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木荚红豆群落的能量现存量(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2002年01期
Page:
37-40
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
Standing Crop of Energy in Ormosia xylocarpa Community
Article ID:
1000-2006(2002)01-0037-04
Author(s):
LIN Rui yu 1XIE Jin sheng 1CAI Li ping 1CHEN Yin xiu 1YANG Yu sheng 12
1.Fujian Agricultural and Forestry University,Nanping 353001,China; 2.Post doctoral Station of Biology Xiamen University,Xiamen 361005,China
Keywords:
Ormosia xylocarpa Ash contentCaloric valueEnergy
Classification number :
S718
DOI:
10.3969/j.jssn.1000-2006.2002.01.009
Document Code:
A
Abstract:
Based on the measurement of biomass and the caloric values of plant samples,the standing crop of energy of a 34 year old Ormosia xylocarpa community,which is located in Sanming Xinkuo Tree Farm for teaching and research,was determined.Among the aboveground fractions ash contents and GCV and AFCV were the highest in the leaves of Ormosia xylocarpa .For the subterranean fractions,ash contents increased and GCV and AFCV decreased with the decrease of root diameter size.From tree layer,shrubs layer to herbs layer,the mean of ash content increased,while those of GCV and AFCV decreased.The standing crop of energy in Ormosia xylocarpa forest ecosystem was 4 839.20×10 9 J/hm 2,and that of the aboveground and subterranean fractions was 4 170.92×10 9 J/hm 2(86.19%)and 489.10×10 9 J/hm 2 (10.11%) respectively.96.30% of the standing crop of energy owed to tree layer.It accorded with the distribution of biomass of Ormosia xylocarpa community.

References

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Last Update: 1900-01-01