森林多种效益,概括起来包括经济、生态、和社会三个方面的效益,而后两者在国计民生中日益占有越来越重要的地位。森林生态效益调查研究的重点之一是森林水文效益的计量,因为水在生态系统中是最活跃的成分,而森林 The various benefits of the forest can be summed up in three aspects: economy, ecology and social benefits, and the latter two increasingly occupy an increasingly important position in the national economy and the people’s livelihood. One of the focuses of research on forest ecological benefits is the measurement of forest hydrological benefits, as water is the most active component of ecosystems and forests