| 论文题目： | Changes in soil carbon and nitrogen stocks and microbial community after forest conversion in a subtropical region |
|---|---|
| 第一作者： | Liu Jiebao, Liu Xiaofei, Lyu Maokui, Wang Jinsong etc. |
| 联系作者： | |
| 发表年度： | 2021 |
| 摘 要： | |
| 英文摘要： | The quantitative understanding of different land use is still limited. We selected typical natural secondary forest (NSF) and Chinese-fir plantation (CPF) in southern China to quantify changes of soil carbon (C) and nitrogen (N) as well as microbial community composition after forest conversion in the soil profile up to 60 cm. The results showed that soil CN stocks and all functional microbial groups in CPF were significantly lower in the topsoil but did not change in the subsoil (10-60 cm) compared to those in NSF after 24 years conversion. Soil C/N ratio did not differ between the two forests for all soil depths. Correlation analysis showed that the abundance of microbial groups in the topsoil was significantly related to soil organic carbon, total nitrogen and forest floor N stock. Redundancy analysis showed that available N, especially NO3--N, was the most dominant factor influencing the microbial community composition. These findings suggest that the plantation could inhibit the accumulation of soil C and N, but the changes are primarily evident in surface soil after conversion. The study improves our understanding of soil C, N and microbial community changes under different land uses and provides insights into sustainable management of Chinese forests. |
| 刊物名称： | SCANDINAVIAN JOURNAL OF FOREST RESEARCH |
| 全文链接： | |
| 论文类别： | SCI |
在线留言
联系我们
所长信箱