【作者】 高照全； 魏钦平； 王小伟； 秦玲；

【Author】 Gao Zhaoquan, Wei Qinping, Wang Xiaowei and Qin Ling( Institute of Forestry & Pomology, Beijing Academy of Agriculture & Forestry Sciences, Beijing 100093, China; College of Horticulture, Northwest Sci-Tech University of Agriculture and Forestry, Yangling 712100, China)

【机构】 北京市农林科学院林业果树研究所； 西北农林科技大学园艺学院；

【摘要】 利用气孔导度的经验模型和Penman-Monteith公式,并结合气象因子的变化模拟出了桃树(Pruns persica var.nectarina Maxim)蒸腾速率日变化。通过数学模拟发现无论是晴天还是阴天蒸腾速率都是一个单峰曲线,只在中午略有波动,而气孔导度在晴天是双峰曲线,在阴天则是单峰曲线。计算表明影响蒸腾日变化的主要气象因子是太阳辐射、大气温度和湿度,植物通过气孔导度的改变来响应环境因子的变化。更多还原

【Abstract】 The diurnal variety of peach transpiration was simulated by experiential stomatal model, Penman-Monteith formula and variety of weather factors. It was showed that transpiratory rate is a single peak curve in clear day and overcast day, but fluctuating in middy. There are two peaks of stomatal curve in clear day, and one peak in overcast day. Calculation showed that the main factors which impact diurnal variety of transpiration are solar radiation, air temperature, and air humidity. The plant through change the size of stomatal to response the variety of circumstance.更多还原