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Position: Home > Articles > Study on Simulating Soil Carbon Storage and Balance in High-yield Huabei Plai n Journal of Agricultural Science and Technology 2004,6 (5) 27-32

华北平原高产粮区土壤碳储量与平衡的模拟研究

作  者:
王立刚;邱建军
单  位:
中国农业科学院农业资源与农业区划研究所
关键词:
高产粮区;农业生态系统;土壤;有机碳
摘  要:
DNDC模型在 GIS区域数据库的支持下 ,应用于华北平原高产粮区 (以河北省邯郸市为例 )农业生态系统土壤碳循环规律的研究中 ,运行结果表明 :1998年邯郸地区 6 70 973hm2农业耕地土壤的总有机碳储量为 12 781.4 4× 10 6 kg,以武安县和永年县最为丰富 ,平均每公顷耕地土壤有机碳 (SOC)储量为 195 4 5 .88kg。 1990年邯郸地区农业土壤有机碳为负平衡 ,1998年为正平衡。根据模型模拟分析得出 ,免耕、提倡人畜粪便还田、增加秸秆还田比例和适量施用化肥都可以增加土壤有机碳的积累 ,并可以减少环境污染、降低成本、提高效益
译  名:
Study on Simulating Soil Carbon Storage and Balance in High-yield Huabei Plai n
作  者:
WANG Li-gang, QIU Jian-jun (Institute of Natural Resources and Regional Planning,CAAS,Beijing 100081,Chin a)
关键词:
high yield region; agro-ecosystem; soil; organic car bon
摘  要:
DNDC model was employed with the support of GIS regional database simulating the soil carbon cycle regulation of agro-ecosystem in High-yield Huabei Plain , taking Handan district as study case. The results running shows that: The total organic carbon storage of farm land in Handan district area was 12 781.4 4×106 kg. Furthermore SOC of Wuan county and Yongnian county is the most ab undant in this district with average percent hectare soil 19 545.88 kgC. In 1990 the organic carbon in Handan district kept in negative balance and in 1998 it kept positive balance. According the model simulating, Some agricultural meth ods, i.e. no tillage, returning straw to soil, proper manure and proper fertiliz er, could increase soil organic carbon accumulation, reduce environment poll ution, decrease cost and improve profits.

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