Paleoenvironment changes since mid - holocene revealed by a palynological sequence from sihenan profile in luoyang , henan province 河南洛阳寺河南剖面中全新世以来的孢粉分析及环境变化
In the area , the holocene climate alternately changed from cold to warm and from dry to wet and is mainly cool - dry 得出此地区全新世气候以冷暖、干湿交替出现,主要以温凉干旱为主。
The comparative research between the environmental archaeology of the southeast and central south of inner mongolia of mid - holocene epoch 中全新世内蒙古东南部和中南部环境考古对比研究
Discovery of frost riving structure at the ice front of holocene in duolun district inner mongolian autonomous region and its significance 内蒙古多伦地区全新世冰缘融冻构造的发现及其意义
Dating would be particularly important in order to elaborate the characteristic of climatic variations and its regional discrepancy 为了阐明全新世气候的波动特点及其区域性差异,断代就显得尤为重要。
So , it provides many new ponderations and enlightenments in understanding holocene stratum and basement tectonics of the hebei plain 因此,它对全面认识河北平原的全新世地层和新构造运动形迹会有许多新的启示。
Study on the relationship between the pedogenetic environment changes and human impact in the holocene soil of the loess plateau in the upper reaches of jinghe 泾河上游黄土高原全新世成壤环境演变与人类活动影响
Therefore , the area is typical to study the environmental change of china , even of the globe since quaternary period , especially since the holocene epoch 所以该地区是研究第四纪以来,特别是全新世以来中国及全球环境变化的典型地区。
It is thought that the holocene original sediments were the result of the aeolation in the area , but the stream action influence the formation of deuterogenic loess 认为本地区全新世原始沉积物是风成的,但流水作用影响了次生黄土的形成。
The author selects the holocene environmental change in the eastern guanzhong basin and its influence on human culture as the topic of the thesis 基于这方面的考虑,我们选择了关中盆地东部全新世环境演变及其对人类文化的影响作为本次研究的主要内容。