Long-term changes in soil pH across major forest ecosystems in China
文献类型：SCI/SSCI论文
| 作者 | Yang Y. H.; Li, P. ; He, H. L.; Zhao, X.; Datta, A.; Ma, W. H.; Zhang, Y.; Liu, X. J.; Han, W. X.; Wilson, M. C.
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| 发表日期 | 2015 |
| 关键词 | Artificial Neural Network Data Synthesis National Soil Inventory Soil Ph Dynamics Organic-carbon Nitrogen Deposition Tropical Forest Sulfur-dioxide East-asia Acidification Mountains Emissions Patterns Trends |
| 英文摘要 | Atmospheric acidic deposition has been a major environmental problem since the industrial revolution. However, our understanding of the effect of acidic deposition on soil pH is inconclusive. Here we examined temporal variations in topsoil pH and their relationships with atmospheric sulfur and nitrogen deposition across China's forests from the 1980s to the 2000s. To accomplish this goal, we conducted artificial neural network simulations using historical soil inventory data from the 1980s and a data set synthesized from literature published after 2000. Our results indicated that significant decreases in soil pH occurred in broadleaved forests, while minor changes were observed in coniferous and mixed coniferous and broadleaved forests. The magnitude of soil pH change was negatively correlated with atmospheric sulfur and nitrogen deposition. This relationship highlights the need for stringent measures that reduce sulfur and nitrogen emissions so as to maintain ecosystem structure and function. |
| 出处 | Geophysical Research Letters |
| 卷 | 42 |
| 期 | 3 |
| 页 | 933-940 |
| 语种 | 英语 |
| ISSN号 | 0094-8276 |
| DOI标识 | 10.1002/2014gl062575 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/38981]  |
| 专题 | 资源利用与环境修复重点实验室_外文论文 中国科学院地理科学与资源研究所 |
| 推荐引用方式 GB/T 7714 | Yang Y. H.,Li, P.,He, H. L.,et al. Long-term changes in soil pH across major forest ecosystems in China. 2015. |
入库方式： OAI收割
来源：地理科学与资源研究所
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