植物生态学报 ›› 1993, Vol. 17 ›› Issue (4): 371-377.

• 论文 • 上一篇    下一篇

白水江自然保护区糙花箭竹天然林生物量与生产力的初步研究

黄华梨   

  • 发布日期:1993-04-10
  • 通讯作者: 黄华梨

A Preliminary Study on the Biomass and Primary Production of a Fargesia scabrida Forest in the Baishuijiang Nature Reserve, Gansu Province

Huang Hua-li   

  • Published:1993-04-10
  • Contact: Wu Bang-xing Xiang Ying-hai

摘要: 本文根据样方上测定糙花箭竹的地径、茎高、密度、茎重、枝条重、叶重和鞭系重资料,研究竹林生物量和生产力,并建立回归数学模型为:茎重Ws=160.942+0.227(D2NH) p<0.001 枝条重WB=76.008+0.039(D2NH) p<0.001 叶重WL=80.643+0.051(D2NH) p<0.001 鞭系重WR=285.554+0.074(D2NH) p<0.001由方程估测出天然糙花箭竹林的各器官干重分别为茎7.558,枝条1.782,叶2.143,鞭系4.795t/ha。总生物量为16.278t/ha,平均净生产量为3.256t/ha。

Abstract:

The biomass and primary production of a natural Fargesia scabrida forest were determined based upon the regression models obtained by measuring the average basal diameter (D), density (N), plant height (H), and the dry weights of stems(Ws), branches(WB), leaves(WL) and rhizomes(WR) of Fargesia scabrida plants in the sampling quadrats. The regression models are as follows:

Ws=160.942+0.227(D2NH) p<0.001

WB=76.008+0.039(D2NH) p<0.001

WL=80.643+0.051(D2NH) p<0.001

WR=285.554+0.074(D2NH) p<0.001

By using these models, we calculated that the biomasses of stems, branches, leaves and rhizomes were 7.558 t/ha., 1.782 t/ha., 2.143 t/ha. and 4.795 t/ha., respectively. The total biomass was 16.278 t/ha. The net primary production was estimated to be 3.256 t/ha./yr.