决定森林航测调查精度的一个重要因素就是在调查因子与判读因子之间建立“可靠”的回归方程。本文介绍一种在相关变量诸回归方程中如何选择最优方程的方法。这是一种所谓择优录取的方法。具体地说,就是对各回归方程的重要特征值评分。如将各回归方程同一特征值按一定顺序排列(由大 An important factor that determines the precision of forest aerial survey is to establish a “reliable” regression equation between the investigation factor and the interpretation factor. This article describes how to choose the optimal equation in the regression equations of the related variables. This is a so-called merit-based admission method. Specifically, it is the importance of each regression equation eigenvalue score. Such as the regression equation of the same eigenvalues ​​arranged in a certain order (by large