论文部分内容阅读
引言森林计测是森林清查中的主体工作内容。传统的地面计测方法不仅需要消耗大量的人力、物力和时间,而且工作很艰苦。森林遥感伎术的应用大大减轻了野外工作量,起到了经济、快速的效果。国外已用电子计算机图象处理设备及多阶抽样的方法来进行此项工作,国内也有人用电子计算机对遥感图象进行了不同林分蓄积量估测法的研究。由于这些方法所用的森林调查因子与常规方法有所不同,且需要昂贵的仪器设备,故在国内应用还不广泛。
Forests Forest measurement is the main content of forest inventory. The traditional ground measurement method not only consumes a lot of manpower, material and time, but also work hard. The application of forest remote sensing technique has greatly reduced the workload in the field and played an economic and rapid effect. Foreign countries have used electronic computer image processing equipment and multistage sampling methods to carry out this work, some people use computer to remote sensing image of different stand volume estimation method. As the forest survey factors used by these methods are different from the conventional methods and require expensive equipment, they are not widely used domestically.