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作 者 ：张家贤, 袁永珍

期 刊 ：植物生态学报 1988年 12卷 1期 页码：63-69

关键词：海南五针松；生物量；生产力；

Keywords:Pinus fenzeliana, Biomass, productivity,

摘 要 ：本文是对海拔930m的17年生海南五针松(Pinus fanzeliana)人工林分生物量和生产力进行了测定和研究。按平均标准木法和样方收获法分别调查了乔木层，灌木层，草本地被物层和枯枝落叶层。据调查数，建立了估测乔木层单株林木各器官干重的回归方程。方程的相关系数和估测精度都较高，具有参考价值．分析结果表明：林分总生物量平均为161.152t／ha，生产力为10630.69kg／(ha·a)，其中：乔木层生物量为149.351t／ha，生产力为11095kg／(ha·a)，叶面积为199248.734m2／ha，叶面积指数为19.9149m2／m2。

Abstract:

The article is about the preliminary research of the plant biomass and production of an elabrate middle-age stand (Pinus fenzeliana) at an elevation for 930 m. By using "average standard tree" and "divided storeys" methods. The biomass and production of the trees such as sampling undergrowth, living planters and dead branches and leaves were studied. The following regression equations were derived. The result of analysis shows

Lg Wtrunk = 0.689628 Lg (D2H) - 0.73557

Lg Wbark = 0.395292 Lg (D2H) - 0.555636

Lg Wbranch = 0.663534 Lg(D2H) - 1.096486

Lg Wleaf = 0.653243 Lg(D2H) - 1. 400558

Lg Wroot=0.634176 Lg(D2H)-l.046108

The estimated total biomass of P. fenzeliana forest community is 161.152 t/ha, productivity 10630.69 kg/ha·a, Total aboveground biomass of P. fenzeliana is 149.35 t/ha, productivity 11095 kg/ha·a, in which the percentages of trunk, bark,branches,leaves and roots are 49.86 %, 8.21%,17.86 %, 8.09% and 15.98% respectively. The biomass percentages of P. fenzeIiana tree, sampling undergrowth and living plant covers and dead branches and leaves are 92.67%, 3.17%, 0.57% and 3.59% respectively. Leaf area is 199248.74 m2/ha, leaf area index (LAI) is 19.9149.

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