| 中原地区不同植被类型花粉组合特征及对周围植被的代表性 |
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| 引用本文： | 郑振华,田芳,曹现勇,许清海,李月丛,阳小兰.中原地区不同植被类型花粉组合特征及对周围植被的代表性[J].地理与地理信息科学,2008,24(4). |
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| 作者姓名： | 郑振华 田芳 曹现勇 许清海 李月丛 阳小兰 |
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| 作者单位： | 1. 河北省地理科学研究所,河北,石家庄,050011
2. 河北师范大学资源与环境科学学院,河北,石家庄,050016 |
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| 基金项目： | 国家自然科学基金
,
国家自然科学基金
,
科技部"攀登计划"
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高等学校博士学科点专项科研项目
,
河北省博士科研项目
,
河北省自然科学基金 |
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| 摘 要： | 中原地区落叶松林、阔叶杂木林、栎树林、油松阔叶混交林、竹林、柏树林、杨树林、河口草甸、农田花粉组合特征研究表明,森林植被花粉组合均以乔木花粉为主(占50%以上),平原区杨树林、河口草甸和农田均以草本花粉为主(占84%以上),均较好地反映了样点周围植被特征。松树林松树花粉高于70%,周围有少量松树的样点松树花粉占50%左右,周围没有松树的样点松树花粉在30%以下。落叶松林中落叶松花粉仅占2.4%,杨树林样品中未发现杨树花粉,竹林样品中禾本科花粉仅占3.4%,表明落叶松、杨树、禾本科花粉均具低代表性;判别分析也表明落叶松和杨树花粉呈低代表性。受周围和区域性植被影响,农田样点农作物花粉占30%左右,说明农田环境不利于花粉保存,故花粉浓度较其他植被类型低。
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| 关 键 词： | 中原地区 植被类型 花粉组合 判别分析 |
A Study on Surface Pollen Assemblage and Relationship with Vegetation from Some Vegetation Types in Central North China |
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| ZHENG Zhen-hua,TIAN Fang,CAO Xian-yong,XU Qing-hai,LI Yue-cong,YANG Xiao-lan.A Study on Surface Pollen Assemblage and Relationship with Vegetation from Some Vegetation Types in Central North China[J].Geography and Geo-Information Science,2008,24(4). |
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| Authors: | ZHENG Zhen-hua TIAN Fang CAO Xian-yong XU Qing-hai LI Yue-cong YANG Xiao-lan |
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| Abstract: | A study of surface soil pollen samples from larix forest,mixed forests of broad-leaved trees,oak forests,mixed forests of broad-leaved trees and pine,bamboo forests,cypress forest,poplar forest,meadows in the Yellow River estuary and farm fields in Central North China found that pollen assemblages from forest vegetations are dominated by arboreal pollen(above 50%),while it is dominated by herbs pollen(above 84%)that from poplar forest,river estuary meadow and agricultural fields in plain,and pollen assemblages can indicate vegetation well.The percentage of pinus pollen is up to 70% in pine forest,about 50% in the sample sites where pine is present,and under 30% in where pine absent.The percentages of larix pollen are under 2.4% even in the larix forest,popular pollen is absent in poplar forest and the percentages of Gramineae pollen are about 3.4% in bamboo forest,which prove their under-representation to vegetation,and the result of discriminant analysis also indicates larix and popular pollen is under-representative.The percentages of agricultural pollen are about 30% in samples from farm fields.The pollen assemblages in farm land are influenced by local and regional vegetation.The environment of farm lands is aggressive to pollen preservation and the pollen concentrations are lower than other vegetation types. |
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| Keywords: | the Central North China vegetation type pollen assemblage discriminant analysis |
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