当前许多国家,如美国、加拿大、日本、瑞典、西德、苏联等在森林调查中已广泛使用电子计算机。电子计算机在充分利用森林调查资料,简化计算工序以及迅速计算分析各种所需调查成果方面具有显著的优越性,更重要的是电子计算机在森林调查中起到了技术革新的作用,许多调查新技术如连续森林调查中部分回置的估计技术,3P抽样,多相抽样等技术都是以它的计算基础的。美国林学会的《谷地硬阔连续森林清查》报告中提到几次复查中使用电子计算机的效率时说:“1948年用穿孔卡片和手摇计算机计算几百株树的材料用几天时间,1957年IBM650型电子计算机计算7000株树的材料用了四个小时,1962年用IBM709型电子计算机计算20000 At present, many countries such as the United States, Canada, Japan, Sweden, West Germany, the Soviet Union and other countries have made extensive use of electronic computers in forest surveys. Electronic computers have significant advantages in making full use of forest survey data, simplifying calculation procedures and rapidly calculating and analyzing various required survey results. More importantly, electronic computers have played a role in technological innovation in forest surveys. Many new technologies for investigation For example, estimation techniques such as partial reset in continuous forest surveys, 3P sampling and polyphase sampling are all based on its calculation. The American Academy of Forestry’s “Hard Valley Continuous Forest Inventory” report mentions the efficiency of using electronic computers in several reviews: "In a few days, in 1948, hundreds of trees were counted with perforated cards and hand-held computers, In 1957 IBM650 type computer calculated the tree material 7000 spent four hours in 1962 with IBM709 type computer 20000