变化小尺度波动进行对比研究,并得出全新世以来中国东部海面波动的一系列特征。初步建立起中国东部全新世以来海面随时间变化的波动序列,即:大致以6500aBP为界,6500aBP之前海面在波动中快速上升;6500aBP之后海面波动频繁,变化幅度减弱,但其变化的总趋势呈现出在波动中微微上升的特点。中国东部全新世以来海面变化从总体上来讲共经历了9个周期的波动变化。
Sealevel changes have now become one of the hot issues in the current research of international global changes. And it has close relationships with human activities, including living, manufacturing and economic growth. Therefore the problem of sealevel changes, especially sealevel fluctuating during the Holocene is being always attached high importance by the academic circles and all governments. Some experts and investigators have done quite a few researches on the sealevel changes in China for a long time, adopting many means of age menstruating and biometrics, employing a lot of new techniques, and establishing the curves patterns of sealevel changes in the territorial regions or countrywide. They generally suggested that there are many fluctuations in sealevel changes since Holocene in the eastern China, but the general trend is unanimous on the whole. But among the fluctuations, the little ones are quite confusing and controversial. People have not come to an agreement on the frequencies, amounts, times and extents of these little fluctuations, and also some discrepancies still exist in many related problems. To make further study about the sealevel changes trend in the study region aiming to reach a possible agreement, a large amount of data about sealevel changes in the regions of eastern China since Holocene including 12 original sealevel change curves and more than 600 sealevel indicators are collected. Then resettle these original data follow some methods like doing some statistic and digital calculation on a scale of 250 years during the past 10 ka. Rearrangement and systematic statistic analyses are made on the recollected data by Origin software. And comparison study is made on littlescale sealevel fluctuations in the regions of eastern China through building of databank, obtaining a series of fresh characteristics of sealevel fluctuations since Holocene in the regions of eastern China. In so doing, synthetic sealevel curves and temporal sequence wi
出处
《地球科学进展》
CAS
CSCD
2002年第6期886-894,共9页
Advances in Earth Science
基金
国家自然科学基金项目"长江三角洲全新世海侵和洪涝事件序列环境考古研究"(编号:40071083)
高校博士点基金项目"长江三角洲全新世海侵和洪涝事件序列环境考古研究"(编号:2000028414)
南京大学"985"项目"自然地理重点学科建设及南京大学现代分析中心测试基金"资助.
