A study of Soil Carbon Distribution and Change in Northeast Plain

• 责任者：Xi Xiaohuan (China Geological Survey ; Beijing 100037 ; China) ; Yang Zhongfang
• 刊名：Earth Science Frontiers
• 出版年：2010
• 卷期：17(3)
• 关键词：有机碳 ; organic carbon ; 土壤 ; soils ; 东北平原 ; Northeast China Plain
• 页码：p.213-221
• 图表：19 tables, 18 refs.
• 分类号：1800
• issnNo：ISSN1005-2321
• isbnNo：CN11-3370/P

By using the USCA (Unit Soil Carbon Amount) method, soil carbon storage in Northeast Plain of 230 000 km² was calculated based on the multi-purpose regional geochemical survey. The results show that topsoil (0～20 cm) organic carbon storage is 768.07 Mt with carbon density of 3 327.8 t/km², subsoil (0~100 cm) organic carbon storage is 2978.41 Mt with carbon density of 12 904.7 t/km², and deep soil (0~180 cm) organic carbon storage is 3 729.16 Mt with carbon density of 16 157.5 t/km², which stay on the national average level. This research will provide basic knowledge to understand soil carbon distribution and to study the potential for soil carbon sequestration.