Precipitation determines the magnitude and direction of interannual responses of soil respiration to experimental warming
文献类型：期刊论文
| 作者 | Wang, Yonghui; Song, Chao; Liu, Huiying; Wang, Shiping ; Zeng, Hui; Luo, Caiyun; He, Jin-Sheng
|
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2020 |
| 关键词 | Climate changes Heterotrophic respiration Autotrophic respiration Tibetan plateau Grassland ecosystems Climate-carbon model |
| 英文摘要 | Background and aims Soil respiration (R-s) is expected to positively feedback to climate warming. The strength of this feedback is uncertain as numerous environmental factors, such as precipitation and soil moisture, can moderate the warming response of R-s. Methods We combined seven-year R-s measurements in a warming experiment in the Tibetan alpine grassland with a meta-analysis on grassland warming experiments globally to investigate how precipitation and soil moisture influences the warming response of R-s. We further analyzed the warming responses of heterotrophic (R-h) and autotrophic (R-a) components of R-s. Results Warming enhanced growing-season R-s in the wet years but decreased it in the dry years in the field experiment at the Tibetan grassland. Precipitation modulated the warming responses of growing-season R-s via R-h, but not R-a. Consistent with the field experiment, a positive relationship between precipitation and the warming response of growing-season R-s was also observed in the global-scale meta-analysis on grassland warming experiments. Conclusions Precipitation influences the warming effects on R-s and could result in variation in warming response of R-s across years and experimental systems. Empirical functions provided by this study could be used to reduce the uncertainty in predicting R-s in a warmer future. |
| 源URL | [http://210.75.249.4/handle/363003/60431]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 推荐引用方式 GB/T 7714 | Wang, Yonghui,Song, Chao,Liu, Huiying,et al. Precipitation determines the magnitude and direction of interannual responses of soil respiration to experimental warming[J]. PLANT AND SOIL,2020. |
| APA | Wang, Yonghui.,Song, Chao.,Liu, Huiying.,Wang, Shiping.,Zeng, Hui.,...&He, Jin-Sheng.(2020).Precipitation determines the magnitude and direction of interannual responses of soil respiration to experimental warming.PLANT AND SOIL. |
| MLA | Wang, Yonghui,et al."Precipitation determines the magnitude and direction of interannual responses of soil respiration to experimental warming".PLANT AND SOIL (2020). |
入库方式： OAI收割
来源：西北高原生物研究所
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