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对海堤防护林水杉、刺槐和柳杉林分生物量进行测定 ,建立了林木干、皮、枝、叶、根及全树生物量相对生长模型。据此模型和每木检尺数据估算 ,柳杉、刺槐和水杉林分乔木层的现存生物量分别为 110 87,89 51和 72 18t/hm2 ,年均净生长量分别为 6 52 ,4 48和 4 81t/hm2 。刺槐、水杉干材最大 ,占林分总生物量 6 6 %～ 6 2 %。柳杉干材仅占 4 7 6 % ,而枝叶约占 30 %。
The biomass of Metasequoia glyptostroboides, Cryptomeria fortunei and Cryptomeria fortunei in the seabed shelter forest was measured, and the biomass relative growth models of stem, skin, branch, leaf, root and whole tree were established. According to the model and the data of each wood ruler, the existing biomass of Cryptomeria japonica, Locust tree and Metasequoia stand were 110 87, 89 51 and 72 18 t / hm2, respectively, and the annual average net growth were 6 52 and 48 And 4 81t / hm2. Black locust, the largest drywood, accounting for 6 6% to 6 2% of total stand biomass. Cunninghamia lanceolata dry material only accounted for 476%, while leaves accounted for about 30%.