Abstract:

On the basis of the original systematic sampling of forest resources,using high-definition imagery,combined with forest resources base maps,business archives,and other data,each sample plot is interpreted on a block-by-block basis to obtain stratification factors,and the types and weights of each stratum are determined.The sample size of the plan was sampled by stratification,supplemental surveys were conducted,and the number of features of different scenarios was calculated and compared.The results show that the adoption of high-definition image stratified sampling technology can significantly reduce the number of survey sites and improve the sampling accuracy,which has extensive popularization value.

Key words: stratified sampling, high-definition video, forest resources survey, forest volume, Songyang County