| 酸性、碱性以及热处理环境下泡桐花粉保存实验研究 |
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| 引用本文： | 郭中领,许清海.酸性、碱性以及热处理环境下泡桐花粉保存实验研究[J].干旱区地理,2009,32(3). |
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| 作者姓名： | 郭中领 许清海 |
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| 作者单位： | 1. 北京师范大学地理学与遥感科学学院,北京,100875
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，北京市自然科学基金 |
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| 摘 要： | 在实验室条件下对泡桐花粉进行热处理、酸处理、碱处理.观察发现,泡桐花粉十分耐酸、碱和高温.用蒸馏水煮沸花粉混合液1～10 h,花粉几乎无变化;用5%氢氧化钠溶液煮沸泡桐花粉1～5小时,部分花粉外壁变得略为粗糙.用30%和40%的氢氧化钠溶液对其煮沸达3小时,个别花粉壁轻微破裂;用50%硫酸溶液煮沸泡桐花粉达3小时,镜下观察一少部分花粉碳化变黑,个别花粉壁破坏.整个实验中几乎没有花粉壁破坏严重,观察到的极个别破坏程度较大的花粉也不能断定是上述处理造成的.花粉的破坏和蚀变机理有待进一步研究.
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| 关 键 词： | 泡桐花粉 花粉保存 酸处理 碱处理 热处理 |
Preservation of Paulownia pollen under the condition of alkalescence,acidity and boiling treat |
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| GUO Zhong-ling,XU Qing-hai.Preservation of Paulownia pollen under the condition of alkalescence,acidity and boiling treat[J].Arid Land Geography,2009,32(3). |
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| Authors: | GUO Zhong-ling XU Qing-hai |
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| Institution: | GUO Zhong-ling~1,XU Qing-hai~2 (1 School of Geography,Beijing Normal University,Beijing 100875,China,2 School of Geography,Hebei Normal University,Shijiazhuang 050016,Hebei,China) |
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| Abstract: | Pollen grains and spores are very important index to reconstruct paleoclimate and paleoenvironment. However,even though in strata of the same age,contents of pollen grains and spores have great difference in different locations or from different sediments.One of the important reasons is that pollen grains and spores sediment under the different condition of alkalescence,acidity treat.The experiment of pollen preservation show that the Paulownia pollen grains have no any changes after boiling in the water fo... |
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| Keywords: | Poulownia pollen pollen preservation acid treat alkalescence treat hot water treat |
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