Palaeoenvironmental changes from sporopollen record during the later Late Pleistocene at Shuidonggou locality 2 in Yinchuan，Ningxia
Liu Decheng1, Gao Xing1, Wang Xulong2, Zhang Shuqin3, Pei Shuwen1, Chen Fuyou1
1 Institute of Vertebrate Paleontology and Paleoanthropology， Laboratory of Human Evolution，Chinese Academy of Sciences，Beijing 100044 2 LLQG，Institute of Earth Environment，Chinese Academy of Sciences，Xi'an 710075，Shaanxi 3 Research Center of Paleontology & Stratigraphy，Jilin University，Changchun 130026，Jilin
Abstract 27 sporopollen samples were obtained and analyzed from Shuidonggou locality 2 in Yinchuan，Ningxia.The statistic results show that herb pollens took absolutely advantage，including Chenopodiaceae，Artemisia，Zygophyllum，Ranunculaceae and a small amount of Euonymus，Ephedra，Nitraria and so on.Woody plant pollens stood in a secondary position，including Pinus，Picea，Abies，Betula and Ulmusetc.Fern spores were few，contained Lycopodium，Selaginella，Adiantum and so on.According to sporopollen assemblages，it can be divided into four strips.In the first strip(72-38 ka BP)，the sporopollen content was high，water grown and hygric vegetable was prosperous，it belonged to temperate grassland zone with some marshes and relatively warm and humid climate.In the second strip(38-29 ka BP)， the sporopollen content was low，herb pollen occupied absolutely advantage in this site.In the other hand，some deciduous broad-leaved trees such as Quercus and Ulmus grew with the coming ferns and Urtica.It belonged to temperate grassland zone mainly with Compositae and a small mount of broadleaf.Aquatic and hygric plants grew flourishing in part of the region which was a marsh environment.In the third strip(29-20 ka BP)， the sporopollen content was very low.It should be a temperate desert steppe environment with some Betula，Ulmus.Aquatic and hygric plant grew flourishing in part of the region，marsh condition，a small amount of Picea and Abies trees grew surrounding hills.In the forth strip(20-18 ka BP)，the sporopollen content was extremely low. It showed a temperate desert steppe environment with some Betula and Ulmus.A lot of Picea and Abies trees grew on hills.
About author: Liu Decheng，born in 1976，is a postdoctoral scholar of Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences，and is engaged in geomorphology and Quaternary environment.Address: 142 Xiwaidajie Street，Beijing；Postocode：100044.E-mail:liudecheng@ivpp.ac.cn.
Cite this article:
Liu Decheng,Gao Xing,Wang Xulong et al. Palaeoenvironmental changes from sporopollen record during the later Late Pleistocene at Shuidonggou locality 2 in Yinchuan，Ningxia[J]. JOURNAL OF PALAEOGEOGRAPHY, 2011, 13(4): 467-472.
Liu Decheng,Gao Xing,Wang Xulong et al. Palaeoenvironmental changes from sporopollen record during the later Late Pleistocene at Shuidonggou locality 2 in Yinchuan，Ningxia[J]. JOPC, 2011, 13(4): 467-472.
