Pinephytomassin different species composition plantations in the taiga north subzone of Arkhangelsk region

The article presents thedataon the relationship of different fraction phytomass ofpine trees with the irtaxa-tionaldiameterat the height of1.3 min pure and mixedforest stands. The data on the pine tree phytomassdistribution on the fractions are presented. The data of the pinephytomassin the standsof the different species composition, re-ducedto the fullness of1.0fornatural plantations are considered.