摘要
本文根据安徽省多目标区域地球化学调查数据以及1980年安徽省土壤第二次普查数据对安徽省江淮流域表层土壤中有机碳储量变化特征等进行了研究分析,结果表明:相对于1980年,本区近20年间碳储量增加了7060228吨。从碳汇、碳源面积衡量,区内碳汇面积较碳源面积多7700km2。区内总体为碳汇区。江淮流域表层土壤中碳储量碳源区主要沿长江带分布,碳汇区主要沿江淮分水岭及沿淮、淮北地区分布。
Based on the multiple-target regional geochemical survey data of Anhui Province and the second general soil survey data of Anhui Province in 1980,this paper analyzed characteristic change of organic carbon reserve in topsoils within the Yangtze and Huai River drainage areas,Anhui Province,indicating that the reserve of organic carbon increased by 7060228t over 20 years compared with the figure of 1980.The area of carbon sink is 7700km2 more than that of carbon source,so the study area is a carbon sink area as a whole.The carbon source of the carbon reserve in the topsoils thereof substantially distributes along the Yangtze River,and the carbon sink around the watershed between the Yangtze and Huai River,along the Huai River and in the Huibei area.
出处
《安徽地质》
2012年第1期40-42,共3页
Geology of Anhui
基金
中国主要农耕区土壤碳库与固碳潜力研究(200911020)
关键词
江淮流域
有机碳储量
碳源
碳汇
the Yangtze and Huai River drainage areas
organic carbon reserve
carbon source
carbon sink
