根据最小二乘（LS）原理，借助遥感和地理信息系统，研究森林蓄积定量估测量优自变量的选择方法。通过实例分析了LS估计确定森林蓄积自变量的选择规律，并探讨了LS估计预报森林蓄积的潜力，对实际工作具有一定的指导意义。

The optimum variable selecting method on the forest volume quantitative estimation based on RS and GIS through the principle of least square is studied. The law of the variable selection on forest volume estimation is analyzed in detail by means of the real example, at the same time the predicting potentiality of forest volume through LS estimation is also discussed. The method has some guiding significances for the practical job.