Distributional patterns of anemophilous tree pollen indicating the pathways of Indian monsoon through Qinghai–Tibetan Plateau
The distribution pattern of vegetation on Qinghai–Tibetan Plateau is fundamentally influenced by the plateau climate, which is mainly controlled by Indian monsoon during summer. The long distance transportation of pollen (mostly anemophilous taxa) produced by trees on the plateau has been recorded b...
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| Format: | Article |
| Language: | English |
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Elsevier
2017-10-01
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| Series: | Journal of Palaeogeography |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095383617300639 |
| _version_ | 1819121842406817792 |
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| author | Zhi-Yong Zhang Cheng-Sen Li |
| author_facet | Zhi-Yong Zhang Cheng-Sen Li |
| author_sort | Zhi-Yong Zhang |
| collection | DOAJ |
| description | The distribution pattern of vegetation on Qinghai–Tibetan Plateau is fundamentally influenced by the plateau climate, which is mainly controlled by Indian monsoon during summer. The long distance transportation of pollen (mostly anemophilous taxa) produced by trees on the plateau has been recorded by modern pollen samples in previous studies, and hypothesized to be a good indicator of monsoon dynamics. Here we use 270 surface pollen samples from Qinghai–Tibetan Plateau to test the distribution patterns of the anemophilous tree pollen. Meanwhile factors related to Indian monsoon affecting pollen transportation are simulated and analyzed. Results show that depositional patterns of anemophilous tree pollen, especially Abies, Pinus, Quercus and Betula are completely controlled by the pathways of Indian monsoon. This is reflected by climatic indicators of the atmospheric pressure pattern over June–July–August, by the precipitation pattern over June–July–August and by the topographic feature of the plateau. The spatial interpolation of thin plate spline results also display two depositional centers (ca. 30°N, 95°E and 30°N, 105°E) of the anemophilous tree pollen. In contrast to previous conclusion that pollen distributional pattern is determined by mean annual precipitation, we argue that Indian monsoon is the essential controller because of the synchronization between timing of monsoon wind and timing of plants flowering. Our finding strongly suggests that distributional pattern of anemophilous tree pollen on the plateau is a good proxy of Indian monsoon. |
| first_indexed | 2024-12-22T06:42:59Z |
| format | Article |
| id | doaj.art-a5eda6d431b74696998ce86c051f2454 |
| institution | Directory Open Access Journal |
| issn | 2095-3836 |
| language | English |
| last_indexed | 2024-12-22T06:42:59Z |
| publishDate | 2017-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Palaeogeography |
| spelling | doaj.art-a5eda6d431b74696998ce86c051f24542022-12-21T18:35:24ZengElsevierJournal of Palaeogeography2095-38362017-10-016435235810.1016/j.jop.2017.08.005Distributional patterns of anemophilous tree pollen indicating the pathways of Indian monsoon through Qinghai–Tibetan PlateauZhi-Yong Zhang0Cheng-Sen Li1Lushan Botanical Garden, Jiangxi Province and Chinese Academy of Sciences, Jiujiang 332900, Jiangxi Province, ChinaState Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Xiangshan, Beijing 100093, ChinaThe distribution pattern of vegetation on Qinghai–Tibetan Plateau is fundamentally influenced by the plateau climate, which is mainly controlled by Indian monsoon during summer. The long distance transportation of pollen (mostly anemophilous taxa) produced by trees on the plateau has been recorded by modern pollen samples in previous studies, and hypothesized to be a good indicator of monsoon dynamics. Here we use 270 surface pollen samples from Qinghai–Tibetan Plateau to test the distribution patterns of the anemophilous tree pollen. Meanwhile factors related to Indian monsoon affecting pollen transportation are simulated and analyzed. Results show that depositional patterns of anemophilous tree pollen, especially Abies, Pinus, Quercus and Betula are completely controlled by the pathways of Indian monsoon. This is reflected by climatic indicators of the atmospheric pressure pattern over June–July–August, by the precipitation pattern over June–July–August and by the topographic feature of the plateau. The spatial interpolation of thin plate spline results also display two depositional centers (ca. 30°N, 95°E and 30°N, 105°E) of the anemophilous tree pollen. In contrast to previous conclusion that pollen distributional pattern is determined by mean annual precipitation, we argue that Indian monsoon is the essential controller because of the synchronization between timing of monsoon wind and timing of plants flowering. Our finding strongly suggests that distributional pattern of anemophilous tree pollen on the plateau is a good proxy of Indian monsoon.http://www.sciencedirect.com/science/article/pii/S2095383617300639Distributional patternsAnemophilous tree pollenIndian monsoonQinghai–Tibetan PlateauQuaternary |
| spellingShingle | Zhi-Yong Zhang Cheng-Sen Li Distributional patterns of anemophilous tree pollen indicating the pathways of Indian monsoon through Qinghai–Tibetan Plateau Journal of Palaeogeography Distributional patterns Anemophilous tree pollen Indian monsoon Qinghai–Tibetan Plateau Quaternary |
| title | Distributional patterns of anemophilous tree pollen indicating the pathways of Indian monsoon through Qinghai–Tibetan Plateau |
| title_full | Distributional patterns of anemophilous tree pollen indicating the pathways of Indian monsoon through Qinghai–Tibetan Plateau |
| title_fullStr | Distributional patterns of anemophilous tree pollen indicating the pathways of Indian monsoon through Qinghai–Tibetan Plateau |
| title_full_unstemmed | Distributional patterns of anemophilous tree pollen indicating the pathways of Indian monsoon through Qinghai–Tibetan Plateau |
| title_short | Distributional patterns of anemophilous tree pollen indicating the pathways of Indian monsoon through Qinghai–Tibetan Plateau |
| title_sort | distributional patterns of anemophilous tree pollen indicating the pathways of indian monsoon through qinghai tibetan plateau |
| topic | Distributional patterns Anemophilous tree pollen Indian monsoon Qinghai–Tibetan Plateau Quaternary |
| url | http://www.sciencedirect.com/science/article/pii/S2095383617300639 |
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