在森林水文生态效益的计量研究中,观测和分析不同植被的水量平衡及其变化规律,有助于深入了解森林的水文学过程,揭示森林植被涵养水源、调洪补枯功能的本质规律。与此同时,对水文学过程中各种养分元素的动态进行定量研究,弄清森林生态系统中养分变化规律,对于评价森林的生态效益是非常必要的,并且也将为防护林营造工作提供科学的依据。为此,我们于1989年～1990年,在板桥河小流域对两种植被进行了水量平衡以及养分动态的 In the metrological study of the ecological benefits of forest hydrology, observing and analyzing the water balance of different vegetation types and their changing rules will help to understand the hydrological process of forests and reveal the nature of the functions of water conservation and flood control. At the same time, it is necessary to quantitatively study the dynamics of various nutrient elements in hydrological processes and to find out the regularity of nutrient changes in forest ecosystems, and to provide scientifically effective measures to evaluate the ecological benefits of forests. in accordance with. Therefore, from 1989 to 1990, we conducted water balance and nutrient dynamics on the two vegetation types in the Panchiao River catchment