摘要
岐山剖面孢粉分析表明，黄土高原东南部晚更新世植被与气候变化可分为７ 个阶段和１３ 个小阶段。其中末次冰期的３ 个冷干阶段和２ 个温湿阶段被分别命名为秦家寨、岐山、坡头冰阶和尚家坡、杨家湾间冰阶。冰阶的植被以温带森林草原为主，间冰阶的植被以落叶阔叶林为主。
Sporo pollen analysis in Qishan section shows that the change of vegetation and climate of the Late Pleistocene can be divided into six stages and thirteen sub stages in the southeast part of the Loess Plateau. Three cold dry stages and two temperate moist stages of last glacial period are named Qinjiazhai glacial staircase, Qishan glacial staircase, Potou staircase, Shangjiapo interglacial staircase and Yangjiawan interglacial staircase respectively. Forest steppe consisting of Ulmus, Quercus and herb indicating cold and semiarid climate was dominant during glacial periods, and mean annual rainfall was 400-500 mm at that time. Deciduous broadleaf forest consisting of Quercus, Julans and Pterocarya etc. representing temprate moist climate prevailed during interglacial periods and interglacial staircases, and mean annual rainfall was 600-700 mm at that time.
出处
《地理科学》
CSCD
北大核心
1999年第6期565-569,共5页
Scientia Geographica Sinica
基金
地矿部科技项目!(8502217
9501104)课题的部分成果
关键词
黄土高原
晚更新世
孢粉
环境变化
古植物
Loess Plateau
Late Pleistocene
Sporo pollen
Environmental change
