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土壤耕层有机碳及碳储量的变化已经成为全球变化中碳循环研究的重要问题。本文采用上海市松江区第二次土壤普查资料估算松江农田耕层土壤有机碳、有机碳密度及有机碳库。结果显示:上海市松江区农田耕层土壤有机碳密度含量为31.22 tC.hm-2:有机碳库含量为177.15×105t;水稻土有机碳密度及有机碳库在研究区占有很重要的比重,因此,在上海市松江区农田耕层土壤中,保护水稻土有很重要的意义。
Changes in soil organic carbon and carbon storage in soils have become important issues in the carbon cycle research of global change. In this paper, the second soil survey data of Songjiang District of Shanghai was used to estimate the contents of soil organic carbon, organic carbon and organic carbon in the farmland of Songjiang. The results showed that the content of organic carbon in topsoil of Songjiang District in Shanghai was 31.22 tC.hm-2: the content of organic carbon was 177.15 × 105t. The organic carbon density and organic carbon in paddy soil occupied a very important proportion in the study area, Therefore, in Songjiang District, Shanghai farmland topsoil, the protection of paddy soil is of great significance.