Volume 27 Issue 5
Oct.  2010
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GU Li-ping, GUO Yong-qing, LANG Nan-jun, YANG Xu, ZE Sang-zi, LI Jiang, RUAN Hong-hua, GU Xiao-ping. Carbon density and allocation in young Jatropha curcas stands of the Honghe Region,Yunnan Province[J]. Journal of Zhejiang A&F University, 2010, 27(5): 671-676. doi: 10.11833/j.issn.2095-0756.2010.05.006
Citation: GU Li-ping, GUO Yong-qing, LANG Nan-jun, YANG Xu, ZE Sang-zi, LI Jiang, RUAN Hong-hua, GU Xiao-ping. Carbon density and allocation in young Jatropha curcas stands of the Honghe Region,Yunnan Province[J]. Journal of Zhejiang A&F University, 2010, 27(5): 671-676. doi: 10.11833/j.issn.2095-0756.2010.05.006

Carbon density and allocation in young Jatropha curcas stands of the Honghe Region,Yunnan Province

doi: 10.11833/j.issn.2095-0756.2010.05.006
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  • Corresponding author: GUO Yong-qing
  • Publish Date: 2010-10-20
通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Carbon density and allocation in young Jatropha curcas stands of the Honghe Region,Yunnan Province

doi: 10.11833/j.issn.2095-0756.2010.05.006
    Corresponding author: GUO Yong-qing

Abstract: Stand density of Jatropha curcas and the soil organic carbon content ratio of different organs compared to the whole plant in the Honghe Region,Yunnan Province was determined. Using the mean tree sampling method(20 m 20 m) a regression equation for estimating biomass of different organs in young stands was established,and carbon content ratios were determined with a VARIO EL elemental analyzer. Then vegetative biomass and organic carbon allocation of the stand were calculated. Results showed that the best regression equation for calculating the biomass of young J. curcas was y = 25.005(D2H)0.952. Based on this equation and the sampling plots,biomass of the young forest was 26.03 thm-2. Carbon content ratios for the different organs ranged between 39.35% - 56.74% with fruit = 56.74%,stems = 45.87%,roots = 45.12%,leaves = 39.35%,and the mean carbon content ratio for the whole plant = 47.3%. Also,carbon density was:J. curcas = 5.54 thm-2,shrub-grass = 3.78 thm-2,and litter = 2.59 thm-2. Additionally,the organic carbon content ratio was highest (16.61 gkg-1) at the 0 - 10 cm soil layer depth.[Ch,2 fig. 3 tab. 25 ref.]

GU Li-ping, GUO Yong-qing, LANG Nan-jun, YANG Xu, ZE Sang-zi, LI Jiang, RUAN Hong-hua, GU Xiao-ping. Carbon density and allocation in young Jatropha curcas stands of the Honghe Region,Yunnan Province[J]. Journal of Zhejiang A&F University, 2010, 27(5): 671-676. doi: 10.11833/j.issn.2095-0756.2010.05.006
Citation: GU Li-ping, GUO Yong-qing, LANG Nan-jun, YANG Xu, ZE Sang-zi, LI Jiang, RUAN Hong-hua, GU Xiao-ping. Carbon density and allocation in young Jatropha curcas stands of the Honghe Region,Yunnan Province[J]. Journal of Zhejiang A&F University, 2010, 27(5): 671-676. doi: 10.11833/j.issn.2095-0756.2010.05.006

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