RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2009, Vol. 18 >> Issue (2): 111-.

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ESTIMATION OF FOREST CARBON STORAGE AND SEQUESTRATION OF SHELTERBELT IN UPPER AND MIDDLE REACHES OF THE YANGTZE RIVER

ZHANG Lin1, WANG Limao2, WANG Ruibo2,3   

  1. 1.Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China； 2.Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China； 3.College of Earth Science and Resources| China University of Geosciences, Beijing 100083, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-02-20

Abstract:

Based on inventory data investigated during the “Eighth Five Year”,forest biomass carbon density and storage were estimated by a classical method converting timber volume to total forest biomass.Also,potential carbon sequestration was estimated according to the regressions between forest biomass and net production of different tree species.Average carbon density and total carbon storage in upper and middle reaches of the Yangtze River is 2575 t/hm2 and 1 39459 Tg (1 Tg = 1 012 g),respectively.Carbon storage of stand (including nonwood),shrub and bamboo is 1 20430,13437 and 5592 Tg,accounting for 8636%，963% and 401% of the total carbon storage,respectively.Potential carbon sequestration was estimated as 36856 Tg/a.Forest carbon density,storage and potential sequestration were higher in Sichuan Basin Jialinjiang Valley and the West Region with Mountains and Gorges,and lower in Boyang and Dongting water systems,leading to a declining trend in forest carbon density,storage and sequestration from west to east in upper and middle reaches of the Yangtze River.

Key words: carbon density, carbon storage, potential carbon sequestration, upper and middle reaches of the Yangtze River

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