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| 青海表土花粉分布规律及其与植被的关系 | |
| 引用本文： | 魏海成,郑卓,马海州,潘安定,黄康有,罗传秀,郑艳伟,王志英.青海表土花粉分布规律及其与植被的关系[J].干旱区地理,2009,32(6). |
| 作者姓名： | 魏海成 郑卓 马海州 潘安定 黄康有 罗传秀 郑艳伟 王志英 |
| 作者单位： | 1. 中国科学院青海盐湖研究所,盐湖资源与化学重点实验室,青海西宁,810008 2. 中山大学地球科学系,广东广州,510270 3. 广州大学地理科学学院,广东广州,510006 |
| 基金项目： | 国家自然科学基金项目(40331011,40671187)资助 |
| 摘 要： | 对青海地区63个样点进行植被调查及表土样点分析结果显示:青海地区山地针叶林、针阔混交林、高山灌丛-灌丛草甸、温带草原、灌木-半灌木荒漠及高寒荒漠植被区均有相对独特的花粉组合特征。乔木类中桦呈超代表性,云杉、柏、杨属呈低代表性;灌木、草本中白刺、沙拐枣、柽柳呈低代表性,蒿、藜、麻黄呈超代表性,蔷薇科金露梅、银露梅在自身为优势种的落叶灌丛群落中呈低代表性,在针阔叶林、灌丛草甸过渡带中呈适中代表性。禾本科、莎草科、菊科、豆科、十字花科呈低代表性。A/C值在不同生态环境下的变化幅度较大,但数据组显示A/C值中位数值由半干旱向干旱植被区逐次降低,如草甸和草原为4.14,高山灌丛为2.93,荒漠草原为1.22,荒漠灌丛为0.13,荒漠戈壁为0.05。可见,A/C值能很好地反映环境干湿程度,是环境干旱程度的良好指标。 |
| 关 键 词： | 青海地区 表土花粉 A/C值 植被盖度 孢粉分析 |
Pollen distribution patterns of surface soil sample in Qinghai of China and their relationship with vegetation |
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| WEI Hai-cheng,ZHENG Zhuo,MA Hai-zhou,PAN An-ding,HUANG Kang-you,LUO Chuan-xiu,ZHENG Yan-wei,WANG Zhi-ying.Pollen distribution patterns of surface soil sample in Qinghai of China and their relationship with vegetation[J].Arid Land Geography,2009,32(6). | |
| Authors: | WEI Hai-cheng ZHENG Zhuo MA Hai-zhou PAN An-ding HUANG Kang-you LUO Chuan-xiu ZHENG Yan-wei WANG Zhi-ying |
| Institution: | WEI Hai-cheng1,ZHENG Zhuo2,MA Hai-zhou1,PAN An-ding3,HUANG Kang-you2,LUO Chuan-xiu2,ZHENG Yan-wei2,WANG Zhi-ying3(1 Qinghai Institute of Salt Lake,Chinese Academy of sciences,Xining 810008,Qinghai,China,2 Department of Earth Science,Sun Yat-sen University,Guangzhou 510270,Guangdong,3 College of Geographical Science,Guangzhou University,Guangzhou 510006,China) |
| Abstract: | Qinghai Province lies in the transitional area from semi-arid to arid region in China.In order to reveal the characteristics of pollen distribution and the quantitative relationship between vegetation communities and their pollen spectra for surface soil sample in this area,we firstly carried out on-site vegetation investigation in the pollen sample locations.Our results show that the principal vegetation types in Qinghai are coniferous forests,mixed coniferous and broadleaf forests in the mountains of the ... |
| Keywords: | Qinghai area surface soil pollen A/C ratio vegetation coverage pollen analysis |
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