油松林生物量—密度管理图

The Biomass-Density Control Diagrams for Pinus tabulaeformis Stands

依据中国6省421块油松纯林标准地资料编制了油松林分生物量—密度管理图。其中,干量、地上部量及总生物量密度图的估计相对精度在95％以上,并能通过适合性F检验;叶量、枝量和根量的相对估计精度分别为95.2％、92.8％和93.4％。

Based on the data of 421 sample plots and 835 sample trees obtained from 6 provinces in China, the Biomass and Density control diagrams for Pinus tabulaeformis Carr. were derived. The relative precis-ions of the control diagrams for the stem, the branch, the leaf, the root, the aboveground biomass and the total biomass are 95.5%, 92.8%, 95.2%, 93.4%, 95.5%, 95.4%, respectively. And the diagrams of the stem, the total biomass and the aboveground biomass can pass the test of fitness(F-test)