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林业科学 ›› 2004, Vol. 40 ›› Issue (6): 20-24.doi: 10.11707/j.1001-7488.20040604

• 论文及研究报告 • 上一篇    下一篇

毛竹林的碳密度和碳贮量及其空间分布

周国模 姜培坤   

  1. 浙江林学院,临安311300
  • 收稿日期:2003-06-18 修回日期:1900-01-01 出版日期:2004-11-25 发布日期:2004-11-25

Density, Storage and Spatial Distribution of Carbon in Phyllostachy pubescens Forest

Zhou Guomo,Jiang Peikun   

  1. Zhejiang Forestry College Lin'an 311300
  • Received:2003-06-18 Revised:1900-01-01 Online:2004-11-25 Published:2004-11-25

摘要:

利用标准样方法研究毛竹林碳密度和碳贮量以及空间分布。结果表明:毛竹不同器官碳密度波动在0.4683~0.5210g·g-1 ,按碳密度高低排列依次为竹根>竹秆>竹蔸>竹枝>竹鞭>竹叶;碳贮量在毛竹不同器官中的分配以竹秆占比例最大,为50.97% ,其次为竹根,占19.79% ,占比例最小的是竹叶,仅占4 87% ;毛竹林生态系统中碳总贮量为106.362t·hm-2 ,其中植被层34.231t·hm-2 ,占了32.18% ,枯落物和土壤层(0~60cm) 72.131t·hm-2 ,占了67.82 % ;毛竹林乔木层碳素年固定量为5.097t·hm-2a-1 ,与粗放经营竹林相比,毛竹集约经营10年后,竹林生态系统中碳贮量减少了8.133t·hm-2 ,但乔木层年净固定碳量增加了0.589t·hm-2a-1

关键词: 毛竹, 碳密度, 碳贮量

Abstract:

Density, storage and spatial distribution of carbon in Phyllostachy pubescens forest were studied by means of sample plot. Carbon density of different bamboo organ ranged from 0.468 3 to 0.5210 g·g-1, which was in order as follow: root>trunk>underground trunk>branch>underground stem>leaf. The organ distribution of carbon storage was 50.97for trunk,19.79 for root and 4.87for leaf. The total carbon storage in bamboo ecosystem was 106.362 t·hm-2, of which the above-ground green vegetation stored 34.231t·hm-2,accounted for 32.18 ,and the forest floor and soil(0~60 cm horizon) stored 72.131 t·hm-2,account for 67.82. Annual carbon fixation of tree story in bamboo forest was 5.097 t·hm-2a-1, which was 1.46 times of Chinese Fir at the fast growing stage, and 1.33 times of tropical mountain rain forest. Compared with traditional practice, after 10-year intensive management, total carbon storage in the bamboo ecosystem declined 8.133 t·hm-2, however, the net annual carbon fixation of tree story appeared an increase of 0.589 t·hm-2a-1.

Key words: Phyllostachy pubescens, Carbon density, Carbon storage