Herbivores stimulate respiration from labile and recalcitrant soil carbon pools in grasslands of Yellowstone National Park
文献类型：期刊论文
| 作者 | Chen, Ji1,3,4,5; Frank, Douglas A.2 |
| 刊名 | LAND DEGRADATION & DEVELOPMENT
 |
| 出版日期 | 2020-06-07 |
| 页码 | 15 |
| 关键词 | data assimilation decomposition herbivores grazing labile carbon pool plant productivity recalcitrant carbon pool soil incubation | microorganisms |
| ISSN号 | 1085-3278 |
| DOI | 10.1002/ldr.3656 |
| 通讯作者 | Chen, Ji(ji.chen@agro.au.dk) |
| 英文摘要 | Quantifying the effects of grazing on soil organic carbon (SOC) decomposition is of crucial importance for understanding soil C dynamics. However, less attention has been paid to the pool-specific SOC decomposition and the underlying factors associated with each C pool, representing critical knowledge gaps on soil C dynamics. In this study, we applied a state-of-the-art Bayesian data assimilation technique to re-analyze previous soil incubation data to examine how herbivores influenced the fraction and cumulative respiration of labile and recalcitrant soil C pools from seven edaphically diverse sites in Yellowstone National Park, whereas those variables were not explored in the earlier study. Our results showed that grazing significantly increased cumulative respiration from both labile and recalcitrant C pools. Greater cumulative respiration from the labile C pool was related to grazers increasing labile C pool fractions, while higher cumulative respiration from the recalcitrant C pool was associated with grazers accelerating the decomposition rate of the recalcitrant C pool. Cumulative respiration from both labile and recalcitrant C pools was positively correlated with shoot biomass, soil gravimetric moisture, and soil C and nitrogen content. Our results underscore how knowledge of pool-specific SOC decomposition can provide a better mechanistic understanding of soil C dynamics along topo-edaphic gradients in grazed grassland. |
| WOS关键词 | TEMPERATURE SENSITIVITY ; MEADOW GRASSLAND ; ORGANIC-MATTER ; NITROGEN MINERALIZATION ; LIVESTOCK EXCLUSION ; N PROCESSES ; ECOSYSTEM ; DECOMPOSITION ; FEEDBACKS ; RESPONSES |
| 资助项目 | Aarhus Universitets Forskningsfond[AUFF-E-2019-7-1] ; China Postdoctoral Science Foundation[2017M610647] ; China Postdoctoral Science Foundation[2018T111091] ; H2020 Marie SklodowskaCurie Actions[839806] ; National Natural Science Foundation of China[41701292] |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000538296200001 |
| 出版者 | WILEY |
| 资助机构 | Aarhus Universitets Forskningsfond ; China Postdoctoral Science Foundation ; H2020 Marie SklodowskaCurie Actions ; National Natural Science Foundation of China |
| 源URL | [http://ir.ieecas.cn/handle/361006/14862]  |
| 专题 | 地球环境研究所_黄土与第四纪地质国家重点实验室（2010~） |
| 通讯作者 | Chen, Ji |
| 作者单位 | 1.Aarhus Univ, Ctr Circular Bioecon, Dept Agroecol, Tjele, Denmark 2.Syracuse Univ, Life Sci Complex, Syracuse, NY USA 3.Chinese Acad Sci, Key Lab Aerosol Chem & Phys, Inst Earth Environm, Xian, Peoples R China 4.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol SKLLQG, Inst Earth Environm, Xian, Peoples R China 5.Northwestern Polytech Univ, Sch Ecol & Environm, Key Lab Space Biosci Biotechnol, Xian 710072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Ji,Frank, Douglas A.. Herbivores stimulate respiration from labile and recalcitrant soil carbon pools in grasslands of Yellowstone National Park[J]. LAND DEGRADATION & DEVELOPMENT,2020:15. |
| APA | Chen, Ji,&Frank, Douglas A..(2020).Herbivores stimulate respiration from labile and recalcitrant soil carbon pools in grasslands of Yellowstone National Park.LAND DEGRADATION & DEVELOPMENT,15. |
| MLA | Chen, Ji,et al."Herbivores stimulate respiration from labile and recalcitrant soil carbon pools in grasslands of Yellowstone National Park".LAND DEGRADATION & DEVELOPMENT (2020):15. |
入库方式： OAI收割
来源：地球环境研究所
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