Applications of laser range-finding in forestry
Data collection is used for forestry resources inventory, that is, tree height, height that can be used as commercial timber, vegetation mapping, wild special tree species, excellent tree species location, determination of tree grade and economic value in the area, or in cultivation management research. branches, determining tree locations where specific heights are produced, profiling felled volumes, and determining resource boundaries; used for topography, mapping, and for general purposes of baling lumber pathways when harvesting lumber considering baling lumber methods Pre-construction surveys of roads and rough trails are important. Various problems (eg: cost, accuracy, obstructions, etc.) may be encountered using conventional surveys, aerial photography, and GPS positioning that have been available in the past.
Application of Laser Range Finder in Forestry
Field data collection is a problem that has long plagued surveyors, cartographers, GIS database managers, engineers and researchers. The problem is simple: how to efficiently and accurately collect location and physical characterization data for mapping, cataloging, inventory, and storage in databases.
Finding out the outcome of this problem in a given situation is annoying. because:
(1) There may be many methods and techniques that can be used;
(2) In the vast majority of cases, no method alone can provide complete and satisfactory results.
The application of laser technology, especially the laser rangefinder developed by American Laser Technology Corporation (LTI), has been perfected since 1990, when it was used as a field measurement prototype by the Forestry Bureau of the United States Department of Agriculture and evaluated its future development and application, and it can be combined with data acquisition device, GPS connection, and can be configured with a variety of software, so that forestry surveying advances from the hand-operated compass, rope, inclinometer and old-fashioned telescope to the era of single-person operation, all-site, comprehensive and comprehensive multi-purpose instruments.
The measurement system designed by LTI is suitable for basic vegetation resources and timber sales inspection and planning measurement, logging volume distribution map and road survey measurement. By June 1993, the US Forest Service had purchased more than 150 of these instruments. In field planning use by the USDA Forest Service, the laser range finder is not only functional, accurate and durable, but also cost-effective, especially where the target is unclear. This is evident from the scrublands of northern Idaho to the great rain forests of southeastern Alaska.
The country with vast resources is rich in forestry resources. With the large-scale production brought about by the reform and opening up, the important position of forestry in the national economy has become increasingly prominent, and the demand for commercial timber has surged. How to plan the development of forestry, measure forestry resources with higher precision, and more accurately check and catalog forestry resources focusing on timber sales have become important issues for the forestry department. Our introduction of laser measurement technology will help promote my country's forestry measurement technology into a new era.
