【摘 要】
：
Based on the density of soil organic carbon of various types of land use,combined with the data on land use of Shanghai,we estimate SOC reserves in 0-20 cm of topsoil in Shanghai in 1994、2000、2003 and
【机 构】
：
Geography Department of Taiyuan Normal University,Taiyuan 030012,China;Research Center for Scientifi
【出 处】
：
第十届中日韩地理学联合会议、第一届亚洲地理学大会、第十五次全国青年地理工作者学术研讨会
论文部分内容阅读
Based on the density of soil organic carbon of various types of land use,combined with the data on land use of Shanghai,we estimate SOC reserves in 0-20 cm of topsoil in Shanghai in 1994、2000、2003 and 2006.The results show the SOC reserves in 0-20 cm topsoil in Shanghai were 14904700 T,13991200 T,12835600 T,11858000 T in the four years the average density of SOC were 35.41 t/hm2,35.44 t/hm2,35.06 t/hm2,35.15 t/hm2,in the four years,which showed the trend of decreasing year by year.
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