| 林木耗水调控机理研究进展 |
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| 引用本文： | 奚如春,马履一,王瑞辉,徐军亮.林木耗水调控机理研究进展[J].生态学杂志,2006,25(6):692-697. |
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| 作者姓名： | 奚如春 马履一 王瑞辉 徐军亮 |
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| 作者单位： | 1. 北京林业大学资源与环境学院教育部森林培育与保护重点实验室,北京,100083;江西省林业科学院,南昌,330032
2. 北京林业大学资源与环境学院教育部森林培育与保护重点实验室,北京,100083 |
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| 基金项目： | 中国科学院资助项目;北京市自然科学基金;高等学校博士学科点专项科研项目;教育部重点实验室基金 |
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| 摘 要： | 林木的蒸腾耗水量是造林设计与环境水分研究的重要参数。本文就林木耗水的气孔与非气孔调节机制、木质部空穴和栓塞的发生和恢复机理、树体组织水容等方面进行了综述,对它们在树木水分传输过程中的调控作用和意义开展了探讨。目前在蒸腾气孔调节方面,包括,蒸腾午休、夜间蒸腾、气孔振荡和补偿现象等气孔行为的研究工作有待深入。栓塞木质部和空穴化导管恢复的临界条件与重新充注对植物水分运输的重要生理作用要进一步加强。树体组织水容对树木水分传输和耗水的调控机制问题应加以重视。
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| 关 键 词： | 气孔与非气孔 导管空穴化 木质部栓塞 水容 |
| 文章编号： | 1000-4890(2006)06-0692-06 |
| 修稿时间： | 2005年6月20日 |
Research advances in water consumption controlling mechanisms of forest tree species |
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| XI Ruchun,MA Lüyi,WANG Ruihui,X Junliang.Research advances in water consumption controlling mechanisms of forest tree species[J].Chinese Journal of Ecology,2006,25(6):692-697. |
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| Authors: | XI Ruchun MA Lüyi WANG Ruihui X Junliang |
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| Institution: | XI Ruchun,WANG Ruihui,X(U) Junliang |
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| Abstract: | Water consumption of tree species is an important parameter of afforestation designs and environment water project researches.This paper summarized the researches on the stoma and none-stoma controlling mechanisms for leaf transpiration of tree species,the mechanisms of conduits cavitation and xylem embolism,and the concept of wood tissue water capacitance.The important actions and significance in controlling sap flow process were discussed,and further researches of water consumption controlling mechanisms of forest tree species were prospected,including the mechanisms of noon-break transpiration and night-time transpiration,effects on stoma oscillation and compensation,critical revival or conditions of conduits cavity and xylem embolism,as well as controlling mechanisms of wood tissue water capacitance. |
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| Keywords: | stoma and none-stoma conduits cavitaion xylem embolism water capacitance |
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