北川3种箭竹属植物地上生物量结构和回归模型的研究  

A Study of Above-ground Bimass structure and the Regression Models of Three species of Fargesia in Beichuan

作　　者：唐婷[1] 胡进耀[1] 杨远兵[1] 傅红伟 邓东周[3] 

机构地区：[1]绵阳师范学院生命科学学院,四川绵阳621000 [2]北川羌族自治县林业局,四川北川622750 [3]四川省林业科学研究院,四川成都610081

出　　处：《四川林业科技》2015年第2期32-37,共6页Journal of Sichuan Forestry Science and Technology

基　　金：四川省科技支撑项目"北川灾后山地森林植被恢复与重建技术研究与示范"(2010SZ0036);北川羌族自治县汶川地震灾后大熊猫等保护及栖息地恢复重建项目

摘　　要：为深入了解箭竹群落生态学过程,探索大熊猫栖息地承载量,研究了北川小寨子沟自然保护区3种箭竹属植物油竹子、华西箭竹和糙花箭竹地上生物量分配格局,并建立了各器官生物量与基径和竹高的拟合模型。结果表明:(1)3种箭竹地上各器官中,竹秆的生物量最大,其次为竹枝和竹叶;其中在竹秆生物量分配中油竹子>华西箭竹>糙花箭竹,在竹枝生物量分配中糙花箭竹>油竹子>华西箭竹,在叶片生物量分配中糙花箭竹>华西箭竹>油竹子。(2)3种箭竹各器官生物量与基径(BD)有较好的相关性,其中基径(BD)与油竹子、华西箭竹、糙花箭竹鲜秆质量(W1)的拟合模型分别为W1=1/[7.761+(-29.385e-B)]、W1=0.367B2.614、W1=1/[4.804+(-11.414e-B)],根据这些模型可以较准确地估算出这3种箭竹群落的生物量,进而估算出大熊猫栖息地的承载量。In order to understand the community ecology process of Fargesia and explore the carring ca- pacity of panda habitat, studies were made of on the biomass distribution pattern of above-ground organs of three kinds of Fargesia and the regression models of each biomass component were also based on BD and culm height. The results showed that ： （ 1 ） among the above-ground organs, the culm biomass was much more than the branch and leaf biomass. In the culm biomass allocation, Fargesia angustissima 〉 Fargesia nitida 〉 Fargesia scabrida. In the branches biomass allocation, Fargesia scabrida 〉 Fargesia angustissima 〉 Fargesia nitida. In the leaf biomass, Fargesia scabrida 〉 Fargesia nitida 〉 Fargesia angustissima. （2） Various components were highly correlated with BD. The models of fresh culm weight（ W1 ） based on BD of the three Fargesia species were W1 = 1/[7.761 ＋ （ -29. 385e^-B） ] （Fargesia angustissima）, W1 = 0. 367B^2 614（ Fargesia nitida）, W1 = 1/[ 4. 804 ＋ （ -11. 414e^-B） ] （Fargesia scabrida）. According to these models the community biomass of those three Fargesia species could be accurately estimated, and thus the carrying capacity of panda habitat could also be estimated.

关 键 词：箭竹 生物量分配结构 回归模型 承载量 

分 类 号：S795[农业科学—林木遗传育种]