以东北虎豹国家公园内“星机地”综合试验获取的激光雷达点云和地面样地调查成果为基础数据,以落叶松为重点案例,探索了激光雷达调查方式下落叶松林分蓄积量建模方法,并结合东北内蒙古重点国有林区二类调查成果,运用模型初步估算了该地区部分落叶松二类小班的公顷蓄积,实现了激光雷达科研模型成果在业务化应用方向上的一次有效尝试。从模型结果和小范围应用测试结果来看,落叶松林分蓄积量模型预估精度达到《森林资源规划设计调查技术规程》的要求,可以在实践中推广应用,但要想真正规模化业务生产和应用,还需要在模型精度、普适性和规模化应用效率上深耕细耘。

Based on the LIDAR point cloud and ground sample survey results obtained from the satellite-air-ground comprehensive test in the Northeast China Tiger and Leopard National Park,with emphasis on the larch(Larix spp.) case,this paper explored the laser radar survey mode method of larch forest volume model theory,and combined with the type 2 investigation results of key state-owned forest region of Inner Mongolia in northeast China.The results of the model were used to preliminarily calculate the hectare stock of some type 2 subcompartments of larch in this area,which was an effective attempt to apply the results of the Lidar research model in the direction of business application. From the model results and application test results in a small scale,larch forest stand volume precision of the model could meet the requirements of the forest resource planning and survey technology regulation,thus it can be applied in practice. To achieve truly scale business production and application,we need to make deep efforts in model precision,universality and scale application efficiency.