一、引言林木和森林的蒸腾是个复杂的过程。由于它同时受气温、湿度、风、辐射、土壤含水率等因子影响,加上林木株体庞大不便测试,所以很难得到定量研究的准确结果。已往关于蒸腾与环境因子关系的研究中,多探讨单因子的影响。伪如温度与蒸腾,饱和差与 I. Introduction Forest and forest transpiration is a complex process. Because it is affected by factors such as temperature, humidity, wind, radiation and soil water content at the same time, coupled with the huge inconvenience testing of forest trees, it is difficult to get accurate results of quantitative research. In the past on the relationship between transpiration and environmental factors in the study, more to explore the impact of single factor. Pseudo-temperature and transpiration, saturation and poor