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二、总生物量和生产力林分不同径级林木的各组成部分的总生物量如表2。人工林地上部分总生物量是71,736kg/ha其中Ⅲ,Ⅳ级树占92％(66,395kg/h)Ⅰ、Ⅱ级树占8％,在林木的各组成部分中也发现了同样趋势。例如:Ⅲ、Ⅳ级林木的树皮部分生物量(7235+1313kg/ha)是总树皮量9281kg/ha的92％,同样Ⅲ、Ⅳ级树干量也占总于量41583kg/ha的94％,这两级林木枝量占总枝量(6956kg/ha)的87％。这是Ⅲ、Ⅳ级林木与Ⅰ
Total biomass and productivity stands The total biomass of the components of different-diameter forest stands is shown in Table 2. The total aboveground biomass of the plantation was 71,736kg / ha, of which, Grade III and IV trees accounted for 92% (66,395kg / h) and Grade II and Grade II trees accounted for 8%. The same trend was also found in the components of the forest. For example, the bark biomass (7235 + 1313kg / ha) of Grade III and Grade IV barks is 92% of the total bark of 9281kg / ha, and the same grade Ⅲ and Grade Ⅳ trunks also account for 94% of the total quantity of 41583kg / ha. , The two branches accounted for 87% of the total branch volume (6956kg / ha). This is Grade Ⅲ and Grade Ⅳ trees and Ⅰ