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《Hunan Forestry Science and Technology》 2004-04
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Computing model for carbon storage in forest ecosystem and the estimation of annual storage in area of Changsha Zhuzhou and Xiangtan

YUAN Zheng-ke~1, TIAN Da-lun~2, WU Chun-ying~3, YUAN Sui-bo~1, FU Sao-chun~1(1.Hunan Forestry Academy, Changsha 410004 China;2.Central South Forestry Univ., Zhouzhu 412006,China;3.Forestry Bureau of Tong dao County H uihua 418500, China)  
In terms of the balance theory of carbon dioxide in the forest ecosystem, and based on the equation of Fc=Nc(annual plant carbon)+Dc(defoliation carbon)+Mc(microorganism carbon)+Ec(other zoological and organic carbon)-Rs(carbon releasfrom soil),amodel, Fc=∑mj=1∑ni=1BEF_(cij)·X_(cij)·113+113D_(cij)+∑Hk=1λ_i·M_(kij)·113-0.6?R_(ij)·S_(ij).Of the model, X_(cij)=the annual net production of forest plants;D_(cjj)=carbon dioxide stored in defoliation;M_(kij)=carbon content of microorganism; R_(ij)=carbon dioxide release from soil; S_(ij)=area; i=serial number of forest type, j=serial number of soil type or regional. Based on previous research data, parameters were identified, and the amount of CO_2 annually storied in the forest ecosystem within the three cities, Changsha, Zhuzhou and Xiangtan was up to (3?946.4)×10~4?t, which was 2.38 times of the total carbon dioxide released from fuel burning in industries within the three cities in year 2000. The data showed that the forest ecosystem is great pool of CO_2 storage . Also there were great differences of CO_2 storage capacity in different types of forest, which range from 6.784?t?/hm~2.a to 54.163?t?/hm~2.a. And ranked from large capacity to small, forests sort order was: bamboo forest slash pine forestbroadleaved forestrounding treescypress forest massion pine Chinese firopen and shrub foresteconomic forest. Among of the total CO_2 stored in different forest ecosystems, microorganisms of soil stored 25.98?% to 70.61?%, while in economic forest microorganisms stored 135.68?%.
【Fund】: “十五”国家科技攻关和湖南省计委资助项目的部分研究内容
【CateGory Index】: S718.557
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