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| 环境因素对植物导水率影响的研究综述 | |
| 引用本文： | 杨启良,张富仓,刘小刚,张楠,戈振扬.环境因素对植物导水率影响的研究综述[J].中国生态农业学报,2011,19(2):456-461. |
| 作者姓名： | 杨启良 张富仓 刘小刚 张楠 戈振扬 |
| 作者单位： | 1. 昆明理工大学现代农业工程学院,昆明650224;西北农林科技大学旱区农业水土工程教育部重点实验室,杨凌712100 2. 西北农林科技大学旱区农业水土工程教育部重点实验室,杨凌,712100 3. 昆明理工大学现代农业工程学院,昆明,650224 |
| 基金项目： | 国家自然科学基金项目(51009073, 50579066, 50879073)、云南省应用基础研究面上项目(2010ZC042, 2010ZC043)和昆明理工大学学生课外学术科技创新基金课题(2010BA132)资助 |
| 摘 要： | 植物的导水率表示单位压力梯度植物传导水分的通量, 是根系吸收及传导水分能力大小的一个重要生理生态指标。植物导水率受内在和外在因素的影响而发生明显变化。本文重点概述了包括根区土壤水分、养分、盐分、温度和灌溉方式等外在因素对植物导水率影响的研究进展。深入阐明不同环境因素下的植物导水率, 不仅可充实SPAC 系统水分传输理论, 而且有助于明确植物对环境的适应机制和高效用水的潜力。 |
| 关 键 词： | 植物导水率 环境因素 SPAC 水分传输 |
| 收稿时间： | 2010/6/28 0:00:00 |
| 修稿时间： | 2010/10/28 0:00:00 |
Research progress in plant hydraulic conductance under different environmental factors |
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| YANG Qi-Liang,ZHANG Fu-Cang,LIU Xiao-Gang,ZHANG Nan and GE Zhen-Yang.Research progress in plant hydraulic conductance under different environmental factors[J].Chinese Journal of Eco-Agriculture,2011,19(2):456-461. | |
| Authors: | YANG Qi-Liang ZHANG Fu-Cang LIU Xiao-Gang ZHANG Nan and GE Zhen-Yang |
| Institution: | Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650224, China; Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A & F University, Yangl;Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A & F University, Yangling 712100, China;Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650224, China; Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A & F University, Yangl;Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650224, China;Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650224, China |
| Abstract: | Plant hydraulic conductance (K) refers to the rate of water flow (kg·s-?) per unit pressure drop (MPa), which drives flow through the plant or plant organ systems. It is an important eco-physiology index for measuring root water absorption and transmission capacity. Both internal and external factors could significantly change plant hydraulic conductance. This article summarized main research progress on the effects of environmental factors on plant hydraulic conductance. Environmental factors such as root zone soil moisture, nutrient, salinity, temperature and irrigation modes were analyzed. The paper threw further light on plant hydraulic conductance under different environmental factors. This had an important function in strengthening SPAC water transport theories and defining plant adaptive mechanisms to environmental conditions and high water use potential. |
| Keywords: | Plant hydraulic conductance Environmental factor SPAC Water transport |
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