Acta Geographica Sinica ›› 2013, Vol. 68 ›› Issue (9): 1212-1224.doi: 10.11821/dlxb201309005

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Spatial distribution of forest vegetation carbon stock in China based on HASM

ZHAO Mingwei1,2, YUE Tianxiang1, ZHAO Na1,2, SUN Xiaofang3   

  1. 1. State Key Laboratory of Resources and Environment Information System, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China;
    3. School of Geography and Tourism, Qufu Normal University, Rizhao 276800, Shandong, China
  • Received:2013-05-20 Revised:2013-06-21 Online:2013-09-05 Published:2013-11-05
  • Contact: 岳天祥(1963- ), 博士, 研究员, 中国地理学会会员(S110007693M), 研究方向为资源环境地学模型与系统模拟。E-mail: yue@lreis.ac.cn E-mail:yue@lreis.ac.cn
  • Supported by:
    Foundation National High-tech R&D Program of the Ministry of Science and Technology of the People's Republic of China, No.2013AA122003; National Key Technologies R&D Program of the Ministry of Science and Technology of the People's Republic of China, No. 2013BACO3B05

Abstract: As the forests are the main carbon stock reservoir of the terrestrial ecosystem, it is of great importance to estimate its carbon stock and spatial distribution accurately in regional scale. However, the current estimation of forest carbon stock in regional scale primarily depends on the forest inventory data, and the whole process of it consumes labor, money and time, and influences the update of the forest carbon storage at the same time. With the purpose of solving these problems, this paper puts forward a forest vegetation carbon storage simulation method based on HASM. This new method takes the output of LPJ-GUESS model as initial values of HASM and uses the inventory data as sample points of HASM to simulate the distribution of forest carbon storage in China. The research takes the 7th forest resources statistics of China as the data source to produce sample points, and it also serves as the simulation accuracy test. The HASM simulation makes it clear that the total forest carbon storage of China is 9.2405 Pg, and the calculated value based on forest resources statistics is 7.8115 Pg. As regards that the forest resources statistics is taken based on a forest canopy closure, the result of HASM is much more suitable to the real forest carbon storage. The simulation result also demonstrates that the southwestern mountainous and the northeastern forests are the dominating forest carbon reservoirs in China, and they account for 39.82% and 20.46% respectively. Compared with the former value (1975-1995), the carbon storage of the two regions did increase apparently. The results of this research indicate that the large reforestation in the last decades in China attains a significant carbon sink.

Key words: initial value, LPJ-GUESS, HASM, sample points, forest carbon storage