Free particulate organic carbon plays critical roles in carbon accumulations during grassland succession since grazing exclusion
文献类型：期刊论文
| 作者 | Li, Jiwei1,2,3; Shangguan, Zhouping1,2,3; Deng, Lei1,2,3 |
| 刊名 | SOIL & TILLAGE RESEARCH
 |
| 出版日期 | 2022-06-01 |
| 卷号 | 220页码:13 |
| ISSN号 | 0167-1987 |
| 关键词 | Grazing exclusion Particulate organic carbon Soil extracellular enzymes Soil organic carbon Temperate grassland Vegetation restoration |
| DOI | 10.1016/j.still.2022.105380 |
| 通讯作者 | Deng, Lei(leideng@ms.iswc.ac.cn) |
| 英文摘要 | Grazing exclusion is proposed as an effective strategy for to recover degraded grasslands and increase carbon accumulation. However, few studies have explored the response of soil organic carbon (SOC) and its components to grazing exclusion during long-term succession. In this study, we collected soils from sites with a chronosequence of ~33 years after grazing exclusion with randomized and replicated experiments in the temperate grasslands of the Loess Plateau, China. The contents of SOC, free particulate organic carbon (fPOC), occluded particulate organic carbon (oPOC), and mineral-associated organic carbon (MOC) and their driving factors in the 0-60 cm soil layer were examined in each grassland. The results showed that fPOC, oPOC, and MOC contents were significantly affected (P < 0.05) by grazing exclusion duration and soil depth. Soil fPOC, oPOC, POC, and MOC contents increased with exclusion time, but decreased with soil depth. SOC content was significantly improved since grazing exclusion for more than 26 years compared with that for active grazing grasslands. The fPOC played critical roles in promoting the SOC formation within the entire soil profile (0-60 cm depth). Across the sampled areas, we found a positive association between the concentrations of SOC and its fractions, and the input of litter to the topsoil (0-40 cm), and soil extracellular enzymes at greater depths (40-60 cm). Our results indicate the potential of grazing exclusion for promoting SOC accumulation in semiarid regions, and highlight the need to understand soil carbon stabilization mechanisms in both top- and subsoil under future climate change scenarios. |
| WOS关键词 | SOIL CARBON ; MICROBIAL BIOMASS ; EXTRACTION METHOD ; PLANT DIVERSITY ; MATTER ; STORAGE ; SEQUESTRATION ; TEMPERATE ; NITROGEN ; DECOMPOSITION |
| 资助项目 | National Natural Science Founda-tion of China[41877538] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23070201] ; Key Research and Development Program of Shaanxi Province[2021ZDLSF05-02] ; Scientific and Technological Innovation Project of Shaanxi Forestry Academy of Sciences[SXLK2021-0206] ; Grassland Administration in China[20201326015] |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000805959600004 |
| 资助机构 | National Natural Science Founda-tion of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Research and Development Program of Shaanxi Province ; Scientific and Technological Innovation Project of Shaanxi Forestry Academy of Sciences ; Grassland Administration in China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/178827]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Deng, Lei |
| 作者单位 | 1.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Jiwei,Shangguan, Zhouping,Deng, Lei. Free particulate organic carbon plays critical roles in carbon accumulations during grassland succession since grazing exclusion[J]. SOIL & TILLAGE RESEARCH,2022,220:13. |
| APA | Li, Jiwei,Shangguan, Zhouping,&Deng, Lei.(2022).Free particulate organic carbon plays critical roles in carbon accumulations during grassland succession since grazing exclusion.SOIL & TILLAGE RESEARCH,220,13. |
| MLA | Li, Jiwei,et al."Free particulate organic carbon plays critical roles in carbon accumulations during grassland succession since grazing exclusion".SOIL & TILLAGE RESEARCH 220(2022):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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