National Natural Science FoundationNational Natural Science Foundation of China [41371228]; Natural Science FoundationNational Natural Science Foundation of China [2017JJ3120]; Youth Foundation of the Department of Education of Hunan Province [16B120]
机构署名：
本校为第一且通讯机构
院系归属：
资源环境学院
摘要：
The study of organic matter in ancient paddy soils is helpful for understanding the influence of human activities on soil carbon sequestration and global climate change. However, little information on the spatial distribution and structural characteristics of the humic substances (HS) in ancient paddy soils is available. The spatial distributions of humic acids (HAs) and fulvic acids (FAs) in ancient paddy soils and modern cultivated paddy soils at the Shanlonggang site on the Liyang Plain were investigated, and the associated structures were characterized by using (13)C nuclear magnetic reson...
