| 不同土壤类型下桃树水分运转动态的数学模拟 |
| |
| 引用本文： | 高照全,冯社章,王小伟.不同土壤类型下桃树水分运转动态的数学模拟[J].天津农业科学,2010,16(4):1-4. |
| |
| 作者姓名： | 高照全 冯社章 王小伟 |
| |
| 作者单位： | 1. 北京农业职业学院,北京,102442
2. 北京市农林科学院林业果树研究所,北京,100093 |
| |
| 基金项目： | 北京市教委项目，北京市科委项目 |
| |
| 摘 要： | 为定量的刻画不同土壤类型和水分条件对桃树蒸腾作用的影响,根据不同土壤的水分特征曲线、气孔导度模型、冠层蒸腾模型和水分传输模型模拟出不同土壤类型下桃树的水分运转动态。数值模拟表明,在逐步干旱过程中,各类土壤维持桃树蒸腾的时间依次为壤土砂土改良粘土砂壤土粘土;桃树散失的水分总量依次为砂土壤土改良粘土砂壤土粘土。在整个干旱周期过程中,气孔导度和叶片水势均呈波动式减小,其总体趋势与土壤水势相一致。计算表明,砂土的保水能力最差,粘土的可利用水最少,壤土维持蒸腾的时间最长,粘土用有机物改良后可利用水和维持蒸腾的时间显著增加。
|
| 关 键 词： | 桃树 水分 运转 模拟 |
Simulation of Dynamic for Water Transport in Different Soil Types in Peach |
| |
| GAO Zhao-quan,FENG She-zhang,WANG Xiao-wei.Simulation of Dynamic for Water Transport in Different Soil Types in Peach[J].Tianjin Agricultural Sciences,2010,16(4):1-4. |
| |
| Authors: | GAO Zhao-quan FENG She-zhang WANG Xiao-wei |
| |
| Institution: | GAO Zhao-quan1,FENG She-zhang1,WANG Xiao-wei2 (1.Beijing Agricultural Vocation College,Beijing 102442,China,2.Institute of Forestry and Pomology,Beijing Academy of Agriculture and Forestry Sciences,Beijing 100093,China) |
| |
| Abstract: | The dynamic of water transport of peach trees by mathematical simulation was studied in this paper.The dynamic for water transport was simulated according to the water characteristic curves,model of stomatal conductance,canopy transpiration and water transport in different soil types.The results showed that under gradual drought in different soil types the length of time to keep normal transpiration in peach was soil> sandy> improved clay> sandy soil> clay,and the total water content lost was sandy> soil> i... |
| |
| Keywords: | peach water transport simulation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
