| 氧化环境对油松花粉保存影响实验研究 |
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| 引用本文： | 曹现勇,田芳,许清海,李月丛,陈利,白旋.氧化环境对油松花粉保存影响实验研究[J].冰川冻土,2009,31(3). |
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| 作者姓名： | 曹现勇 田芳 许清海 李月丛 陈利 白旋 |
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| 作者单位： | 河北师范大学,资源与环境科学学院,河北,石家庄,050016;河北省环境演变与生态建设实验室,河北,石家庄,050016 |
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| 基金项目： | 国家自然科学基金重点项目，国家自然科学基金项目，教育部博士点专项科研基金项目，河北省博士基金项目，河北省高校重点学科建设项目资助 |
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| 摘 要： | 花粉保存能力差异是影响花粉谱准确性的重要因素之一,采用KMnO4溶液和HNO3溶液作为氧化剂,模拟自然环境氧化条件对油松花粉保存影响情况.结果表明:同一KMnO4溶液浓度条件下,随时间延长油松花粉完好率呈下降趋势;浸泡相同时间,随KMnO4溶液浓度增大油松花粉完好率亦明显下降.经68%HNO3溶液浸泡18 h后,残留的完好花粉外壁变薄,纹饰变模糊,24 h后花粉几乎完全被溶解.一般认为油松花粉保存能力较强,而经2%KMnO4溶液和68%HNO3溶液处理后,发现在短时间内就足以使油松花粉大量破碎或溶解,表明氧化环境对油松花粉保存影响强烈.氧化环境对油松花粉腐蚀作用强于碱性环境.
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| 关 键 词： | 氧化环境 油松花粉 花粉保存 花粉蚀变 |
A Laboratorial Study of the Effect of Oxygenation Environment on the Preservation of Pinus tabulaeformis Pollen |
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| CAO Xian-yong,TIAN Fang,XU Qing-hai,LI Yue-cong,CHEN Li,BAI Xuan.A Laboratorial Study of the Effect of Oxygenation Environment on the Preservation of Pinus tabulaeformis Pollen[J].Journal of Glaciology and Geocryology,2009,31(3). |
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| Authors: | CAO Xian-yong TIAN Fang XU Qing-hai LI Yue-cong CHEN Li BAI Xuan |
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| Institution: | 1.College of Resource and Environment Sciences;Hebei Normal University;Shijiazhuang Hebei 050016;China;2.Hebei Key Laboratory of Environmental;Change and Ecological Construction;China |
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| Abstract: | Pollen is one of the important indexes in reconstructing paleoclimate and paleoenvironment.The difference of preservation abilities of different pollen taxa is very important to pollen spectra veracity.It is generally believed that oxygenation action is one of the strongest chemical actions to pollen preservation,so the longer pollen exposed in surface soil,the greater possibility of pollen being oxygenated.In order to validate the statement,the destructive effect of oxygenation environment on Pinus tabulae... |
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| Keywords: | oxygenation environment Pinus tabulaeformis pollen preservation pollen eroding |
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