摘要
通过收集山东省不同林龄、立地、密度的松类(黑松、赤松、油松)的样木资料,采用多模型优选法研制松类二元立木材积表,并用相关指数、残差平方和作为评价指标,评价模型优劣。经检验,所编的材积表完全符合生产上的精度要求,且编表结果可靠,可在森林资源调查中推广应用。
Through collecting the sample of different ages, sites, densities of pine tree in Shandong, pine tree dual volume table was made by multiple models optimum seeking method The relevant index, sesidual sum of squares were used as the evaluation index,. Through test, the volume table met the productive requiment. ,it could be popularized and applied in forest resource investigation.
出处
《山东林业科技》
2012年第3期90-92,共3页
Journal of Shandong Forestry Science and Technology
关键词
松类
二元材积表
多模型优选法
Pine tree
dual volume table
multiple models optimum seeking method
