A Modelling of Moisture and Heat Transfers in SPAC

Abstract

A dynamic mathematical model is proposed to simulate the moisture and energy fluxes in a plant ecosystem. Hourly and daily processes of five important variables---leaf temperature, leaf moisture potential, air temperature and humidity within the canopy, and temperature on soil surface---can be gained by using the model. Temperature difference between plant leaves and surrounding air is paid attention, and difficultly-measured plant potential or temperature could be derived from normal meteorological data.