Simulation of terrestrial carbon cycle balance model in Tibet

编号 zgly0000311267

文献类型 期刊论文

文献题名 Simulation of terrestrial carbon cycle balance model in Tibet

学科分类 220.1060;森林生态学

作者 WANGJianlin:  HUDan  SUNZibao 

作者单位 DepartmentofAgronomy  TibetanAgricultureandAnimalHusbandryCollege.Nvinechi860000  China 

母体文献 Journal of Geographical Sciences;地理学报: 英文版 

年卷期 2003,13(3)

页码 316-322

年份 2003 

分类号 Q146 

关键词 西藏  陆地生态系统  碳循环  生态平衡  模型 

文摘内容 Based on climate material, the simplified terrestrial carbon cycle balance (TCCB) model was established, which is semi-mechanism and semi-statistics. Through TCCB model, our estimate indicates that the southeastern part of the Tibetan Plateau has much higher carbon content, and we have calculated the litter carbon pool, NPP, carbon fluxes and described their spatial characteristics in this region. Based on the TCCB model simulation, NPP in Tibet is 1.73 × 10^8tC/a, soil organic input rate is 0.66 × l0^8 tC/a, litter mineralization rate is 1.07× l0^8tC/a, vegetation litterfall rate is 1.73× l0^8 tC/a, the litter carbon pool is 7.26 × l0^8 tC, and soil decomposition rate is 309.54 × l0^8tC/a. The carbon budget was also analyzed based on the estimates of carbon pool and fluxes. The spatial distributions of carbon pools and carbon fluxes in different compartments of terrestrial ecosystem were depicted with map respectively in Tibet. The distribution of NPP, vegetation litterfall rate, litter, litter mineralization rate, soil organic input rate and the soil decomposition rate were abstracted with temperature, precipitation, fractional vegetation and land feature。