Advances in Earth Science ›› 2024, Vol. 39 ›› Issue (11): 1169-1182.DOI: 10.11867/j.issn.1001-8166.2024.086
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Yue LI1(), Ying WANG1, Yuecong LI1,2, Ruchun ZHANG3, Linyuan MA4, Hanfei YOU1, Rongrong WANG1, Yihang CAO1, Qinghai XU1,2(
)
Received:
2024-06-21
Revised:
2024-09-26
Online:
2024-11-10
Published:
2025-01-17
Contact:
Qinghai XU
About author:
LI Yue, research area includes surface pollen in the Tibetan Plateau. E-mail: 19831120190@163.com
Supported by:
李悦1(), 王莹1, 李月从1,2, 张茹春3, 马林原4, 由翰飞1, 王荣荣1, 曹义航1, 许清海1,2(
)
通讯作者:
许清海
作者简介:
李悦,主要从事青藏高原表土花粉研究. E-mail:19831120190@163.com
基金资助:
CLC Number:
Yue LI, Ying WANG, Yuecong LI, Ruchun ZHANG, Linyuan MA, Hanfei YOU, Rongrong WANG, Yihang CAO, Qinghai XU. Estimation of Relative Pollen Productivity in Alpine Desert Steppe of Western Tibetan Plateau[J]. Advances in Earth Science, 2024, 39(11): 1169-1182.
李悦, 王莹, 李月从, 张茹春, 马林原, 由翰飞, 王荣荣, 曹义航, 许清海. 青藏高原西部高寒荒漠草原相对花粉产量估算[J]. 地球科学进展, 2024, 39(11): 1169-1182.
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URL: http://www.adearth.ac.cn/EN/10.11867/j.issn.1001-8166.2024.086
Fig. 1 Sampling sites of alpine desert steppe in the western Tibetan Plateau(a)The location of desert steppe area in Ngari(base map from https://livingatlas.arcgis.com/wayback);(b)The main vegetation types of desert steppe[38]; (c)Sampling sites in desert steppe study area
Fig. 2 Sketch map of vegetation survey method based on“Crackles Bequest Project”[38](a)Quadrats from 0 to10 m;(b)Vegetation survey from 10 to 100 m;A ~ E represent types of vegetation communities
Fig. 3 Scatter plots of adjusted relationship between pollen loading and vegetation cover(a) Relationship between adjusted pollen proportions and original vegetation cover of submodel 2;(b) Relationship between original pollen proportion and relative vegetation cover of submodel 1
Fig. 4 Vegetation composition of alpine desert steppe in western Tibetan Plateau(a) Vegetation composition from 0 to 100 m; (b) 3 km distance-weighted plant abundance
花粉类型 | 长轴/μm | 短轴/μm | 沉降速率/(m/s) |
---|---|---|---|
禾本科 | 26.793 9 | 23.695 0 | 0.022 8 |
藜科 | 11.149 4(直径) | 0.015 2 | |
蒿属 | 19.987 6 | 17.818 0 | 0.012 6 |
菊科 | 20.920 9 | 17.886 3 | 0.014 0 |
十字花科 | 20.985 9 | 16.723 9 | 0.014 5 |
委陵菜属 | 21.411 6 | 16.988 8 | 0.015 1 |
Table 1 Pollen grains sizes and fall speed for main taxa
花粉类型 | 长轴/μm | 短轴/μm | 沉降速率/(m/s) |
---|---|---|---|
禾本科 | 26.793 9 | 23.695 0 | 0.022 8 |
藜科 | 11.149 4(直径) | 0.015 2 | |
蒿属 | 19.987 6 | 17.818 0 | 0.012 6 |
菊科 | 20.920 9 | 17.886 3 | 0.014 0 |
十字花科 | 20.985 9 | 16.723 9 | 0.014 5 |
委陵菜属 | 21.411 6 | 16.988 8 | 0.015 1 |
Fig. 6 Relevant source areas of pollen under different sub-models and wind speeds(a) Results of 1/d distance-weighting and Prentice’s distance-weighting method; (b) Results of Prentice’s distance-weighting method calculated by max wind speed (28 m/s)
花粉类型 | 子模型2+ Prentice | 误差值 | 子模型2+ 1/d | 误差值 |
---|---|---|---|---|
藜科 | 1.000 | 0.000 | 1.000 | 0.000 |
禾本科 | 0.003 | 0.006 | 0.012 | 0.006 |
蒿属 | 1.286 | 0.058 | 1.154 | 0.042 |
菊科 | 0.689 | 0.043 | 0.690 | 0.040 |
十字花科 | 0.763 | 0.063 | 0.743 | 0.056 |
委陵菜属 | 0.139 | 0.008 | 0.138 | 0.010 |
Table 2 Estimates of RPPs using different distance-weighting methods
花粉类型 | 子模型2+ Prentice | 误差值 | 子模型2+ 1/d | 误差值 |
---|---|---|---|---|
藜科 | 1.000 | 0.000 | 1.000 | 0.000 |
禾本科 | 0.003 | 0.006 | 0.012 | 0.006 |
蒿属 | 1.286 | 0.058 | 1.154 | 0.042 |
菊科 | 0.689 | 0.043 | 0.690 | 0.040 |
十字花科 | 0.763 | 0.063 | 0.743 | 0.056 |
委陵菜属 | 0.139 | 0.008 | 0.138 | 0.010 |
研究区 | 子模型 | 藜科 | 禾本科 | 蒿属 | 菊科 | 委陵菜属 | 十字花科 | 参考种 | 参考文献 |
---|---|---|---|---|---|---|---|---|---|
阿里地区荒漠草原 | 2 | 1.000 | 0.003 | 1.286 | 0.689 | 0.139 | 0.763 | 藜科 | 本文 |
青藏高原高山草甸 | 2 | 1.000 | 0.020 | 1.149 | 0.308 | 0.002 | 0.090 | 莎草科 | [ |
青藏高原高寒草甸草原 | 2 | 1.000 | 0.186 | 0.607 | — | — | — | 禾本科 | [ |
巴里坤荒漠草原 | 2 | 1.000 | 0.035 | 0.570 | 0.722 | — | — | 禾本科 | [ |
坝上典型草原 | 3 | 1.000 | 0.048 | 0.920 | 0.368 | 0.010 | — | 禾本科 | [ |
阿拉善高原荒漠/荒漠草原 | 1 | 1.000 | 0.030 | 4.160 | — | — | — | 藜科 | [ |
苏尼特左旗荒漠草原 | 1 | 1.000 | 0.059 | 0.027 | 0.185 | — | — | 蒿属 | [ |
锡林格勒典型草原 | 2 | 1.000 | 0.168 | 1.857 | 0.030 | 0.188 | 1.271 | 禾本科 | [ |
1 | 1.000 | 0.088 | 1.754 | 0.158 | 0.123 | 0.298 | 蒿属 | [ |
Table 3 RPP for the pollen types used in the analysis in different study areas
研究区 | 子模型 | 藜科 | 禾本科 | 蒿属 | 菊科 | 委陵菜属 | 十字花科 | 参考种 | 参考文献 |
---|---|---|---|---|---|---|---|---|---|
阿里地区荒漠草原 | 2 | 1.000 | 0.003 | 1.286 | 0.689 | 0.139 | 0.763 | 藜科 | 本文 |
青藏高原高山草甸 | 2 | 1.000 | 0.020 | 1.149 | 0.308 | 0.002 | 0.090 | 莎草科 | [ |
青藏高原高寒草甸草原 | 2 | 1.000 | 0.186 | 0.607 | — | — | — | 禾本科 | [ |
巴里坤荒漠草原 | 2 | 1.000 | 0.035 | 0.570 | 0.722 | — | — | 禾本科 | [ |
坝上典型草原 | 3 | 1.000 | 0.048 | 0.920 | 0.368 | 0.010 | — | 禾本科 | [ |
阿拉善高原荒漠/荒漠草原 | 1 | 1.000 | 0.030 | 4.160 | — | — | — | 藜科 | [ |
苏尼特左旗荒漠草原 | 1 | 1.000 | 0.059 | 0.027 | 0.185 | — | — | 蒿属 | [ |
锡林格勒典型草原 | 2 | 1.000 | 0.168 | 1.857 | 0.030 | 0.188 | 1.271 | 禾本科 | [ |
1 | 1.000 | 0.088 | 1.754 | 0.158 | 0.123 | 0.298 | 蒿属 | [ |
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[1] | Xu Qinghai,Zhang Shengrui. Advance in Pollen Source Area [J]. Advances in Earth Science, 2013, 28(9): 968-975. |
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