Measurement of Stumpage Factors and Its Applicability of the RD 1000
The traditional forest measuring instruments are very insufficient and cannot meet the requirements of providing the reliable stumpage data quickly,instantly and accurately for scientific research and other relevant departments.To make up the deficiency of current measuring instrument,an electronic tree measuring instrument which is manufactured by Laser Tech Company was introduced from America.To verify the accuracy and applicability of the RD 1000 tree measuring instrument,a series of researches based on the theory of error were implemented in Beijing Olympic Forest Park and Jiufeng National Forest Park.Measurement data of the traditional equipment calipers and total station had taken as the relative true value and a comparison was made between the relative true data and the RD 1000 measurement data.The results indicated that the RD 1000 could reach a millimeter level in the DBH measurement and a centimeter level in the measurement of the tree height,besides it had a wide applicability and was barely restricted by the site conditions.The RD 1000 could totally meet the requirement of precision forestry and provide a feasible technical support for the development of forestry in China.
国家科技期刊平台
NSTL
万方数据
维普
