摘要
研究了20a生油松的蒸腾速率与环境因子的关系。结果表明:油松生长期内的蒸腾速度呈双峰型变化,平均蒸腾速度为0.501 5 m ol/g·s;影响油松蒸腾速率的主要因子是空气相对湿度、光照。
The relationship between the transpiration rates of 20 year old Pinus tabulaeformis and the factors of environent were studied. The results showed that in growing season, the transpiration rates of P. tabulaeformis appeared a double peak change. The average transpiration rates were 0.501 5mol/g·s. The pricipale factors influencing the transpiration rates were relative humidity, illuminance and soil humidity.
出处
《西北林学院学报》
CSCD
北大核心
1999年第4期27-30,共4页
Journal of Northwest Forestry University
基金
陕西省自然科学基金
关键词
油松
蒸腾速率
环境因子
Pinus tabulaeformis
transpiration rate
environment factor