Late Pliocene and early Pleistocene environmental evolution from the sporopollen record of core PL02 from the Yinchuan Basin, northwest China
Late Pliocene and early Pleistocene environmental evolution from the sporopollen record of core PL02 from the Yinchuan Basin, northwest China
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银川盆地PL02岩心孢粉记录的上新世晚期和更新世早期环境演化
DOI：
10.1016/j.quaint.2018.03.009
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发表时间：
2018-05
影响因子：
2.2
通讯作者：
Li Xinling
中科院分区：
文献类型：
--
作者：
Tian Yanyan;Wei Mingjian;Cai Maotang;Wang Junping;Li Xinling
为了研究亚洲内陆上新世-更新世过渡时期的气候变化，研究了银川盆地PL02岩芯567.3 m-247.9 m深度(约2.87-1.5 Ma)的孢粉记录，这些记录可以被认为是植被和气候变化的良好档案。结果表明，银川盆地气候相对温暖湿润，2.6 Ma以前为荒漠草原环境。早更新世初，旱生植物(白刺和藜科)的花粉含量急剧增加，气候较上新世晚期更为干燥，环境明显恶化。然而，从1.99 Ma到1.73 Ma，旱生植物中的花粉含量在短时间内下降，气候变得更加湿润。1.73 Ma以后，草本植物的花粉含量持续增加，植被类型由荒漠草原向荒漠转变，反映了寒冷干燥的气候。研究区植被变化反映了上新世晚期以来中亚内陆的干旱趋势，这可能与全球变冷和青藏高原的隆升有关。
To investigate the change of climate during the Pliocene-Pleistocene transition in the Asian interior, sporopollen records from the 567.3 m-247.9 m depths (ca. 2.87–1.52 Ma) of the core PL02 in the Yinchuan Basin were studied, which could be regarded as an excellent archive of vegetation and climate changes. The results indicated that the climate of the Yinchuan Basin was relatively warm and humid with a desert steppe environment before 2.6 Ma. At the beginning of the early Pleistocene, the pollen content of xerophytic plants (Nitrariaand Chenopodiaceae) increased sharply, the climate became drier than that of the late Pliocene, and the environment obviously worsened. However, from 1.99 Ma to 1.73 Ma, xerophytic plants in the pollen content decreased for a short time, and the climate became more humid. After 1.73 Ma, the pollen content of herbaceous plants continually increased, and the vegetation type shifted from desert steppe to desert, which reflects a cold and dry climate. In the study region, the vegetation change suggested an aridification trend in Central Asia inland since the late Pliocene, which might be related to global cooling and the uplift of the Tibetan Plateau.
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影响因子：
2.2
作者：
Fuli Wu;X. Fang;Congrong An;M. Herrmann;Yan Zhao;Y. Miao
通讯作者：
Fuli Wu;X. Fang;Congrong An;M. Herrmann;Yan Zhao;Y. Miao
银川盆地PL02钻孔磁性地层学及其古气候意义
影响因子：
3
作者：
Wang Junping;Shen Miaomiao;Hu Jianmin;Wei Mingjian;Zhao Xiaohong;Liu Shaochang;Li Xiaolei;Li Xinling
通讯作者：
Li Xinling
影响因子：
4
作者：
Z. Ding;Z. Yu;N. Rutter;Tung-sheng Liu
通讯作者：
Z. Ding;Z. Yu;N. Rutter;Tung-sheng Liu
影响因子：
2.2
作者：
M. Cai;Mingjian Wei;D. Xu;Y. Miao;Fuli Wu;Baolin Pan
通讯作者：
M. Cai;Mingjian Wei;D. Xu;Y. Miao;Fuli Wu;Baolin Pan
影响因子：
64.8
作者：
Pollard, David;DeConto, Robert M.
通讯作者：
DeConto, Robert M.