Contrasting soil C and N dynamics inferred from delta C-13 and delta N-15 values along a climatic gradient in southern China
文献类型：期刊论文
| 作者 | Feng, Jiao1; Yang, Fan2; Wu, Junjun3; Chen, Qiong1; Zhang, Qian1; Cheng, Xiaoli1 |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2020-05-25 |
| 页码 | 15 |
| 关键词 | Secondary grasslands Carbon and nitrogen cycle Stable carbon and nitrogen isotopes C-3 and C-4 photosynthetic pathways Climatic gradient |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-020-04548-7 |
| 英文摘要 | Aims Secondary grasslands reestablished after deforestation in subtropical and tropical regions greatly alter terrestrial carbon (C) and nitrogen (N) dynamics and their associated ecosystem functions. However, reliable evaluations of C and N dynamics in secondary grasslands across regional climatic gradient remain challenging. Methods We investigated natural C-13 and N-15 abundance in plants and soil as well as their associations with environmental factors (including climatic, plant and edaphic variables) from 20 sites across a 600 km climatic gradient in secondary grasslands of southern China. Results The delta C-13 values in plants and soil declined with increasing mean annual precipitation (MAP) but increased as the mean annual temperature (MAT) increased. These changes were mostly attributed to the shift in plant functional group between C-4 and C-3. In contrast, increasing MAP and decreasing MAT had positive effects on soil delta N-15 values, which were mainly related to changes in edaphic factors, including soil pH, soil C and N content and soil C:N ratios. Conclusions Our findings indicate inverse patterns and different controls on soil delta C-13 and delta N-15 values along the climatic gradient, providing novel insights into the underlying mechanisms of ecosystem C and N dynamics in response to climate and vegetation change in secondary grasslands. |
| 资助项目 | National Natural Science Foundation of China[31700461] ; National Natural Science Foundation of China[31470557] ; National Natural Science Foundation of China[31770563] ; Strategic Priority Research Program B of the Chinese Academy of Sciences[XDB15010200] ; China Postdoctoral Science Foundation[2018 M642962] |
| WOS研究方向 | Agriculture ; Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000535448900002 |
| 出版者 | SPRINGER |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/15301]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Cheng, Xiaoli |
| 作者单位 | 1.Yunnan Univ, Sch Ecol & Environm Sci, Kunming 650091, Yunnan, Peoples R China 2.Huazhong Agr Univ, Coll Resources & Environm, Wuhan 430070, Peoples R China 3.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng, Jiao,Yang, Fan,Wu, Junjun,et al. Contrasting soil C and N dynamics inferred from delta C-13 and delta N-15 values along a climatic gradient in southern China[J]. PLANT AND SOIL,2020:15. |
| APA | Feng, Jiao,Yang, Fan,Wu, Junjun,Chen, Qiong,Zhang, Qian,&Cheng, Xiaoli.(2020).Contrasting soil C and N dynamics inferred from delta C-13 and delta N-15 values along a climatic gradient in southern China.PLANT AND SOIL,15. |
| MLA | Feng, Jiao,et al."Contrasting soil C and N dynamics inferred from delta C-13 and delta N-15 values along a climatic gradient in southern China".PLANT AND SOIL (2020):15. |
入库方式： OAI收割
来源：武汉植物园
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