人工林内温、湿特性的数值模拟

<正>本文根据气象学中描述热力-动力学过程的湍流运动方程组,给出了模拟人工林内温度(包括地温)、湿度变化的数值模型。与通用的气象学模式不同的是,本文重点考虑了林冠内部的太阳辐射和热辐射过程、树木的蒸腾作用、冠层几何学特点以及叶子的生理学特性等。将模式的输出结果与实测资料相比较,其一致性是令人满意的。

A NUMERICAL STUDY ON THE CHARACTERISTICS OF TEMPERATURE AND HUMIDITY WITHINAN ARTIFICIAL FOREST

In this paper, a numerical model is presented for simulating the variations of temperature (including soil temperature) and humidity within an artificial forest. The theory is based on the turbulence equations of thermal-dynamics in meteorology. The main factors we consider in present model are: the radiation of the sun and thermal processes within a forest canopy, the evapotranspiration of the tree, the geometric feature of the canopy, and the physiologic properties of leaves etc., which are not considered by meteorologists in their routine works. As we compare the results from the model with the observation data, the consistency is quite satisfactory.