| 对紫藤和凌霄花的输水结构与水流速度的初步研究 |
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| 引用本文： | 张秀军 孟利军 等. 对紫藤和凌霄花的输水结构与水流速度的初步研究[J]. 南开大学学报(自然科学版), 2001, 34(2): 95-98 |
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| 作者姓名： | 张秀军 孟利军 等 |
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| 作者单位： | [1]唐山师范专科学校生物系，唐山063000 [2]唐山大学化学工程系，唐山063000 |
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| 基金项目： | 国家自然科学基金!(396 70 46 ) |
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| 摘 要： | 用热脉冲技术，测定了南开大学校园内2种藤本植物紫藤（Wistaria sinensis Sweet)和凌霄花（Campsis grandiflora Lise)茎干的液流速度，并对两种植物的输水结构进行了解剖学研究，结果表明，两种植物一天中的液流速度均较高，且最大值位于靠近形成层的区域，两种植物输水结构也表现出了相似的特征，液流速度与其解剖结构密切相关。
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| 关 键 词： | 热脉冲技术 紫藤 凌霄花 输水结构 液流速度 导管 藤本植物 解剖学结构 |
| 文章编号： | 0465-7942(2001)02-0095-04 |
| 修稿时间： | 2000-01-28 |
A PRELIMINARY STUDY ON THE WATER TRANSPORT STRUCTURES AND WATER FLOW VELOCITY OF WISTARIA SINENSIS SWEET AND CAMPSIS GRANDIFLORA LOISE |
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| ZHANG Xiujun ,MENG Lijun ,LUO Lixin ,WU Shuming. A PRELIMINARY STUDY ON THE WATER TRANSPORT STRUCTURES AND WATER FLOW VELOCITY OF WISTARIA SINENSIS SWEET AND CAMPSIS GRANDIFLORA LOISE[J]. Acta Scientiarum Naturalium University Nankaiensis, 2001, 34(2): 95-98 |
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| Authors: | ZHANG Xiujun MENG Lijun LUO Lixin WU Shuming |
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| Affiliation: | ZHANG Xiujun 1,MENG Lijun 2,LUO Lixin 3,WU Shuming 3 |
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| Abstract: | The heat pulse technique was applied to determine the stem water folw velocity of Wistaria sinensis Sweet and Campsis grandiflora Loise in Nankai University campus. The water transport structures of these two plants were studied by means of wood anatomical method. The results showed that there were little changes of water folw velocity and the velocity is relatively high all the day. The relative point where the maximum sapflow velocity occurred is near the cambium. The characteristics of the water transport structures are similar in these two plants. There are close relationships between sapflow velocity and anatomical structures of xylem. |
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| Keywords: | heat pulse technique Wistaria sinensis Sweet Campsis grandiflora Loise water transport structure sapflow velocity vessels |
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