降雨引起的干湿交替对土壤呼吸的影响:进展与展望
文献类型：期刊论文
| 作者 | 李新鸽; 韩广轩 ; 朱连奇; 陈超男
|
| 刊名 | 生态学杂志
 |
| 出版日期 | 2018-11-12 |
| 卷号 | 38期号:2页码:567-575 |
| 关键词 | 土壤呼吸 土壤水分 降雨引起的干湿交替 土壤水分饱和或积水 soil respiration soil moisture drying-wetting cycle soil water saturation |
| ISSN号 | 1000-4890 |
| DOI | 10.13292/j.1000-4890.201902.006 |
| 其他题名 | Effects of drying-wetting cycle caused by rainfall on soil respiration: Progress and prospect |
| 产权排序 | (1)河南大学环境与规划学院 ; (2)中国科学院烟台海岸带研究所中国科学院海岸带环境过程与生态修复重点实验室 |
| 英文摘要 | Soil respiration is an important part of the carbon cycle in terrestrial ecosystems. The changes of soil respiration caused by rainfall directly affect global carbon balance. Therefore, it is important to explore the mechanism underlying the effects of rainfall on soil respiration, which is necessary for understanding the carbon cycle and carbon budget of terrestrial ecosystems. Here, we summarized the research progress on the mechanism of drying-wetting cycle caused by rainfall on soil respiration. Soil respiration can be promoted at intermediate moisture conditions, but suppressed in both wetter and drier conditions. Dryingwetting cycles caused by rainfall affect soil respiration by changing soil moisture. On one hand, under the condition of drought, dryingwetting cycle caused by rainfall improve soil respiration rate by shortterm replacement of CO2 in soil, increases of soil microbial respiratory substrate, increases of microbial activity, and enhancement of litter decomposition. On the other hand, soils with high moisture could reach saturation more quickly or even be waterlogged after a short period of rainfall. Dryingwetting cycle caused by rainfall can significantly suppress soil respiration through restricting the entrance of O2 to the soil, forming an anaerobic environment, and inhibiting microbial and root respiration. In addition, dryingwetting cycle caused by rainfall could significantly inhibit root respiration by flooding part of the plant, reducing plant leaf area and photosynthetic products. In order to accurately estimate the interference of soil respiration on carbon budget of terrestrial ecosystems, future studies on the effects of rainfall on soil respiration should focus on three aspects: (1) microbiological response mechanisms underlying the effects of rainfall on soil respiration; (2) differentiating response mechanisms of soil autotrophic respiration and heterotrophic respiration to rainfall; and (3) modeling the effect of rainfall on soil respiration. |
| 语种 | 中文 |
| CSCD记录号 | CSCD:6419480 |
| 资助机构 | 国家自然科学基金项目#41671089 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/24662]  |
| 专题 | 烟台海岸带研究所_近岸生态与环境实验室 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 作者单位 | 1.中国科学院烟台海岸带研究所中国科学院海岸带环境过程与生态修复重点实验室 2.河南大学环境与规划学院; |
| 推荐引用方式 GB/T 7714 | 李新鸽,韩广轩,朱连奇,等. 降雨引起的干湿交替对土壤呼吸的影响:进展与展望[J]. 生态学杂志,2018,38(2):567-575. |
| APA | 李新鸽,韩广轩,朱连奇,&陈超男.(2018).降雨引起的干湿交替对土壤呼吸的影响:进展与展望.生态学杂志,38(2),567-575. |
| MLA | 李新鸽,et al."降雨引起的干湿交替对土壤呼吸的影响:进展与展望".生态学杂志 38.2(2018):567-575. |
入库方式： OAI收割
来源：烟台海岸带研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。