当前进行林业二类调查,一般采用了全局系统抽样与目测回归比估方法。以前样地蓄积和总体精度多以手工计算。尤其是外业工作紧张、条件差,调查人员体力消耗大,每天都要花费一定的精力和时间进行样地卡片的计算和检查,增加了野外人员的负担。现在利用PC—1500机可以高效率、高精度地处理样地材调料,把查人员从繁重的材料计算中解脱出来。现把该程序设计与使用作简单介绍。 Currently, the second type of forestry survey is carried out, which generally adopts the method of global system sampling and visual regression regression. In the past, the accumulation of samples and overall accuracy were mostly calculated by hand. In particular, the field work is stressful, the conditions are poor, and the investigators are physically exhausted. Every day, a certain amount of energy and time are spent on calculating and checking the plots of cards and increasing the burden on the field staff. PC-1500 machine now can be used to efficiently and accurately handle the plots of spices, the investigators from the heavy material calculations freed. Now the program design and use for a brief introduction.