RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2015, Vol. 24 >> Issue (06): 1052-1059.doi: 10.11870/cjlyzyyhj201506021

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ESTIMATION OF FOREST BIOMASS AND CARBON STOCK IN THE THREE GORGES RESERVOIR REGION

SHI Peng-cheng1, PENG Dao-li1, HUANG Guo-sheng2, WANG Xue-jun2, ZENG Wei-sheng2, MA Wei2, YE Lin-mei3   

  1. 1. College of Forestry Beijing Forestry University, Beijing 100083, China;
    2. Academy of ForestInventory and Planning, State Forestry Administration, Beijing 100714, China
  • Received:2014-05-22 Revised:2014-08-25 Online:2015-06-20
  • Contact: 彭道黎 E-mail:dlpeng@bjfu.edu.cn

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Abstract: We estimated the biomass and carbon stocks of trees in the entire Three Gorges Reservoir Region based on an establishment of national standing tree biomass model and carbon coefficient measurement and on the combination of the seventh and eighth continuous forest inventory data of this region. The results showed that: (1) The amounts of vegetation biomass and carbon stocks for the seventh survey were 12 583 million tons and 6 471 million tons, respectively. The biomass was 75.70 t/hm2 and carbon density was 38.93 t/hm2. The corresponding amounts for eighth survey were 14 253 million tons and 7 396 million tons, respectively. The biomass was 77.46 t/hm2 and carbon density was 40.20 t/hm2. In the past five years, the biomass and carbon storage in this area have increased and played an important role in carbon sequestration. (2) The vegetation biomass and carbon stocks of pine forests in the two surveys were both significantly higher than other stands, accounting for 40 % and 50% of the total. (3) The biomass and carbon stocks increased first and then decreased with increasing forest age class and for the middle-aged forest, the biomass and carbon stocks reached the maximum. As a general,Young-aged and middle-aged forest dominated during these two surveys. (4)In this area, forest biomass and carbon stocks were mainly composed of natural forests, which played a major role in carbon sequestration. The proportion of plantations has however increased, followed by a gradually increasing ability of carbon sequestration.

Key words: Three Gorges Reservoir Region, forest biomass, carbon stock, carbon density

CLC Number: 

  • S757.2
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