摘要
为弥补小光斑激光雷达在林业研究中应用较少起步较晚,且研究结果精度不高的缺点,利用软件TerraScan及小光斑雷达数据自身的优点,对小兴安岭凉水地区的航拍数据进行了研究,并在此基础上估测了树高、胸径等林分参数及生物量,其精度均达到了90%以上,能够满足实际生产的需要。其中:树高的估测精度最高,为97%,表明小光斑激光雷达能够高效率、高精度地提供多种林分参数,可为林业生产及时准确地提供必要的数据支持。
Small-footprint lidar, having a late start, is used less in forestry research, and the precision of the research result by small-footprint lidar is not high. To compensate for the shortcomings of small-footprint lidar, the aerial data of Liangshui National Nature Reserve in Xiaoxing＇ an Mountains were studied by the existing software TerraScan, combined with the advantages of small-footprint lidar. Biomass and other stand parameters such as tree height, diameter at breast height, and etc. were estimated. Results show that the prediction accuracies of different stand parameters reach more than 90%, which can meet the requirement for actual production. The accuracy of tree height estimation is up to 97%. The small-footprint lidar can provide a wide variety of efl3cient forest parameters with high precision, which can supply accurate, timely and necessary data for forestry production.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2012年第1期39-43,共5页
Journal of Northeast Forestry University
基金
国家林业局"948计划"(2011-4-80)资助
"十二五"国家科技支撑项目(2011BAD08B01)
