| 1. | Stable carbon isotope analyses in sediments and its impli cations for reconstructing climatic and environmental changes
再建气候环境演化历史的碳同位素技术 |
| 2. | Historic paleoenvironmental changes reflected by susceptibility in the sediment , southern margin of tarim basin
塔里木盆地南缘沉积物磁化率变化与历史时期环境演化 |
| 3. | In the recent years the study on the loess - palaeosol sequence has obtained many achievements that have attracted the attention of the world , but it mainly relies on the indirect physical and chemical proxies
近年来在探索东亚更新世尤其是晚更新世的环境演化规律方面取得了令世界瞩目的成果，但其研究多采用间接理化替代性指标。 |
| 4. | The studies to exhibit the sedimentary source in the east china sea during the last glacial age are of great significance to reveal the hydrologic situation of paleo - continent and paleo - ocean , climate change and environmental evolution
分析末次冰期东海沉积物来源，对揭示古陆、古海洋水文状况、气候变化和环境演化都有重要意义。 |
| 5. | The depositional environment of the upper paleozoic in the ordos evoluted from the epicontinental sea to the fluvial - delta . the change of the depositional environment and eustacy controlled the main depositional systems in the research area
上古生界沉积环境演化过程总的是由陆表浅海逐渐变为陆相的河流?三角洲，海平面升降和海水进退控制了区内主要的沉积体系和沉积相类型。 |
| 6. | Because of their prominent advantages compared with other achieves of environmental change , the study of high - resolution sequence of environmental change during the late quaternary mainly depends on the polar ice - core and deep ocean sediment
由于冰芯与深海沉积和其它环境演化信息的记录载体相比优势明显，国际上的晚第四纪高分辨率环境演化序列研究多采用冰芯与深海沉积序列。 |
| 7. | The discovery of abrupt climatic changes and the aim of predicting the environmental change in the coming future of the study of global change make studies on the high - resolution sequence of environmental change a frontier and hotpoint of the study of global change
气候突变事件的发现和全球变化科学预测未来环境变化的目标使高分辨率环境演化序列研究成为全球变化研究的一个前沿和热点领域。 |
| 8. | In the recent years numerous scientists have found that there appeared many abrupt climatic changes during the last glacial by studying the high - resolution achieves of environmental change such as polar ice - core , deep ocean sediment and loess - palaeosol sequence et al
近十几年来，随着研究技术和方法手段的进步，许多科学家通过对极地冰芯、深海沉积物、黄土-古土壤等环境演化信息载体的研究，在末次冰期中发现了许多气候突变事件。 |
| 9. | There is no precedent to model land use and land cover change of arid region in china . and zhangye city located in the transition of three physical geographical region of china , is the significant part of north - west arid region , which is the sensitive area and zoological brittle zone . the evolutive process and mechanism of land cover change law is different from east region
国内对干旱区土地利用覆盖变化模拟的研究尚无先例，且张掖市是我国西北干旱区的重要组成部分，处在我国三大自然地理区的过渡位置，为环境演化的敏感区和生态脆弱带，土地覆盖的演化过程和机制有其不同于东部地区的特殊规律，所以张掖市土地利用覆盖变化模拟的研究对干旱区现代环境变化的人为影响研究有着极为重要的理论和实际意义。 |
| 10. | Benthic foraminifer fauna , ams14c dating and acoustic sub - bottom profile was analyzed in the core ey02 - 2 and ey02 - 1 drilled from the muddy deposit in the middle southern yellow sea and the mid - shelf of north east china sea . considering the results of core qc2 ? dz4 and the standard oxygen isotope curves , we discussed the late - quaterenary paleo - environment evolution , benthic foraminifer fauna , paleo - climate , the climate events and water mass in postglacial period , average sedimentation rates , paleo - water depth , origin of sediments , average sea level rise rate in the shelf of south yellow sea and east china sea . at last we discussed the condition of sea level rise in the east china , green house effect and the protection of coastal zone
本文根据南黄海中部泥质区和东海中陆架的两个钻孔岩芯的古生物、 ams ~ ( 14 ) c测年、浅地层剖面等，参考qc _ 2 、 dz _ 4成果及标准氧同位素曲线探讨了黄东海陆架晚第四纪古环境演化、底栖动物群特征、古气候、冰后期以来气候事件、古水团、沉积速率、古水深、沉积物源、海平面平均上升率，讨论目前中国东部海平面上升的状况、温室效应及海岸带保护。 |
