摘要
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 %。
Biomass regression estimative model of three main afforestation tree species is given according to the study on biomass and growing characteristics.Based on the estimative model,the total biomass and mean growing biomass annually of Robinia psendoacacia is 89 51 t/hm 2 and 4 48 t/hm 2, Metasequoia glyptostroboides is 72 18 t/hm 2 and 4 81 t/hm 2, and Cryptomeria fortunei is 110 87 t/hm 2 and 6 52 t/hm 2. The first author’s address:Jiangsu Academy of Forestry,Jiangsu Nanjing 211153 China
出处
《江苏林业科技》
2000年第2期12-15,共4页
Journal of Jiangsu Forestry Science & Technology
基金
国家"九五"科技攻关专题! (96 - 0 0 7 0 4 0 6 )部
