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Citation:

Carbon Concentration Storage and Partition of Populus×euramericana "Zhonglin-46" in Shelterbelts

  • Received Date: 2010-01-30
  • Carbon partition in plants is one of the key points for carbon cycle research. In order to estimate the carbon storage of shelterbelts in plain areas of China accurately, the method of biomass inventory was used to study the individual biomass, organ carbon storage and partition in different organs of 8, 10, 13 and 16 year-old poplar shelterbelts in Yuncheng, Shandong Province. The results indicated that the biomass of different poplar organs followed the pattern of trunk>branch>root>leaf, and the biomass of trunk and branch accounted for about 80% of the total. The carbon concentration of the different organs followed leaf>branch >trunk >root. The carbon concentration of different organs ranged between 43.51% and 70.49%. The carbon concentration of the four age groups’ shelterbelts were higher than 50%, which was slightly higher than the average carbon concentration of poplar in Northern China(48.80%). The variation coefficient of carbon concentration was the smallest for leaf, and the largest for root. As for the difference of carbon concentration, it was significant among different organs for all the four age groups, and not significant among the whole trees for the four age groups. The carbon storage was closely related to its biomass for all tree organs, and its sequence was trunk>branch>root>leaf. The proportion of trunk carbon storage obviously increased with tree age.
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Carbon Concentration Storage and Partition of Populus×euramericana "Zhonglin-46" in Shelterbelts

  • 1. School of Soil and Water Conservation, Beijing Forestry University, Key Laboratory of Soil & Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083, China
  • 2. Chinese Society of Water and Soil Conservation, Beijing 100083, China

Abstract: Carbon partition in plants is one of the key points for carbon cycle research. In order to estimate the carbon storage of shelterbelts in plain areas of China accurately, the method of biomass inventory was used to study the individual biomass, organ carbon storage and partition in different organs of 8, 10, 13 and 16 year-old poplar shelterbelts in Yuncheng, Shandong Province. The results indicated that the biomass of different poplar organs followed the pattern of trunk>branch>root>leaf, and the biomass of trunk and branch accounted for about 80% of the total. The carbon concentration of the different organs followed leaf>branch >trunk >root. The carbon concentration of different organs ranged between 43.51% and 70.49%. The carbon concentration of the four age groups’ shelterbelts were higher than 50%, which was slightly higher than the average carbon concentration of poplar in Northern China(48.80%). The variation coefficient of carbon concentration was the smallest for leaf, and the largest for root. As for the difference of carbon concentration, it was significant among different organs for all the four age groups, and not significant among the whole trees for the four age groups. The carbon storage was closely related to its biomass for all tree organs, and its sequence was trunk>branch>root>leaf. The proportion of trunk carbon storage obviously increased with tree age.

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