It is difficult to measure traditional measurements in the forest. The GPS area measuring instrument developed with the advancement of science and technology can play a unique role and unique advantages. Through this technology, the precise position and the size of the forest are satisfactory. . At the same time, the analysis of the distribution and intensity of the forest can be further completed, and the GPS area measuring instrument plays a vital role in the forestry work. Its application has brought strong support to the management model of information forestry and digital forestry. Gradually improving the application of GPS area measuring instrument in forestry will bring certain economic benefits.
In order to further demonstrate the error and accuracy in the application of the measurement area of ​​the GPS area measuring instrument, this study uses five kinds of woodlands with different sizes, different slopes and different uses to measure the area first, in order to accurately set the average value of three repetitions. The area is known for multiple comparisons, and the statistical calculation method is used for error calculation and precision analysis.
The absolute error of forest area measurement in forestry is generally between 0.030 and 0.044. The accuracy of forest area increases with the increase of area, and the error is opposite, which is correspondingly smaller. In the conventional cutting area survey design, the compass is used to measure the wire and determine the boundary and area of ​​the cutting area. This method is greatly affected by environmental factors, especially the small class is usually high-density, shrub, and routine measurement. The operation is very difficult, and it is much more convenient to measure the area with a mobile GPS area measuring instrument.
The GPS area measuring instrument uses the dynamic threshold method to improve the measurement of the cutting area survey design, which can overcome the difficulties caused by the invisibility and slope of the slope vegetation. The instrument system makes it easier for survey and design personnel to record the boundary coordinates of the cutting area in real time. The GPS area meter can be easily divided to find the area of ​​the cutting area. In short, the measurement work of the instrument in the forest is well improved, and the improvement of work efficiency is a distinct advantage.
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