Based on the data of forest resources inventories of Henan Province in 2003, forest biomass carbon storage is estimated using regression equation between biomass of various tree species and volume.
利用2003年河南省森林资源清查资料，建立不同优势树种生物量与蓄积量之间的回归方程，对河南省森林的碳储量进行了推算。
After introducing valuable hardwood tree species resources in subtropical area, we reviewed some studies of valuable hardwood tree species in past.
本文在阐述亚热带珍贵阔叶用材树种种质资源情况基础上，对所开展的珍贵阔叶用材树种的研究做了回顾。
Tree species resources of Qingdao city consists of 400 plant species, including 200 species of arbor, 139 species of bush, 34 species of ground cover and 3 species of bamboo.
青岛市树种资源的调查与选择结果：青岛市城市森林营建常用植物约400余种，其中乔木200余种、灌木139种、地被34种、竹类3种。
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